| | Date | System | Genre | Unreleased |
|---|
| 'Splosion Man (Apr 24, 2009 prototype) | 24 April 2009 17:12:17 | Xbox 360 | Platform | - |
| .Hack Infection Part 1 (Jan 9, 2004 prototype) | 9 January 2004 18:01:59 | PlayStation 2 | Role-playing | - |
| 0 Day Attack on Earth (Oct 16, 2009 prototype) | 16 October 2009 22:33:43 | Xbox 360 | Arcade | - |
| 007: Everything or Nothing (Dec 12, 2003 prototype) | 12 December 2003 03:48:28 | PlayStation 2 | Third-Person Shooter | - |
| 007: Everything or Nothing (Jan 7, 2004 prototype) | 7 January 2004 14:05:08 | Xbox | Action-Adventure, Stealth | - |
| 007: From Russia with Love (Aug 16, 2005 prototype) | 16 August 2005 13:47:38 | PlayStation 2 | Action | - |
| 007: From Russia with Love (Aug 23, 2005 prototype) | 23 August 2005 | PlayStation 2 | Third Person Shooter | - |
| 007: From Russia with Love (Dec 5, 2005 debug build) | 5 December 2005 17:09:34 | Xbox | Action | - |
| 007: From Russia with Love (Jul 13, 2005 prototype) | 13 July 2005 14:32:31 | Xbox | Action | - |
| 007: From Russia with Love (Sep 11, 2005 prototype) | 11 September 2005 07:43:47 | Xbox | Action | - |
| 007: From Russia with Love (Sep 25, 2005 prototype) | 25 September 2005 18:39:29 | PlayStation 2 | Action | - |
| 007: From Russia with Love (Sep 30, 2005 prototype) | 30 September 2005 07:02:59 | Xbox | Action | - |
| 007: Legends (Aug 7, 2012 prototype) | 7 August 2012 | Xbox 360 | FPS | - |
| 007: Legends (Jun 18, 2012 prototype) | 18 June 2012 | Xbox 360 | FPS | - |
| 007: Legends (Nov 13, 2012 prototype) | 13 November 2012 | Xbox 360 | FPS | - |
| 007: Nightfire (Oct 18, 2002 prototype) | 18 October 2002 05:59:30 | Xbox | First-person shooter | - |
| 007: The World Is Not Enough (Aug 26, 2000 prototype) | 26 August 2000 | PlayStation | First-person shooter, stealth | - |
| 007: The World is Not Enough (Prototype - 2020 release) | | Nintendo 64 | First-person shooter, stealth | - |
| 007: The World is Not Enough (Prototype) | | Nintendo 64 | FPS | - |
| 007: Tomorrow Never Dies (Oct 10, 1999 prototype) | 10 October 1999 12:22:26 | PlayStation | Third Person Shooter | - |
| 1 vs. 100 (Apr 14, 2010 Prototype) | 14 April 2010 | Xbox 360 | | - |
| 1 vs. 100 (Dec 7, 2009 prototype) | 7 December 2009 | Xbox 360 | | - |
| 10-Pin Bowling (Game Boy prototype) | | Game Boy | Bowling | ✓ |
| 100 Bullets (Apr 22, 2004 prototype) | 22 April 2004 | Xbox | Action | ✓ |
| 100 Bullets (Aug 6, 2004 prototype) | 6 August 2004 | Xbox | Action | ✓ |
| 100 Bullets (Jun 30, 2004 prototype) | 30 June 2004 | PlayStation 2 | Action | ✓ |
| 101 Dalmatians (Aug 14, 1996 prototype) | 14 August 1996 06:07:02 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 16, 1996 prototype) | 16 August 1996 05:19:20 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype B) | 17 August 1996 06:47:28 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype J) | 16 August 1996 20:56:56 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype U) | 16 August 1996 18:59:48 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 18, 1996 prototype) | 18 July 1996 12:31:08 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 3, 1996 prototype) | 3 July 1996 11:22:50 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 5, 1996 prototype) | 7 July 1996 13:11:32 | Sega Pico | Educational | - |
| 101 Dalmatians (May 21, 1996 prototype) | 21 May 1996 17:26:14 | Sega Pico | Educational | - |
| 101 Dalmatians (May 31, 1996 prototype) | 31 May 1996 08:51:22 | Sega Pico | Educational | - |
| 102 Dalmatians: Puppies to the Rescue (Oct 1, 2000 prototype) | 10 October 2000 | Dreamcast | Platform | - |
| 18 Wheeler: American Pro Trucker (Apr 5, 2001 prototype) | 5 April 2001 22:04:22 | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Feb 2, 2001 prototype) | 2 February 2001 04:11:28 | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Nov 12, 2001 prototype) | 12 November 2001 | Nintendo GameCube | Racing | - |
| 1942: Joint Strike (Apr 17, 2008 prototype) | 17 April 2008 | Xbox 360 | Shoot Em Up | - |
| 1943: The Battle of Midway (Prototype) | | NES | Shooter | - |
| 2 Games in 1: The SpongeBob SquarePants Movie / Battle for Bikini Bottom (Nov 10, 2005 prototype) | 10 November 2005 | Nintendo GameCube | Compilation | - |
| 2 in 1: Dora the Explorer Double Pack (Prototype) | | Game Boy Advance | Compilation | - |
| 2010 FIFA World Cup South Africa (Feb 10, 2010 German and French prototype) | 10 February 2010 | PlayStation Portable | Sports | - |
| 2010 FIFA World Cup South Africa (Jan 23, 2010 prototype) | 23 January 2010 | Xbox 360 | Sports | - |
| 2010: The Graphic Action Game (Nov 9, 1984 prototype) | 9 November 1984 | ColecoVision | Puzzle | - |
| 2010: The Graphic Action Game (RV44 prototype) | | ColecoVision | Puzzle | - |
| 2097 ROM Pack II | | Game Boy | Test cartridge | - |
| 2420 ROM Pack V | | Game Boy | Test cartridge | - |
| 2440 ROM Pack | | Game Boy | Test cartridge | - |
| 24: The Game (Dec 13, 2005 prototype) | 13 December 2005 22:51:40 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 10, 2006 prototype) | 10 January 2006 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 9, 2006 prototype) | 9 January 2006 01:29:18 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Nov 28, 2005 prototype) | 28 November 2005 10:18:41 | PlayStation 2 | Third-person shooter | - |
| 25 to Life (Dec 8, 2005 prototype) | 8 December 2005 | Xbox | Third-person shooter | - |
| 25 to Life (May 24, 2005 prototype) | 24 May 2005 23:53:09 | PlayStation 2 | Third-person shooter | - |
| 2Xtreme (Aug 29, 1996 prototype) | 29 August 1996 13:02:18 | PlayStation | Racing | - |
| 3 on 3 NHL Arcade (Dec 1, 2008 prototype) | 1 December 2008 | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Dec 17, 2008 prototype) | 17 December 2008 | Xbox 360 | Sports - Hockey | - |
| 3-D Genesis (prototype) | | Atari 2600 | Shoot 'em up | ✓ |
| 3-D Rubik's Cube (prototype) | | Atari 2600 | Puzzle | ✓ |
| 3-D Zapper (Dec 15, 1982 prototype) | 15 December 1982 | Atari 2600 | Shoot 'em up | ✓ |
| 3-D Zapper (prototype 2) | | Atari 2600 | Shoot 'em up | ✓ |
| 3D Baseball (Aug 30, 1996 prototype) | 30 August 1996 20:30:23 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Aug 6, 1996 prototype) | 6 August 1996 16:31:40 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Oct 16, 1996 prototype) | 16 October 1996 07:17:52 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Sep 19, 1996 prototype) | 19 September 1996 18:35:56 | Sega Saturn | Sports - Baseball | - |
| 3D Challenge (Tech Demo) (E3 prototype) | | Nintendo 3DS | | - |
| 3D Gunner (Prototype) | | Sega Master System | Shooter | ✓ |
| 3D Lemmings (Aug 23, 1995 prototype) | 23 August 1995 15:41:06 | PlayStation | Puzzle | - |
| 3D Lemmings (Aug 8, 1995 prototype) | 8 August 1995 15:36:48 | PlayStation | Puzzle | - |
| 3D Pinball: Space Cadet (Apr 26, 1995 prototype) | 26 April 1995 18:49:55 | PC | Pinball | - |
| 3D Pinball: Space Cadet (July 3, 1995 prototype) | 3 July 1995 05:30:00 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 12, 1995 prototype) | 12 June 1995 23:02:24 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 16, 1995 prototype) | 16 June 1995 20:41:19 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 27, 1995 prototype) | 27 June 1995 17:19:44 | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 12, 1995 prototype) | 12 May 1995 16:36:21 | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 26, 1995 prototype) | 26 May 1995 17:33:35 | PC | Pinball | - |
| 3D Pocket Pool (Prototype) | | Game Boy Color | Pool | - |
| 3DO M2 Shooter Demo | | Panasonic M2 | Tech Demo | - |
| 4 Wheel Thunder (Jan 26, 2000 prototype) | 26 January 2000 16:32:38 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Jan 29, 2000 prototype) | 29 January 2000 18:00:12 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Mar 31, 2000 prototype) | 31 March 2000 19:36:08 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Nov 5, 1999 prototype) | 5 November 1999 13:57:00 | Dreamcast | Racing | - |
| 4 in 1 (Feb 19, 1987 prototype) | 19 February 1987 | Atari 2600 | Various | ✓ |
| 40 Winks (Oct 7, 1999 prototype) | 7 October 1999 11:30:42 | Nintendo 64 | Platform | ✓ |
| 4x4 Evolution (Jan 9, 2001 prototype) | 9 January 2001 11:47:12 | Dreamcast | Racing | ✓ |
| 500 Years After (Mar 1, 1993 prototype) | 1 March 1993 | Philips CD-i | FMV | - |
| 64DD IPL (US Prototype) | | | Development | - |
| 64DD IPL Disk (v1.0) | | | Development | - |
| 64DD IPL Disk (v1.1) | | | Development | - |
| 64DD TOOL IPL (Development Drive) | | | Development | - |
| 7 Sins (Sep 29, 2004 prototype) | 29 September 2004 | PlayStation 2 | Life simulation game | - |
| 7th Guest (Feb 4, 1994 prototype) | 4 February 1994 12:05:41 | Philips CD-i | First-Person Adventure | - |
| 8 in 1 (Nov 16, 1992 prototype) | | Atari 2600 | Compilation | ✓ |
| 90 Minutes: European Prime Goal (prototype) | | SNES | Sports | - |
| 90 Minutes: Sega Championship Football (Sep 18, 2001 prototype) | 18 September 2001 | Dreamcast | Sports - Football | - |
| A Boy and His Blob (Jul 21, 2005 prototype) | 21 July 2005 | Nintendo DS | Puzzle | ✓ |
| A Boy and His Blob (May 16, 2005 prototype) | 16 May 2005 | Nintendo DS | Puzzle | ✓ |
| A Kingdom for Keflings (Apr 14, 2009 prototype) | 14 April 2009 | Xbox 360 | Strategy | - |
| A Kingdom for Keflings (Oct 29, 2008 prototype) | 29 October 2008 | Xbox 360 | Strategy | - |
| A Night in Nylon City (Oct 28, 1994 prototype) | 28 October 1994 | Philips CD-i | FMV | - |
| A Week of Garfield (Prototype) | | NES | Platformer | - |
| A Week of Garfield (Ver 0.9 prototype) | | NES | Platformer | - |
| A World of Keflings (Oct 19, 2010 prototype) | 19 October 2010 | Xbox 360 | Strategy | - |
| A-Max Boxing (prototype) | | Nintendo DS | Sports | ✓ |
| A-Max Tennis (prototype) | | Nintendo DS | Sports | ✓ |
| A-Team (Mar 30, 1984 prototype) | | Atari 2600 | | ✓ |
| A-Team (May 8, 1984 prototype) | | Atari 2600 | | ✓ |
| A.J.'s World of Discovery (Apr 5, 1993 prototype) | 5 April 1993 | PC | Educational adventure | - |
| AGING-NTR (Aug 18, 2004 prototype) | 18 August 2004 | Nintendo DS | Diagnostic | ✓ |
| AH-64D Apache (Mar 26, 2003 prototype) | 26 March 2003 15:11:27 | PlayStation 2 | Action | - |
| AMF Bowling (Prototype) | | Game Boy Color | Bowling | ✓ |
| ATP Tour Championship Tennis (Aug 2, 1994 prototype) | 2 August 1994 16:39:48 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 5, 1994 prototype) | 5 August 1994 05:22:18 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 8, 1994 prototype) | 8 August 1994 15:44:46 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 19, 1994 prototype) | 19 July 1994 05:43:00 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 23, 1994 prototype) | 25 July 1994 12:02:30 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (May 9, 1994 prototype) | 26 May 1994 21:33:22 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 19, 1994 prototype) | 19 September 1994 05:53:12 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 8, 1994 prototype) | 14 September 1994 06:10:28 | Sega Mega Drive | Sports - Tennis | - |
| ATV Offroad Fury 3 (Aug 22, 2004 prototype) | 22 August 2004 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Aug 6, 2004 prototype) | 6 August 2004 15:03:14 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jul 23, 2004 prototype) | 23 July 2004 06:01:15 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jun 8, 2004 prototype) | 8 June 2004 13:10:10 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 8, 2004 prototype) | 8 November 2004 11:47:45 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 9, 2004 prototype) | 9 November 2004 13:37:38 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Oct 13, 2004 prototype) | 13 October 2004 20:11:01 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 4 (Oct 2, 2006 prototype) | 2 October 2006 | PlayStation 2 | | - |
| ATV Offroad Fury Pro (Sep 25, 2006 prototype) | 25 September 2006 | PlayStation Portable | | - |
| ATV3: Lawless (May 7, 2005 prototype) | 7 May 2005 | Xbox | Racing | ✓ |
| ATV: Quad Power Racing (Jul 4, 2000 prototype) | 4 July 2000 18:29:56 | PlayStation | Racing | - |
| ATV: Quad Power Racing 2 (Dec 12, 2002 prototype) | 12 December 2002 17:58:28 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Dec 2, 2002 prototype) | 2 December 2002 14:17:00 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Nov 11, 2002 prototype) | 11 November 2002 21:08:29 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Nov 6, 2002 prototype) | 6 November 2002 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Oct 11, 2002 prototype) | 11 October 2002 18:01:57 | Nintendo GameCube | Racing | - |
| ATV: Quad Power Racing 2 (Oct 2, 2002 prototype) | 2 October 2002 14:10:27 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Oct 7, 2002 prototype) | 7 October 2002 12:17:58 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Sep 30, 2002 prototype) | 30 September 2002 20:41:12 | PlayStation 2 | Racing | - |
| ATWINMON v1.13 INET (Sep 8, 2003 prototype) | 8 September 2003 15:37:20 | PlayStation 2 | Test Application | - |
| Aaahh!!! Real Monsters (Jul 7, 1995 prototype) | 7 July 1995 | Sega Mega Drive | Adventure | - |
| Abomination: The Nemesis Project (Sep 15, 1999 prototype) | 15 September 1999 | PC | | - |
| Absolute X (Prototype) | | Game Boy Color | Shooter | ✓ |
| Ace Combat 04: Shattered Skies (Nov 14, 2001 prototype) | 15 November 2001 14:33:44 | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 3: Electrosphere (Dec 9, 1999 prototype) | 9 December 1999 01:01:00 | PlayStation | Flight Combat Simulator | - |
| Ace Combat 3: Electrosphere (Jan 7, 2000 prototype) | 7 January 2000 00:00:00 | PlayStation | Flight Combat Simulator | - |
| Ace Combat Advance (Prototype) | | Game Boy Advance | Flight Combat | - |
| Ace Combat X: Skies of Deception (Aug 1, 2006 prototype) | 1 August 2006 19:01:55 | PlayStation Portable | Shooting | - |
| Ace Combat X: Skies of Deception (Aug 16, 2006 prototype) | 16 August 2006 23:27:31 | PlayStation Portable | Flight Combat | - |
| Ace Combat: Assault Horizon (Jul 11, 2011 prototype) | 11 July 2011 | Xbox 360 | Air combat simulation | - |
| Aces of the Galaxy (Feb 22, 2008 prototype) | 22 February 2008 | Xbox 360 | Third Person Shooter | - |
| Acolyte (Prototype) | | Amstrad CPC | Action | ✓ |
| Action Bass (Jun 21, 2000 prototype) | 21 June 2000 18:44:30 | PlayStation | Fishing | - |
| Action Fighter (Prototype) | | Sega Master System | Action | - |
| Actionauts (Jun 22, 1984 prototype) | | Atari 2600 | | ✓ |
| Active Life: Explorer (Jun 9, 2010 prototype) | 9 June 2010 | Nintendo Wii | | - |
| Active Life: Magical Carnival (Nov 7, 2011 prototype) | 7 November 2011 | Nintendo Wii | Minigames | - |
| Activision Classics (Jul 27, 1998 prototype) | 27 July 1998 20:42:44 | PlayStation | Compilation | - |
| Addams Family Values (Early SNES Prototype) | | SNES | Action Adventure | - |
| Addams Family Values (Mega Drive Prototype) | | Sega Mega Drive | Action Adventure | - |
| Addams Family Values (Prototype) | | Sega Mega Drive | Action Adventure | - |
| Advance Wars (iQue Prototype) | | Game Boy Advance | Strategy | - |
| Advanced Daisenryaku - Deutsch Dengeki Sakusen (Mar 7, 1991 prototype) | 7 March 1991 17:35:20 | Sega Mega Drive | Strategy | - |
| Advanced Dungeons & Dragons: Hillsfar (Prototype) | | NES | Role Playing | - |
| Advent Rising (Apr 22, 2005 prototype) | 22 April 2005 21:47:28 | Xbox | Third-Person Shooter | - |
| Advent Rising (Feb 16, 2005 prototype) | 16 February 2005 12:55:19 | Xbox | Third-Person Shooter | - |
| Adventure Island II (Prototype) | | NES | Platform | - |
| Adventure Island III (Prototype) | | NES | Action | ✓ |
| Adventure Time: The Secret of the Nameless Kingdom (Oct 28, 2014 prototype) | 28 October 2014 | | | - |
| Adventures in the Magic Kingdom (Early prototype) | | NES | Action | - |
| Adventures in the Magic Kingdom (Prototype) | | NES | Action | - |
| Adventures of Dr. Franken (Prototype) | | NES | Action | ✓ |
| Adventures to Go! (Jun 12, 2009 prototype) | 12 June 2009 | PlayStation Portable | Role-playing | - |
| Aegis Wing (Mar 20, 2007 prototype) | 20 March 2007 | Xbox 360 | Shoot Em Up | - |
| Aeon Flux (Aug 13, 2005 prototype) | 13 August 2005 18:11:28 | Xbox | Action-Adventure | - |
| Aeon Flux (Jun 27, 2005 prototype) | 27 June 2005 | PlayStation 2 | Action-adventure | - |
| Aeon Flux (Nov 18, 1996 prototype) | 18 November 1996 | PlayStation | Action | ✓ |
| Aeon Flux (Oct 11, 2005 prototype) | 11 October 2005 | PlayStation 2 | | - |
| Aero Elite: Combat Academy (Dec 12, 2002 prototype) | 12 December 2002 17:54:50 | PlayStation 2 | Flight Combat Simulator | - |
| Aero the Acro-Bat (Game Boy Advance prototype) | | Game Boy Advance | Platformer | - |
| Aero the Acro-Bat (PAL prototype) | | Sega Mega Drive | Platform | - |
| Aero the Acro-Bat 2 (Aug 8, 1994 prototype) | 8 August 1994 | SNES | Action | - |
| Aero-Cross (Nov 26, 2010 prototype) | 26 November 2010 | Xbox 360 | Racing | ✓ |
| AeroGauge (Japanese demo) | | Nintendo 64 | Racing | - |
| Afro Samurai (Dec 1, 2008 prototype) | 1 December 2008 | Xbox 360 | Action | - |
| Afro Samurai (Oct 30, 2008 prototype) | 30 October 2008 | Xbox 360 | Action | - |
| Aftershock (May 3, 1995 prototype) | 3 May 1995 15:04:20 | PlayStation | Shooter | - |
| Agaju: The Sacred Path of Treasure (Prototype) | | Gizmondo | Adventure | ✓ |
| Agartha (Apr 17, 2001 prototype) | 17 April 2001 | Dreamcast | Survival Horror | ✓ |
| Agartha (Apr 18, 2001 prototype) | 18 April 2001 00:23:42 | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 5, 2001 prototype) | 5 March 2001 16:34:14 | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 9, 2001 prototype) | 9 March 2001 | Dreamcast | Survival Horror | ✓ |
| Age of Booty (Jun 24, 2008 prototype) | 24 June 2008 | Xbox 360 | Real Time Strategy | - |
| Age of Booty (May 28, 2008 prototype) | 28 May 2008 | Xbox 360 | Real Time Strategy | - |
| Age of Empires (Aug 15, 1997 prototype) | 15 August 1997 | PC | | - |
| Age of Empires 2 - Age of Kings (Feb 22, 1999 prototype) | 22 February 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (Jul 17, 1998 prototype) | 17 July 1998 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (July 1, 1999 prototype) | 1 July 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 2, 1999 prototype) | 2 June 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 30, 1999 prototype) | 30 June 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (May 13, 1999 prototype) | 13 May 1999 | PC | RTS | - |
| Age of Empires: The Rise of Rome (Aug 5, 1998 prototype) | 5 August 1998 | PC | RTS | - |
| Age of Empires: The Rise of Rome (Sep 15, 1998 prototype) | 15 September 1998 | PC | RTS | - |
| Aggressive Inline (Aug 6, 2002 prototype) | 6 August 2002 | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Jul 29, 2002 prototype) | 29 July 2002 | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Mar 2, 2002 prototype) | 2 March 2002 | PlayStation 2 | Sports | - |
| Aggressive Inline (Mar 3, 2002 prototype) | 3 March 2002 | PlayStation 2 | Sports | - |
| Aidyn Chronicles: The First Mage (Apr 10, 2001 prototype) | 10 April 2001 14:55:18 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Dec 5, 2000 Prototype) | 5 December 2000 | Nintendo 64 | Action | - |
| Aidyn Chronicles: The First Mage (Feb 1, 2001 Debug) | January 2001 | Nintendo 64 | Role-playing Game | - |
| Aidyn Chronicles: The First Mage (Feb 10, 2000 prototype) | 10 February 2000 13:21:13 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Mar 2, 2001 prototype) | 2 March 2001 19:42:35 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (May 9, 2000 prototype) | 9 May 2000 07:45:51 | Nintendo 64 | Role playing | - |
| Air Fortress (Prototype) | | FDS | Shooter | ✓ |
| Air Sea Battle (Robert Coppock Demo) | | Atari 2600 | | - |
| Air Zonk (Prototype) | | TurboGrafx-16 | Platformer | - |
| AirBlade (Nov 8, 2001 prototype) | 8 November 2001 11:58:46 | PlayStation 2 | Sports - Inline | - |
| AirCars (Nov 14, 1994 prototype) | 14 November 1994 | Atari Jaguar | Action | - |
| AirForce Delta (Jun 18, 1999 prototype) | 18 June 1999 11:16:54 | Dreamcast | Flight Combat Simulator | - |
| AirForce Delta (Nov 30, 1999 prototype) | 30 November 1999 14:58:26 | Dreamcast | Flight Combat Simulator | - |
| AirMech Arena (Aug 15, 2014 prototype) | 15 August 2014 | Xbox 360 | Vehicular Combat | - |
| Airblade (Sep 16, 2001 prototype) | 16 September 2001 18:49:31 | PlayStation 2 | Sports | - |
| Airburst (Jul 13, 2008 prototype) | 13 July 2008 | Xbox 360 | Action | ✓ |
| Airlock (prototype) | | Atari 2600 | Action | - |
| Akira (Prototype) | | Sega Mega Drive | Action | ✓ |
| Akuji the Heartless (Oct 14, 1998 prototype) | 14 October 1998 11:28:52 | PlayStation | Action | - |
| Akuji: The Heartless (Nov 11, 1998 prototype) | 11 November 1998 | PlayStation | Action | - |
| Akuu Senki Raijin (Oct 14, 1987 prototype) | 14 October 1987 | FDS | Shoot 'Em Up | - |
| Aladdin (Chicago C.E.S demo) | 27 June 1993 | Sega Mega Drive | Platform | - |
| Aladdin (Dec 28, 1993 prototype) | 29 December 1993 11:11:18 | Game Gear | Action Platformer | - |
| Aladdin (Jan 11, 1994 prototype) | 9 January 1994 19:35:30 | Game Gear | Action Platformer | - |
| Aladdin (Jan 13, 1994 prototype) | 13 January 1994 18:05:22 | Game Gear | Action Platformer | - |
| Aladdin (Jan 24, 1994 prototype) | 24 January 1994 19:34:02 | Game Gear | Action Platformer | - |
| Aladdin (Jul 31, 1993 prototype) | 31 July 1993 17:46:24 | Sega Mega Drive | Platformer | - |
| Aladdin (SNES prototype) | | SNES | | - |
| Alan Wake: American Nightmare (May 18, 2011 prototype) | 18 May 2011 | Xbox 360 | Adventure | - |
| Alex Kidd: High-Tech World (Prototype) | | Sega Master System | Action | - |
| Alfred Chicken (Dec 3, 2001 prototype) | 3 December 2001 | PlayStation | Platform | - |
| Alfred Chicken (ECTS Show 1993 Prototype) | | | Platform | - |
| Alfred Chicken (Jan 25, 2002 prototype) | 25 January 2002 12:52:42 | PlayStation | Platformer | - |
| Alfred Chicken (Prototype) | | Game Boy | Platformer | - |
| Alias (Dec 12, 2003 prototype) | 12 December 2003 17:27:53 | PlayStation 2 | Action Adventure | - |
| Alias (Dec 8, 2003 prototype) | 8 December 2003 19:25:10 | PlayStation 2 | Action Adventure | - |
| Alias (Feb 6, 2004 prototype) | 6 February 2004 15:11:22 | Xbox | Action-Adventure | - |
| Alias (Jan 10, 2004 prototype) | 10 January 2004 13:46:45 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 12, 2004 prototype) | 12 January 2004 15:56:29 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 14, 2003 prototype) | 14 January 2003 12:46:10 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 11.29 prototype) | 24 January 2004 11:29:42 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 13.45 prototype) | 24 January 2004 13:45:06 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 Casino Scripts prototype) | 28 January 2004 16:08:56 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 prototype) | 28 January 2004 16:08:56 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 5, 2004 prototype) | 5 January 2004 15:48:28 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 11, 2003 prototype) | 11 November 2003 21:42:19 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 14, 2003 prototype) | 14 November 2003 17:57:44 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 17, 2003 prototype) | 17 November 2003 16:11:37 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 21, 2003 prototype) | 21 November 2003 16:18:50 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 25, 2003 prototype) | 25 November 2003 19:54:12 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 4, 2002 prototype) | 4 November 2002 19:13:28 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 11.53 prototype) | 5 November 2002 11:53:40 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 12.56 prototype) | 5 November 2002 12:56:24 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 10, 2003 prototype) | 10 October 2003 18:32:52 | Xbox | Action-Adventure | - |
| Alias (Oct 11, 2003 prototype) | 11 October 2003 10:29:54 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 19, 2003 prototype) | 19 October 2003 13:38:10 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 3, 2003 prototype) | 3 October 2003 16:05:23 | PlayStation 2 | Action Adventure | - |
| Alias (Sep 25, 2003 prototype) | 25 September 2003 16:32:01 | PlayStation 2 | Action Adventure | - |
| Alice: Madness Returns (Apr 4, 2011 prototype) | 4 April 2011 | Xbox 360 | Action-adventure | - |
| Alice: Madness Returns (Nov 17, 2010 Prototype) | 17 November 2010 | Xbox 360 | Platformer, Action-Adventure | - |
| Alice: Madness Returns (Sep 16, 2010 Prototype) | 16 September 2010 | Xbox 360 | Platformer, Action-Adventure | - |
| Alien 3 (SNES Prototype) | | SNES | Action | - |
| Alien Breed 2: Assault (Jan 11, 2010 prototype) | 11 January 2010 | Xbox 360 | Shooter | - |
| Alien Breed 3: Descent (Jul 16, 2010 prototype) | 16 July 2010 | Xbox 360 | Shooter | - |
| Alien Front (Nov 27, 2004 prototype) | 27 November 2004 | N-Gage | Action | ✓ |
| Alien Hominid (Sep 24, 2004 prototype) | 24 September 2004 08:40:10 | PlayStation 2 | Shoot-em-Up | - |
| Alien Hominid HD (Feb 8, 2007 prototype) | 8 February 2007 | Xbox 360 | Shooter | - |
| Alien Olympics 2044 AD (Prototype) | | Game Boy | Sports | - |
| Alien Resurrection (Apr 11, 2000 prototype) | 11 April 2000 05:25:30 | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 19, 1999 prototype) | 19 August 1999 16:30:58 | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 8, 2000 prototype) | 8 August 2000 01:43:58 | PlayStation | First Person Shooter | - |
| Alien Resurrection (Dec 2, 1998 prototype) | 2 December 1998 01:02:39 | PlayStation | First-person shooter | - |
| Alien Resurrection (Dec 21, 1999 prototype) | 21 December 1999 12:27:00 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 2, 2000 prototype) | 2 February 2000 03:07:08 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 26, 2000 prototype) | 26 February 2000 03:08:58 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 4, 2000 prototype) | 4 February 2000 03:41:52 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jan 5, 2000 prototype) | 5 January 2000 10:35:10 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 14, 1999 Prototype) | 14 July 1999 | PlayStation | | - |
| Alien Resurrection (Jul 19, 2000 prototype) | 19 July 2000 11:45:14 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 29, 2000 prototype) | 29 July 2000 01:45:40 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 31, 2000 prototype) | 31 July 2000 02:18:24 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 4, 2000 prototype) | 4 July 2000 02:31:26 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 5, 2000 prototype) | 5 July 2000 10:29:48 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 7, 2000 prototype) | 7 July 2000 03:41:50 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 24, 2000 prototype) | 24 March 2000 03:15:16 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 7, 2000 prototype) | 7 March 2000 02:54:34 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 9, 2000 prototype) | 9 March 2000 01:38:42 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 12, 1999 prototype) | 12 May 1999 04:37:02 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 26, 2000 prototype) | 26 May 2000 03:42:44 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 30, 2000 prototype) | 30 May 2000 05:38:46 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 6, 2000 prototype) | 6 May 2000 03:00:44 | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 2, 1998 prototype) | 2 November 1998 15:57:56 | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 26, 1999 Prototype) | 26 November 1999 | PlayStation | Third Person Shooter | - |
| Alien Resurrection (Oct 19, 1998 prototype) | 19 October 1998 13:26:22 | PlayStation | First-person shooter | - |
| Alien Resurrection (Oct 4, 2000 prototype) | 4 October 2000 02:37:32 | PlayStation | First-person shooter | - |
| Alien Resurrection (Sep 1, 2000 prototype) | 1 September 2000 12:15:18 | PlayStation | First-person shooter | - |
| Alien Syndrome (May 21, 2007 prototype) | 21 May 2007 | Nintendo Wii | Action | - |
| Alien Syndrome (Prototype) | | Sega Master System | Action | - |
| Alien Trilogy (Jul 23, 1996 prototype) | 23 July 1996 | Sega Saturn | First-person shooter | - |
| Alien vs Predator (Apr 8, 1994 prototype) | 8 April 1994 | Atari Jaguar | FPS | - |
| Alien vs Predator (Aug 18, 1993 prototype) | 18 August 1993 | Atari Jaguar | FPS | - |
| Alien vs Predator (Oct 13, 1993 prototype) | 13 October 1993 | Atari Jaguar | FPS | - |
| Aliens (Jan 22, 2004 prototype) | 22 January 2004 10:12:05 | PlayStation 2 | Tech demo | ✓ |
| Aliens (Prototype) | | FDS | Action | ✓ |
| Aliens Versus Predator: Extinction (May 2, 2003 prototype) | 2 May 2003 01:45:01 | Xbox | Real-Time Strategy | - |
| Aliens vs Predator (Jan 29, 1999 prototype) | 29 January 1999 | PC | Shooter | - |
| Aliens vs. Predator (Dec 15, 2009 prototype) | 15 December 2009 | Xbox 360 | First-person shooter | - |
| Aliens vs. Predator (May 26, 2009 prototype) | 26 May 2009 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Feb 11, 2011 prototype) | 11 February 2011 02:33:15 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Feb 5, 2011 prototype) | 5 February 2011 02:32:04 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Feb 6, 2011 prototype) | 6 February 2011 02:32:36 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Feb 8, 2011 prototype) | 8 February 2011 02:33:03 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Feb 9, 2011 prototype) | 9 February 2011 05:00:30 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Jul 19, 2011 prototype) | 19 July 2011 15:33:30 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Jun 14, 2011 prototype) | 14 June 2011 09:21:43 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Mar 10, 2011 prototype) | 10 March 2011 03:58:05 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Mar 24, 2011 prototype) | 24 March 2011 04:52:52 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (May 12, 2011 prototype) | 12 May 2011 05:09:02 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (May 4, 2011 prototype) | 4 May 2011 | Xbox 360 | FPS | - |
| All Kamen Rider: Rider Generation (Jun 2, 2011 prototype) | 2 June 2011 | Nintendo DS | | - |
| All Round Hunter (Apr 16, 2010 prototype) | 16 April 2010 | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Apr 20, 2010 prototype) | 20 April 2010 | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Mar 5, 2010 prototype) | 5 March 2010 | Xbox 360 | Hunting/Fishing | - |
| All Star Soccer (May 26, 1997 prototype) | 26 May 1997 | PlayStation | | - |
| All Star Tennis 2000 (Localization prototype) | | Game Boy Color | Sports | - |
| All Star Tennis 2000 (Prototype) | | Game Boy Color | Sports | - |
| All-Star Baseball 2001 (Broken prototype) | | Nintendo 64 | Sports | - |
| All-Star Baseball 2001 (Prototype) | | Nintendo 64 | Sports | - |
| All-Star Baseball 2003 featuring Derek Jeter (Jan 21, 2002 prototype) | 21 January 2002 11:15:18 | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 00.08 prototype) | 16 December 2002 00:08:07 | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 prototype) | 16 December 2002 14:37:16 | PlayStation 2 | Sports - Baseball | - |
| All-Star Baseball 2004 featuring Derek Jeter (Jan 20, 2003 prototype) | 20 January 2003 10:49:15 | Xbox | Sports | - |
| All-Star Baseball 2005 featuring Derek Jeter (Feb 4, 2004 prototype) | 4 February 2004 23:20:43 | Xbox | Sports | - |
| Alligator People (prototype) | | Atari 2600 | | ✓ |
| Alone In The Dark: The New Nightmare (Jan 31, 2001 prototype) | 31 January 2001 | PlayStation | Adventure | - |
| Alone in the Dark: One-Eyed Jack's Revenge (Mar 21, 1996 prototype) | 21 March 1996 19:35:31 | Sega Saturn | Survival Horror | - |
| Alone in the Dark: The New Nightmare (Apr 9, 2001 prototype) | 9 April 2001 03:56:32 | Dreamcast | Action-adventure | - |
| Alone in the Dark: The New Nightmare (February 21, 2001 prototype) | 21 February 2001 | Game Boy Color | Action-adventure | - |
| Alone in the Dark: The New Nightmare (May 23, 2001 prototype) | 23 May 2001 21:16:16 | Dreamcast | Survival | - |
| Alone in the Dark: The New Nightmare (Prototype) | | Game Boy Color | Survival Horror | - |
| Alpha Beam with Ernie (Dec 22, 1982 prototype) | 22 December 1982 | Atari 2600 | Edutainment | - |
| Alpha Beam with Ernie (May 5, 1983 prototype) | 5 May 1983 | Atari 2600 | Edutainment | - |
| Alpha Protocol (Mar 25, 2010 prototype) | 25 March 2010 | Xbox 360 | Action role-playing | - |
| Alpha Protocol (May 4, 2009 prototype) | 4 May 2009 | Xbox 360 | Action role-playing | - |
| Alter Echo (Jun 4, 2003 prototype) | 4 June 2003 04:46:36 | PlayStation 2 | Action Adventure | - |
| Altered Space: A 3-D Alien Adventure (Feb 15, 1991 prototype) | 15 February 1991 | Game Boy | Adventure | - |
| Amazing Spider-Man vs The Kingpin (Jun 2, 1993 prototype) | 2 June 1993 21:03:58 | Sega CD | Action | - |
| America's Army: Rise of a Soldier (Oct 5, 2005 prototype) | 5 October 2005 16:30:19 | Xbox | First Person Shooter | - |
| America's Army: Rise of a Soldier (Sep 9, 2005 prototype) | 9 September 2005 00:46:55 | Xbox | First Person Shooter | - |
| American Hero CD (Prototype) | | Atari Jaguar CD | FMV | ✓ |
| American Idol (Mar 10, 2004 prototype) | 10 March 2004 15:38:40 | Xbox | Music, Rhythm | ✓ |
| Amparo Museum (Jul 24, 1992 prototype) | 24 July 1992 09:50:43 | Philips CD-i | Reference | - |
| Amped (Oct 17, 2001 prototype) | 17 October 2001 22:53:05 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 12, 2003 prototype) | 12 September 2003 03:06:42 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 22, 2003 prototype) | 22 September 2003 12:37:17 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 30, 2003 prototype) | 30 September 2003 13:29:03 | Xbox | Extreme sports | - |
| Amplitude (Feb 7, 2003 prototype) | 7 February 2003 21:12:22 | PlayStation 2 | Rhythm | - |
| Amplitude (May 27, 2003 prototype) | 27 May 2003 11:49:56 | PlayStation 2 | Music | - |
| Anachronox (May 13, 2001 Prototype) | 13 May 2001 | PC | RPG | - |
| Ancients of Ooga (April 27, 2010 Prototype.) | 27 April 2010 | Xbox 360 | Puzzle | - |
| Andre Agassi Tennis (Prototype) | | Game Gear | Sports - Tennis | - |
| Androman on the Moon (prototype) | | Atari 2600 | | ✓ |
| Angels 2: Holy Night (Prototype) | | TurboGrafx-CD | Adventure | ✓ |
| Animal Color Cross (Prototype) | | Nintendo DS | | - |
| Animaniacs (Jun 11, 1994 prototype) | 11 June 1994 | SNES | Platformer | - |
| Anomaly: Warzone Earth (Nov 25, 2011 prototype) | 25 November 2011 | Xbox 360 | Real Time Strategy | - |
| Antz (Prototype) | | Game Boy Color | Action | - |
| Ape Escape 2 (Apr 8, 2003 prototype) | 8 April 2003 21:59:30 | PlayStation 2 | Platformer | - |
| Ape Escape 2 (Oct 28, 2002 prototype) | 28 October 2002 00:53:30 | PlayStation 2 | Action | - |
| Apocalypse (Jul 22, 1998 prototype) | 22 July 1998 13:12:42 | PlayStation | Third-person shooter | - |
| Apocalypse II (Oct 28, 1997 prototype) | 28 October 1997 09:24:52 | SNES | Shooter | ✓ |
| Apocalypse II (Prototype) | | SNES | Shooter | ✓ |
| Aqua GT (Nov 16, 2000 prototype) | 16 November 2000 14:42:36 | PlayStation | Racing | - |
| Aquaventure (Aug 12, 1983 prototype) | | Atari 2600 | | ✓ |
| Ar tonelico II: Melody of Metafalica (Sep 22, 2008 prototype) | 22 September 2008 19:23:10 | PlayStation 2 | Role-playing | - |
| Ar tonelico: Melody of Elemia (Sep 13, 2006 prototype) | 13 September 2006 10:41:58 | PlayStation 2 | Role-playing | - |
| Arabian Knights: Sabaku no Seirei Ou (Prototype) | | SNES | Role Playing | - |
| Arc the Lad Collection: The Making of Arc the Lad (Nov 20, 2001 prototype) | 20 November 2001 | PlayStation | RPG | - |
| Arc the Lad: End of Darkness (Apr 22, 2005 prototype) | 22 April 2005 12:59:04 | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: End of Darkness (Jan 11, 2005 prototype) | 11 January 2005 16:00:02 | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: Twilight of the Spirits (Apr 1, 2003 prototype) | 1 April 2003 21:03:53 | PlayStation 2 | Turn Based Tactics | - |
| Arcade Classics (Sep 4, 1996 prototype) | 4 September 1996 | Philips CD-i | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Apr 11, 1997 prototype) | 11 April 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 10, 1997 prototype) | 10 February 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 11, 1997 prototype) | 11 February 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Nov 10, 1996 prototype) | 10 November 1996 00:00:00 | PlayStation | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 2 (Jan 8, 1998 prototype) | 8 January 1998 21:35:42 | PlayStation | Compilation | - |
| ArcadeSample (Oct 11, 2007 prototype) | 11 October 2007 | Xbox 360 | Sample | - |
| ArcadeSample (Oct 29, 2007 prototype) | 29 October 2007 | Xbox 360 | Arcade | ✓ |
| Arcana (prototype) | | SNES | Dungeon crawl | - |
| Arcania: Gothic 4 (Mar 30, 2010 prototype) | 30 March 2010 | Xbox 360 | Action role-playing | - |
| Arcanum: Of Steamworks & Magick Obscura (Mar 14, 2001 demo) | 14 March 2001 | PC | | - |
| Arcanum: Of Steamworks & Magick Obscura (Oct 9, 2000 prototype) | 9 October 2000 | PC | RPG | - |
| Arcatera: The Dark Brotherhood (Feb 24, 2000 prototype) | 24 February 2000 | PC | | - |
| Archimedean Dynasty (Oct 11, 1996 prototype) | 11 October 1996 | PC | | - |
| Archimedean Dynasty (Oct 16, 1996 prototype) | 16 October 1996 | PC | | - |
| Arctic Thunder (Aug 10, 2001 prototype) | 10 August 2001 08:24:50 | PlayStation 2 | Racing | - |
| Area 51 (Aug 4, 2004 prototype) | 4 August 2004 16:20:15 | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Feb 25, 2005 prototype) | 25 February 2005 22:42:15 | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Jul 11, 1996 prototype) | 11 July 1996 15:02:40 | Sega Saturn | Rail Shooter | - |
| Area 51 (Jul 23, 2004 prototype) | 23 July 2004 20:17:31 | Xbox | First-Person Shooter, Survival Horror | - |
| Area 51 (Jun 19, 1996 prototype) | 19 June 1996 15:39:54 | Sega Saturn | Rail Shooter | - |
| Area 51 (Mar 9, 2005 prototype) | 9 March 2005 14:31:02 | PlayStation 2 | First-person shooter | - |
| Area 51 (Nov 6, 1996 prototype) | 6 November 1996 10:10:04 | Sega Saturn | Rail Shooter | - |
| Arena Football 95 (Prototype) | | Atari Jaguar | Sports | ✓ |
| Aretha II: Ariel no Fushigi na Tabi (Early prototype) | | SNES | Role Playing | - |
| Aretha II: Ariel no Fushigi na Tabi (Prototype) | | SNES | Role Playing | - |
| Ariel the Little Mermaid (Oct 10, 1992 build) | 10 October 1992 10:27:54 | Sega Mega Drive | Adventure | - |
| Arkadian Warriors (Oct 6, 2007 prototype) | 6 October 2007 | Xbox 360 | Action Aventure | - |
| Arkanoid Live! (Dec 23, 2008 prototype) | 23 December 2008 16:22:20 | Xbox 360 | Puzzle | - |
| Arkyology (prototype) | | Atari 2600 | | ✓ |
| Armed (Jan 22, 1997 prototype) | 22 January 1997 12:40:30 | Sega Saturn | Action | ✓ |
| Armed and Dangerous (Jul 16, 2003 prototype) | 16 July 2003 17:32:21 | Xbox | Action-Adventure | - |
| Armed and Dangerous (Oct 13, 2003 prototype) | 13 October 2003 18:29:03 | Xbox | Shooter | - |
| Armed and Dangerous (Sep 3, 2003 prototype) | 3 September 2003 00:12:24 | Xbox | Action-Adventure | - |
| Armored Core (Jul 3, 1997 prototype) | 3 July 1997 22:40:54 | PlayStation | Vehicular Combat | - |
| Armored Core 2 (Aug 29, 2000 prototype) | 29 August 2000 | PlayStation 2 | Action | - |
| Armored Core 2 (Nov 13, 2000 prototype) | 13 November 2000 18:54:12 | PlayStation 2 | Action | - |
| Armored Core 2: Another Age (Jun 8, 2001 prototype) | 8 June 2001 03:59:28 | PlayStation 2 | Action | - |
| Armorines: Project S.W.A.R.M. (Oct 20, 1999 prototype) | 20 October 1999 | PlayStation | | - |
| Army Men: Green Rogue (Feb 15, 2001 prototype) | 15 February 2001 11:20:16 | PlayStation 2 | Action | - |
| Army Men: Sarge's Heroes 2 (Oct 19, 2000 prototype) | 19 October 2000 15:24:06 | PlayStation | Third Person Shooter | - |
| Army Men: World War (Mar 14, 2000 prototype) | 14 March 2000 14:56:38 | PlayStation | Third Person Shooter | - |
| Army of Two (Oct 7, 2007 prototype) | 7 October 2007 | Xbox 360 | Third-person shooter | - |
| Army of Two (Sep 13, 2007 prototype) | 13 September 2007 | Xbox 360 | Third-person shooter | - |
| Army of Two: The Devil's Cartel (Jan 25, 2013 Prototype) | 25 January 2013 14:18:44 | Xbox 360 | Third Person Shooter | - |
| Army of Two: The Devil's Cartel (Jan 31, 2013 prototype) | 31 January 2013 | Xbox 360 | Third-person shooter | - |
| Arnold Palmer Tournament Golf (Mar 22, 1990 prototype) | 22 March 1990 10:33:32 | Sega Mega Drive | Sports | - |
| Around Hollywood (Apr 18, 1995 prototype) | 18 April 1995 | Philips CD-i | FMV | ✓ |
| Art Alive (Sep 20, 1991 build) | 20 September 1991 10:19:06 | Sega Mega Drive | Studio | - |
| Art of Fighting (Aug 1, 1994 prototype) | 1 August 1994 13:42:44 | Sega Mega Drive | Fighter (2D) | - |
| Art of Fighting (Jul 11, 1994 prototype) | 12 July 1994 01:13:38 | Sega Mega Drive | Fighter (2D) | - |
| Arthur and the Invisibles (Mar 19, 2007 prototype) | 19 March 2007 15:00:00 | PlayStation Portable | Adventure, Arcade | - |
| Arthur and the Minimoys (Jan 17, 2007 prototype) | 17 January 2007 | PlayStation Portable | | - |
| Arx Fatalis (Jul 11, 2003 prototype) | 11 July 2003 | Xbox | Action role-playing game | - |
| Arx Fatalis (Sep 29, 2003 prototype) | 29 September 2003 | Xbox | | - |
| Ashen (May 1, 2004 prototype) | 1 May 2004 | N-Gage | Action | - |
| Asphalt - Urban (Sep 27, 2004 prototype) | 27 September 2004 | N-Gage | Racing | - |
| Assassin's Creed (Oct 16, 2007 prototype) | 16 October 2007 | Xbox 360 | Action | - |
| Assassin's Creed III (Sep 25, 2012 prototype) | 25 September 2012 | Xbox 360 | Action | - |
| Assassin's Creed III: Liberation (Sep 9, 2012 Prototype) | 9 September 2012 | | Action-adventure, stealth | - |
| Assassin's Creed: Brotherhood (Aug 16, 2010 prototype) | 16 August 2010 05:26:32 | Xbox 360 | Action Adventure, Stealth | - |
| Assault Heroes (Mar 30, 2007 prototype) | 30 March 2007 | Xbox 360 | Shoot Em Up | - |
| Assault Heroes 2 (Mar 4, 2008 prototype) | 4 March 2008 | Xbox 360 | Shoot Em Up | - |
| Assault Rigs (Jan 8, 1996 prototype) | 8 January 1996 14:57:58 | PlayStation | Vehicular Combat | - |
| Assault Rigs (Oct 10, 1995 prototype) | 10 October 1995 15:37:54 | PlayStation | Vehicular Combat | - |
| Assault: Retribution (Sep 3, 1998 prototype) | 3 September 1998 17:15:48 | PlayStation | Action | - |
| Jun 22, 2000 Asset Disc | | Dreamcast | | - |
| Agetec PS2 Graphic Assets | | PlayStation 2 | | - |
| Character Renders | | | | - |
| Midway E3 2005 Disc | | | | - |
| Famitsu July Special Edition - E3 Special News! 2004 | | | | - |
| Print Preview Assets | | | | - |
| Eidos Assets | | | Action Adventure | - |
| Artwork Disc | | Nintendo 64 | | - |
| NINTENDO ツブヨリディスク GAME RUSH! 2002 Autumn → Winter DVD | | | | - |
| Asset CD | | | | - |
| Nintendo DREAM - Wii E3 2006 Report | | | | - |
| PlayStation E3 2000 Press Disc 1 | | PlayStation | | - |
| Press Kit | | | | - |
| Press Kit | | | | - |
| Press Kit | | PlayStation 2 | | - |
| PAL Press CD | | PlayStation | | - |
| Level Pack | | Game Boy Color | | ✓ |
| PR Asset Discs | | | | - |
| Press Assets 2003 | | | | - |
| Asterix & Obelix XXL (Feb 25, 2004 prototype) | 25 February 2004 | Nintendo GameCube | Action | - |
| Asterix & Obelix XXL (Prototype A) | | Game Boy Advance | Action | - |
| Asterix & Obelix XXL (Prototype B) | | Game Boy Advance | Action | - |
| Asterix (Aug 1, 1983 prototype) | | Atari 2600 | | - |
| Asterix (Feb 16, 1994 prototype) | 16 February 1994 11:05:14 | Game Gear | Action Platformer | - |
| Asterix (Feb 22, 1994 prototype) | 22 February 1994 09:14:06 | Game Gear | Action Platformer | - |
| Asterix (Jan 25, 1994 prototype) | 25 January 1994 16:53:24 | Game Gear | Action Platformer | - |
| Asterix (Jul 27, 1983 prototype) | | Atari 2600 | | - |
| Asterix (Localization prototype) | | Game Boy | Platformer | - |
| Asterix (Mar 11, 1993 prototype) | 11 March 1993 | SNES | Action | - |
| Asterix (Mar 15, 1994 prototype) | 15 March 1994 11:54:48 | Game Gear | Action Platformer | - |
| Asterix (Mar 16, 1994 prototype) | 16 March 1994 16:58:18 | Game Gear | Action Platformer | - |
| Asterix (Mar 3, 1994 prototype) | 3 March 1994 10:02:44 | Game Gear | Action Platformer | - |
| Asterix (Prototype A) | | Game Boy | Action | - |
| Asterix (Prototype B) | | Game Boy | Action | - |
| Asteroids (Atari 7800 prototype) | | Atari 7800 | Shoot 'em up | - |
| Asteroids (Game Boy Prototype) | | Game Boy | Arcade | - |
| Asteroids 2000 (Jul 20, 1994 prototype) | 20 July 1994 | Atari Jaguar | Shooter | ✓ |
| Astro Boy: The Video Game (Jul 27, 2009 prototype) | 27 July 2009 | Nintendo Wii | Action | - |
| Astro Chase (Oct 25, 1983 prototype) | | Atari 2600 | | ✓ |
| Astro Warrior & Pit Pot (Prototype) | | Sega Master System | Sports | - |
| AstroPop (Feb 22, 2006 prototype) | 22 February 2006 | Xbox 360 | Puzzle | - |
| Astrocade (Aug 1, 1994 prototype) | 1 August 1994 | Sega Saturn | Puzzle | ✓ |
| Astérix & Obélix XXL 2: Mission: Las Vegum (Feb 25, 2005 prototype) | 25 February 2005 02:53:23 | PlayStation 2 | Action | - |
| Atari Classics Evolved (Oct 1, 2007 prototype) | 1 October 2007 | PlayStation Portable | Compilation | - |
| Atari Karts (Prototype) | | Atari Jaguar | Racing | - |
| Atari Masterpieces Volume 1 (Aug 3, 2005 prototype) | 3 August 2005 | N-Gage | Compilation | - |
| Atari Masterpieces Volume 1 (Sep 20, 2005 prototype) | 20 September 2005 | N-Gage | Compilation | - |
| Atelier Iris 2: The Azoth of Destiny (Feb 7, 2006 prototype) | 7 February 2006 14:44:55 | PlayStation 2 | Role-playing | - |
| Atelier Iris 2: The Azoth of Destiny (Mar 6, 2006 prototype) | 6 March 2006 18:15:35 | PlayStation 2 | Role-playing | - |
| Atelier Iris: Eternal Mana (Apr 8, 2005 prototype) | 8 April 2005 23:15:11 | PlayStation 2 | Role-playing | - |
| Athens 2004 (Apr 14, 2004 prototype) | 14 April 2004 21:28:49 | PlayStation 2 | Sports - Athletics | - |
| Atlantis no Nazo (Prototype) | | NES | Action | - |
| Atlantis: The Last Resort (Sep 18, 1996) | 18 September 1996 | Philips CD-i | FMV | ✓ |
| Atmosfear (Jul 12, 1994 prototype) | 12 July 1994 | SNES | Action | ✓ |
| Atom Smasher (prototype) | | Atari 2600 | | ✓ |
| Atomic Betty (Prototype) | | Game Boy Advance | Action | - |
| Austin Powers: Why Make Millions... (Prototype) | 2 September 2000 | Game Boy Color | Compilation | ✓ |
| Austin Powers: Yeah, Baby, Yeah! (Prototype) | 11 September 2000 | Game Boy Color | Compilation | ✓ |
| Australian Rugby League (Prototype) | | Sega Mega Drive | Sports - Rugby | - |
| Auto Destruct (Oct 15, 1997 prototype) | 15 October 1997 14:16:42 | PlayStation | Vehicular Combat | - |
| Auto Modellista (Dec 10, 2002 prototype) | 10 December 2002 01:08:08 | PlayStation 2 | Racing | - |
| Auto Modellista (Jan 27, 2003 prototype) | 27 January 2003 05:26:54 | PlayStation 2 | Racing | - |
| Avatar Superstars Poker (Jul 31, 2010 prototype) | 31 July 2010 | Xbox 360 | Poker | ✓ |
| Avatar: The Last Airbender - The Burning Earth (Jul 20, 2007 prototype) | 20 July 2007 | Xbox 360 | Action-adventure | - |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype A) | | Sega Mega Drive | Action | - |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype B) | | Sega Mega Drive | Action | - |
| Awesome Possum Kicks Dr. Machino's Butt! (Jul 12, 1993 prototype) | 12 July 1993 | Sega Mega Drive | Platform | - |
| Awesomenauts (Nov 9, 2011 prototype) | 9 November 2011 | Xbox 360 | Real Time Strategy | - |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | 8 October 1991 | Game Gear | Role Playing | - |
| Axel & Pixel (Oct 3, 2009 prototype) | 3 October 2009 | Xbox 360 | Adventure | - |
| Ayrton Senna's Super Monaco GP II (Prototype) | | Game Gear | Racing | - |
| Azure Dreams (Apr 23, 1998 prototype) | 23 April 1998 00:00:00 | PlayStation | Role Playing | - |
| Azure Dreams (Jan 13, 1998 prototype) | 13 January 1998 17:21:30 | PlayStation | Role Playing | - |
| B-17: Fortress in the Sky (Prototype) | | Nintendo DS | Air combat | - |
| B-Boy (May 29, 2006 prototype) | 29 May 2006 | PlayStation 2 | Music | - |
| B.O.B. (Prototype) | | Sega Mega Drive | Action | - |
| BCG XBLA Test (Jul 7, 2010 utility) | | Xbox 360 | | ✓ |
| BIONICLE: The Legend of Mata Nui (Jul 24, 2001 prototype) | 24 July 2001 08:22:00 | PC | Action | ✓ |
| BMX 4 (Nov 8, 2002 prototype) | 8 November 2002 17:02:26 | Xbox | | - |
| BMX XXX (Oct 29, 2002 prototype) | 29 October 2002 16:59:04 | PlayStation 2 | Sports - Biking | - |
| BMX XXX (Oct 9, 2002 prototype) | 9 October 2002 04:58:14 | PlayStation 2 | Sports - Biking | - |
| Baby Boom (Aug 11, 1994 prototype) | 11 August 1994 21:54:54 | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 3, 1994 prototype) | 3 June 1994 19:14:18 | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 6, 1994 prototype) | 6 June 1994 18:02:48 | Sega Mega Drive | Misc | ✓ |
| Baby's Day Out (Game Boy Prototype) | | Game Boy | | ✓ |
| Baby's Day Out (Game Boy prototype) | | Game Boy | Puzzle | ✓ |
| Baby's Day Out (NAPALM prototype) | | Sega Mega Drive | Action | ✓ |
| Baby's Day Out (SNEAKERS prototype) | | Sega Mega Drive | Action | ✓ |
| Back To Bed (July 20, 2015 Prototype) | 20 July 2015 | | Puzzle Video Game, Indie game, Action game, Casual game | - |
| Back to Stone (Prototype) | | Game Boy Advance | Action | - |
| Backbreaker (Nov 11, 2009 prototype) | 11 November 2009 | Xbox 360 | Sports | - |
| Backbreaker (Nov 27, 2009 prototype) | 27 November 2009 | Xbox 360 | Sports | - |
| Backstreet Billiards (Sep 7, 1998 prototype) | 7 September 1998 17:16:54 | PlayStation | Billiards | - |
| Backyard Wrestling 2: There Goes the Neighborhood (Jul 27, 2004 prototype) | 27 July 2004 04:17:05 | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 13, 2003 prototype) | 13 July 2003 20:47:10 | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 14, 2003 prototype) | 14 July 2003 00:15:06 | Xbox | Wrestling | - |
| Baja: Edge of Control (Aug 3, 2008 prototype) | 3 August 2008 | Xbox 360 | Racing | - |
| Baja: Edge of Control (May 27, 2008 prototype) | 27 May 2008 | Xbox 360 | Racing | - |
| Baku Baku Animal: World Zookeeper Contest (Apr 26, 1996 prototype) | 26 April 1996 10:44:08 | Sega Saturn | Puzzle | - |
| Bakuryu (Nov 27, 1999 prototype) | 27 November 1999 15:23:58 | PlayStation | Sports - Kayaking | - |
| Baldur's Gate (Oct 4, 2000 prototype) | 4 October 2000 08:07:44 | PlayStation | Roleplaying | ✓ |
| Baldur's Gate: Dark Alliance (Jun 22, 2002 prototype) | 22 June 2002 00:51:44 | Xbox | Action-RPG | - |
| Baldur's Gate: Dark Alliance (Oct 14, 2002 prototype) | 14 October 2002 | Nintendo GameCube | Role Playing | - |
| Baldur's Gate: Dark Alliance (Oct 7, 2001 prototype) | 7 October 2001 16:14:12 | PlayStation 2 | Role-playing | - |
| Ball Breakers (Oct 24, 2000 prototype) | 24 October 2000 | Dreamcast | Action | ✓ |
| Ball Busters (Prototype) | | Gizmondo | Action | ✓ |
| Ballz 3D: Fighting at Its Ballziest (Japanese Prototype) | | SNES | Puzzle | - |
| Ballz 3D: Fighting at Its Ballziest (Prototype) | | SNES | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (June prototype) | June 1994 | Sega Mega Drive | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (September build) | September 1994 | Sega Mega Drive | Fighting | - |
| Banana (Jun 30, 1986 prototype) | 30 June 1986 | NES | Puzzle | - |
| BandFuse: Rock Legends (Sep 30, 2013 prototype) | 30 September 2013 | Xbox 360 | Music | - |
| Bang Bang Racing (Oct 26, 2011 prototype) | 26 October 2011 | Xbox 360 | Racing | - |
| Bangai-O (Apr 14, 2000 prototype) | 14 April 2000 15:37:16 | Dreamcast | Shooter | - |
| Banjo-Kazooie: Grunty's Revenge (0.37.08 prototype) | | Game Boy Advance | Platformer | - |
| Banjo-Kazooie: Grunty's Revenge (0.40.58 debug prototype) | | Game Boy Advance | Platformer | - |
| Banjo-Pilot (Sep 29, 2004 prototype) | | Game Boy Advance | Racing | - |
| Banjo-Pilot (Voxel prototype) | | Game Boy Advance | Racing | - |
| Bankshot Billiards 2 (Mar 1, 2007 prototype) | 1 March 2007 | Xbox 360 | Billiards | - |
| Barbarian (Jul 24, 2001 prototype) | 24 July 2001 16:00:32 | PlayStation 2 | Action | - |
| Barbie Super Model (Jun 30, 1993 prototype) | 30 June 1993 | Sega Mega Drive | Adventure | - |
| Barbie Super Model (Prototype) | | Game Gear | Action | - |
| Barbie: Game Girl (Prototype) | | Game Boy | Action | - |
| Barbie: Groom and Glam Pups (Prototype) | | Nintendo DS | | - |
| Barbie: Jet, Set & Style (Prototype) | | Nintendo DS | | - |
| Barbie: Vacation Adventure (Prototype) | | Sega Mega Drive | Adventure | ✓ |
| Barbie: Vacation Adventure (SNES Prototype) | | SNES | Adventure | ✓ |
| Barkley Shut Up and Jam! (Early prototype) | | Atari Jaguar | Sports | ✓ |
| Barkley Shut Up and Jam! (Prototype) | | Atari Jaguar | Sports | ✓ |
| Barkley Shut Up and Jam! 2 (Prototype) | | Sega Mega Drive | Sports - Basketball | - |
| Barney's Hide & Seek Game (Sep 18, 1993 build) | 18 September 1993 19:01:44 | Sega Mega Drive | Adventure | - |
| Barnyard (Prototype) | | Game Boy Advance | Action | - |
| Bashi Bazook: Morphoid Masher (prototype) | | NES | Action-adventure | - |
| Basketball Nightmare (Prototype A) | | Sega Master System | Action | - |
| Basketball Nightmare (Prototype B) | | Sega Master System | Action | - |
| Bass Landing (Aug 5, 1999 prototype) | 5 August 1999 00:00:00 | PlayStation | Fishing | - |
| Bass Masters 2000 (Prototype) | | Nintendo 64 | Fishing | - |
| Bastion (Jul 22, 2009 prototype) | 22 July 2009 | Xbox 360 | Action RPG | - |
| Batman (Later Prototype) | | NES | Action | - |
| Batman (Older Beta) | | NES | Action | - |
| Batman (Software Creations prototype) | | SNES | Beat 'em up | ✓ |
| Batman Begins (May 1, 2005 prototype) | 1 May 2005 13:26:36 | Nintendo GameCube | Action | - |
| Batman Returns (Apr 23, 1993 prototype) | 23 April 1993 16:34:29 | Sega CD | Action | - |
| Batman Returns (PAL prototype) | | NES | Action | - |
| Batman Returns (Prototype A) | | SNES | Action | - |
| Batman Returns (Prototype B) | | SNES | Action | - |
| Batman: Arkham Asylum (prototype) | | Nintendo DS | Action-adventure | ✓ |
| Batman: Arkham Origins (Jul 11, 2013 Multiplayer Prototype) | 11 July 2013 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins Blackgate (May 30, 2013 Prototype) | 30 May 2013 | | Action-adventure, beat 'em up, stealth, Metroidvania | - |
| Batman: Dark Tomorrow (Aug 25, 2002 prototype) | 25 August 2002 | Nintendo GameCube | Action-adventure | - |
| Batman: Dark Tomorrow (Feb 26, 2003 prototype) | 26 February 2003 | Xbox | Action-adventure | - |
| Batman: Return of the Joker (Prototype) | | NES | Action | - |
| Batman: Revenge of the Joker (Prototype) | | SNES | Action | ✓ |
| Batman: Rise of Sin Tzu (Aug 15, 2003 prototype) | 15 August 2003 07:55:56 | PlayStation 2 | Beat-em-Up | - |
| Batman: Vengeance (Aug 29, 2001 prototype) | 29 August 2001 15:37:20 | PlayStation 2 | Action | - |
| Battle Arena Toshinden URA (Nov 7, 1996 prototype) | 7 November 1996 21:53:18 | Sega Saturn | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 1, 2004 prototype) | 1 August 2004 19:10:46 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 13, 2004 prototype) | 13 August 2004 17:05:11 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 19, 2004 prototype) | 19 August 2004 19:26:07 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 27, 2004 prototype) | 27 August 2004 17:48:35 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 31, 2004 prototype) | 31 August 2004 08:32:58 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Jul 19, 2004 prototype) | 19 July 2004 20:06:58 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 10, 2004 prototype) | 10 September 2004 07:23:25 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 13, 2004 prototype) | 13 September 2004 12:11:25 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 17, 2004 prototype) | 17 September 2004 03:09:53 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 8, 2004 prototype) | 8 September 2004 08:09:08 | PlayStation 2 | Fighting | - |
| Battle Blaze (Prototype B) | | SNES | Fighting | - |
| Battle Fantasia (Apr 9, 2008 prototype) | 9 April 2008 | Xbox 360 | Fighting | - |
| Battle Mania (May 28, 1991 prototype) | 28 May 1991 15:22:58 | Sega Mega Drive | Shooter | - |
| Battle Master: Kyuukyoku no Senshi-tachi (Prototype) | | SNES | Fighting | - |
| Battle Ships (Prototype) | | Game Boy | Action | - |
| Battle Squadron (Jan 18, 1991 prototype) | 18 January 1991 14:24:36 | Sega Mega Drive | Shooter | - |
| Battle Wings (Prototype) | | Sega Master System | Shooters | - |
| Battle vs. Chess (Feb 6, 2012 prototype) | 6 February 2012 | PlayStation Portable | Board game | ✓ |
| Battle: Los Angeles (Feb 14, 2011 prototype) | 14 February 2011 | Xbox 360 | Shooter | - |
| Battle: Los Angeles (Feb 28, 2011 Prototype) | | Xbox 360 | FPS | - |
| Battle: Los Angeles (Jan 31, 2011 prototype) | 31 January 2011 | Xbox 360 | Shooter | - |
| BattleBots (Alpha 4.6 prototype) | | Nintendo GameCube | Action | ✓ |
| BattleSport (May 11, 1995 prototype) | 11 May 1995 | 3DO | Sports | - |
| Battlecorps (Feb 11, 1994 prototype) | 11 February 1994 16:07:39 | Sega CD | Action | - |
| Battlecruiser 3000AD (Nov 8, 1995 prototype) | 8 November 1995 14:39:32 | PC | Space trading and combat simulator | - |
| Battlefield 1943 (Jun 24, 2009 prototype) | 24 June 2009 | Xbox 360 | FPS | - |
| Battlefield 1943 (Jun 3, 2009 prototype) | 3 June 2009 | Xbox 360 | FPS | - |
| Battlefield 1943 (May 13, 2009 prototype) | 13 May 2009 | Xbox 360 | Shooter | - |
| Battlefield 2: Modern Combat (Aug 15, 2005 prototype) | 15 August 2005 18:48:05 | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Aug 17, 2005 prototype) | 17 August 2005 17:52:59 | Xbox | Action-RPG | - |
| Battlefield 2: Modern Combat (Feb 14, 2006 prototype) | 14 February 2006 | Xbox 360 | FPS | - |
| Battlefield 2: Modern Combat (Jan 20, 2005 prototype) | 20 January 2005 | PlayStation 2 | First Person Shooter | - |
| Battlefield 3 (Sep 7, 2011 prototype) | 7 September 2011 | Xbox 360 | FPS | - |
| Battlefield 4 (Jun 03, 2013 Multiplayer Alpha) | 3 June 2013 | Xbox 360 | FPS | - |
| Battlefield 4 (Jun 06, 2013 Alpha Trial) | 6 June 2013 02:00:54 | Xbox 360 | FPS | - |
| Battlefield Hardline (Aug 24, 2014 prototype) | 24 August 2014 | PlayStation 3 | First-person shooter | - |
| Battlefield: Bad Company 2 (Jan 18, 2010 prototype) | 18 January 2010 | Xbox 360 | First-person shooter | - |
| Battlestar Galactica (Aug 22, 2003 prototype) | 22 August 2003 16:17:08 | Xbox | Space Flight Simulator | - |
| Battlestar Galactica (Aug 8, 2007 prototype) | 8 August 2007 | Xbox 360 | Action | - |
| Battlestar Galactica (Sep 21, 2007 prototype) | 21 September 2007 | Xbox 360 | Action | - |
| Battlestations: Pacific (Mar 12, 2009 prototype) | 12 March 2009 | Xbox 360 | Action | - |
| Battletech: Gray Death Legion (Jan 5, 1995 prototype) | 5 January 1995 14:06:36 | Sega CD | Shooter | ✓ |
| Battletoads (Game Boy Advance) (prototype) | | Game Boy Advance | Beat 'em up, platformer | ✓ |
| Battletoads in Battlemaniacs (prototype) | | SNES | Beat 'em up, platformer | - |
| Battlezone (Feb 18, 1998 prototype) | 18 February 1998 | PC | | - |
| Battlezone (May 12, 1983 prototype) | | Atari 2600 | | - |
| Battlezone (May 2, 1983 prototype) | | Atari 2600 | | - |
| Battlezone (Oct 2, 2007 prototype) | 2 October 2007 | Xbox 360 | Action | - |
| Bayonetta (May 24, 2009 prototype) | 24 May 2009 | Xbox 360 | Action | - |
| Beach Volleyball (Apr 21, 2000 prototype) | 21 April 2000 | PlayStation | | - |
| Beach'n Ball (Nov 21, 2000 prototype) | 21 November 2000 | Game Boy Color | Sports - Volleyball | - |
| Bear Game (prototype) | | Atari 2600 | | ✓ |
| Beast Wrestler (Sep 13, 1991 prototype) | 13 September 1991 15:13:32 | Sega Mega Drive | Fighting | - |
| Beastball (Prototype) | | Sega Mega Drive | Action | ✓ |
| Beat Down: Fists of Vengeance (Jul 2, 2005 prototype) | 2 July 2005 14:24:10 | PlayStation 2 | Beat-em-Up | - |
| Beat Down: Fists of Vengeance (Jul 3, 2005 prototype) | 3 July 2005 19:37:02 | Xbox | Action-RPG, Beat-Em-Up | - |
| Beat Down: Fists of Vengeance (May 11, 2005 prototype) | 11 May 2005 23:44:51 | PlayStation 2 | Beat-em-Up | - |
| Beat'n Groovy (May 13, 2008 prototype) | 13 May 2008 08:04:33 | Xbox 360 | Rhythm | - |
| Beaterator (May 13, 2009 prototype) | 13 May 2009 11:42:26 | PlayStation Portable | Music | - |
| Beauty Guide (Apr 4, 1995 prototype) | 4 April 1995 | Philips CD-i | FMV | ✓ |
| Beavis and Butt-Head (Game Gear Prototype) | | Game Gear | Action | - |
| Bee Movie Game (Jul 27, 2007 prototype) | 27 July 2007 | Xbox 360 | Action, Adventure | - |
| Beethoven's 2nd (Sep 13, 1993 prototype) | 13 September 1993 | SNES | Action | - |
| Beethoven's 2nd: The Quest for Pups (Prototype) | | Sega Mega Drive | Action | ✓ |
| Beijing 2008 (Mar 27, 2008 prototype) | 27 March 2008 | Xbox 360 | Sports | - |
| Bejeweled 2 Deluxe (Nov 8, 2005 prototype) | 8 November 2005 | Xbox 360 | Puzzle | - |
| Ben 10 Alien Force: The Rise of Hex (Mar 8, 2010 prototype) | 8 March 2010 23:55:18 | Xbox 360 | Platformer | - |
| Berenstain Bears (Aug 1, 1994 prototype) | 1 August 1994 21:59:02 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype A) | 11 August 1994 11:48:12 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype) | 11 August 1994 07:14:54 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 12, 1994 prototype) | 12 August 1994 19:55:02 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 13, 1994 prototype) | 13 August 1994 20:40:22 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 14, 1994 prototype) | 14 August 1994 09:43:42 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 19, 1994 prototype) | 19 August 1994 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 20, 1994 prototype) | 20 August 1994 09:32:14 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 24, 1994 prototype) | 23 August 1994 22:37:30 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 25, 1994 prototype B) | 25 August 1994 11:28:36 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype B) | 26 August 1994 15:26:56 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype) | 26 August 1994 07:30:32 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 27, 1994 prototype) | 27 August 1994 18:44:58 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 15, 1994 prototype B) | 15 July 1994 16:24:24 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 21, 1994 prototype) | 21 July 1994 09:15:14 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 22, 1994 prototype) | 22 July 1994 22:54:10 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 27, 1994 prototype) | 27 July 1994 22:15:56 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jun 28, 1994 prototype) | 28 June 1994 14:34:10 | Game Gear | Action Platformer | - |
| Berenstain Bears' A School Day (Dec 20, 1994 prototype) | 20 December 1994 16:01:36 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 13, 1995 prototype) | 13 January 1995 16:03:16 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 16, 1995 prototype) | 16 January 1995 18:14:54 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 26, 1995 prototype) | 26 January 1995 14:10:12 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 27, 1995 prototype) | 27 January 1995 22:16:34 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 30, 1995 prototype) | 30 January 1995 13:02:26 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 31, 1995 prototype) | 31 January 1995 16:07:20 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 6, 1995 prototype) | 6 January 1995 16:55:26 | Sega Pico | Educational | - |
| Berserk: Millennium Falcon Hen Seima Senki no Shou (Jul 12, 2004 prototype) | 12 July 2004 10:28:00 | PlayStation 2 | Action | - |
| Best of the Best: Championship Karate (Prototype A) | | SNES | Fighting | - |
| Best of the Best: Championship Karate (Prototype B) | | SNES | Fighting | - |
| Beyblade V-Force: Ultimate Blader Jam (Prototype) | | Game Boy Advance | Action | - |
| Beyond (Sep 12, 2005 prototype) | 12 September 2005 | Xbox | Third-person shooter | ✓ |
| Beyond Divinity (Feb 26, 2004 demo) | 26 February 2004 | PC | RPG | - |
| Beyond Good & Evil (Aug 14, 2003 prototype) | 14 August 2003 15:58:16 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Oct 13, 2003 prototype) | 13 October 2003 | PlayStation 2 | | - |
| Beyond Good & Evil (Sep 15, 2003 prototype) | 15 September 2003 05:05:54 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Sep 9, 2003 prototype) | 9 September 2003 09:06:55 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil HD (Jan 13, 2011 prototype) | 13 January 2011 | Xbox 360 | Action Adventure | - |
| Beyond Good & Evil HD (Jan 20, 2011 prototype) | 20 January 2011 | Xbox 360 | Action Adventure | - |
| Beyond Oasis (Apr 1994 prototype) | April 1994 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Nov 1, 1994 prototype) | 1 November 1994 16:05:02 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Nov 15, 1994 prototype) | 17 November 1994 10:00:00 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Oct 17, 1994 prototype) | 19 October 1994 10:22:48 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Oct 4, 1994 prototype) | 4 October 1994 20:09:48 | Sega Mega Drive | Role-Playing | - |
| Big Air (Jun 15, 1998 prototype) | 15 June 1998 13:37:16 | PlayStation | Snowboarding | - |
| Big Bang Pro Wrestling (Prototype) | | Neo Geo Pocket Color | Wrestling | - |
| Big Bang Show (May 30, 1994) | 30 May 1994 | Philips CD-i | FMV | ✓ |
| Big Bird's Egg Catch (Dec 8, 1982 prototype) | | Atari 2600 | Educational | - |
| Big Bird's Egg Catch (May 17, 1983 prototype) | | Atari 2600 | Educational | - |
| Big Bird's Egg Catch (May 2, 1983 prototype) | 2 May 1983 | Atari 2600 | Educational | - |
| Big Bumpin' (Sep 15, 2006 prototype) | 15 September 2006 18:07:11 | Xbox | Racing | - |
| Big Mutha Truckers (Apr 29, 2003 prototype) | 29 April 2003 11:53:31 | Xbox | Racing | - |
| Big Sky Trooper (May 23, 1995 prototype) | 23 May 1995 | SNES | Action | - |
| Big Top Circus (Prototype) | | Nintendo Wii | | ✓ |
| Bill's Tomato Game (Prototype) | | Sega Mega Drive | Puzzle | ✓ |
| Bio Force Ape (Prototype) | 1991 | NES | Action Beat 'em up,Platform | ✓ |
| Bio Force Ape (US Prototype) | | NES | Action | ✓ |
| Bio-Hazard Battle (Prototype) | | Sega Mega Drive | Shooting | - |
| BioShock 2 (Dec 16, 2009 prototype) | 16 December 2009 | Xbox 360 | First-person shooter | - |
| BioShock 2 (Nov 30, 2009 prototype) | 30 November 2009 | Xbox 360 | First-person shooter | - |
| Biohazard (Aug 4, 1995 prototype) | 4 August 1995 18:31:10 | PlayStation | Survival Horror | - |
| Biohazard (Jan 31, 1996 prototype) | 31 January 1996 | PlayStation | Survival Horror | - |
| Biohazard (Oct 4, 1995 prototype) | 4 October 1995 13:03:42 | PlayStation | Survival Horror | - |
| Biohazard 2 (Aug 6, 1997 demo) | 6 August 1997 16:00:00 | PlayStation | Demo | - |
| Biohazard 2 (Nov 6, 1996 prototype) | 6 November 1996 13:10:10 | PlayStation | Survival Horror | - |
| Biohazard 2 (Oct 31, 1997 prototype) | 31 October 1997 10:12:52 | PlayStation | Survival Horror | - |
| Biohazard Outbreak (Dec 19, 2003 prototype) | 19 December 2003 01:22:57 | PlayStation 2 | Survival Horror | - |
| Biohazard Outbreak (Nov 26, 2003 prototype) | 26 November 2003 09:35:39 | PlayStation 2 | Survival Horror | - |
| Bionic Breakthrough (Jun 22, 1984 prototype) | | Atari 2600 | | ✓ |
| Bionic Breakthrough (prototype) | | Atari 2600 | | ✓ |
| Bionic Commando (Oct 6, 2008 prototype) | 6 October 2008 | Xbox 360 | Action-adventure, third-person shooter | - |
| Bionic Commando Rearmed 2 (Oct 27, 2010 prototype) | 27 October 2010 | Xbox 360 | Action & Adventure | - |
| Bionic Commando: Rearmed (Jun 19, 2008 prototype) | 19 June 2008 | Xbox 360 | Platformer | - |
| Bionicle 2 (Jan 21, 2004 Tech Demo) | 21 January 2004 | Xbox | Action | ✓ |
| Bionicles Heroes (Prototype) | | Nintendo DS | Action | - |
| Black & Bruised (Oct 18, 2002 prototype) | 18 October 2002 02:20:06 | PlayStation 2 | Boxing - Martial Arts | - |
| Black (Aug 16, 2005 prototype) | 16 August 2005 00:40:55 | PlayStation 2 | First-person shooter | - |
| Black (Dec 5, 2005 demo) | 5 December 2005 08:35:58 | PlayStation 2 | First-person shooter | - |
| Black (Nov 25, 2005 demo) | 25 November 2005 07:25:24 | PlayStation 2 | First-person shooter | - |
| Black 2 (Feb 13, 2007 prototype) | 13 February 2007 11:08:07 | Xbox 360 | First-person shooter | ✓ |
| Black 2 (Jun 29, 2006 prototype) | 29 June 2006 15:38:39 | Xbox 360 | First-person shooter | ✓ |
| Black 9 (Jan 13, 2004 prototype) | 13 January 2004 | Xbox | | ✓ |
| Black Dawn (Aug 2, 1996 prototype) | 2 August 1996 15:42:32 | PlayStation | Flight Combat Simulator | - |
| Black Dawn (Jul 15, 1996 prototype) | 15 July 1996 20:12:00 | PlayStation | Flight Combat Simulator | - |
| Black Hole Assault (Oct 1, 1992 prototype) | 1 October 1992 18:37:04 | Sega CD | Action | - |
| Black Ice / White Noise (Prototype) | | Atari Jaguar CD | Action | ✓ |
| Black Knight Sword (Feb 28, 2012 Prototype) | 28 February 2012 | Xbox 360 | Action Adventure | - |
| Black Knight Sword (Feb 29, 2012 prototype) | 29 February 2012 | Xbox 360 | Action | - |
| BlackFire (Jul 6, 1995 prototype) | 6 July 1995 16:23:19 | Sega Saturn | Flight Combat Simulator | - |
| BlackSite: Area 51 (Aug 15, 2007 prototype) | 15 August 2007 22:40:01 | Xbox 360 | FPS | - |
| BlackThorne (Incomplete Prototype) | | Sega 32X | Action | - |
| Blackwater (Aug 17, 2011 prototype) | 17 August 2011 | Xbox 360 | First-person shooter | - |
| Blade Eagle (Prototype) | | Sega Master System | Shooter | - |
| Blade Force (Aug 8, 1995 prototype) | 8 August 1995 | 3DO | Shooter | - |
| Blade Force (Jul 14, 1995 prototype) | 14 July 1995 | 3DO | Shooter | - |
| Blade II (Jul 4, 2002 prototype) | 4 July 2002 00:03:51 | Xbox | Beat-Em-Up | - |
| Blade Kitten (Jun 24, 2010 prototype) | 24 June 2010 | Xbox 360 | Adventure | - |
| Blade Warrior (Prototype) | | Game Boy | Action | ✓ |
| Bladestorm: The Hundred Years' War (Sep 6, 2007 prototype) | 6 September 2007 | Xbox 360 | RTT | - |
| Blast Chamber (Jul 10, 1996 prototype) | 10 July 1996 19:41:34 | PlayStation | Action | - |
| Blaster Master (May 20, 1988 prototype) | 20 May 1988 | NES | Action | - |
| Blaster Master 2 (Late NTSC Beta) | 15 April 1993 | Sega Mega Drive | Run And Gun | - |
| Blaster Master Boy (Prototype) | | Game Boy | Action | - |
| Blasto (Mar 5, 1998 prototype) | 5 March 1998 11:31:48 | PlayStation | Third Person Shooter | - |
| BlazBlue: Calamity Trigger (Apr 23, 2009 prototype) | 23 April 2009 | Xbox 360 | Fighting | - |
| BlazBlue: Continuum Shift II (Feb 28, 2011 prototype) | 28 February 2011 | PlayStation Portable | Fighting | - |
| Blazing Birds (Jun 29, 2008 prototype) | 29 June 2008 | Xbox 360 | Sports | - |
| Bleemcast! (prototype) | | Dreamcast | Application | ✓ |
| Blinx: The Time Sweeper (Aug 12, 2002 prototype) | 12 August 2002 05:44:54 | Xbox | Platform | - |
| Blitz: The League (Aug 26, 2005 prototype) | 26 August 2005 21:06:20 | Xbox | Sports - Football | - |
| Blitz: The League (Sep 8, 2005 prototype) | 8 September 2005 00:30:19 | PlayStation 2 | Sports - Football | - |
| Block Out (Prototype) | | NES | Puzzle | ✓ |
| Bloctrix (Nov 24, 1998 prototype) | 24 November 1998 10:05:28 | PC | Puzzle | ✓ |
| Bloctrix (Nov 5, 1998 prototype) | 5 November 1998 09:27:38 | PC | Puzzle | ✓ |
| Blood (Feb 17, 1996 prototype) | 17 February 1996 | PC | Shooter | - |
| Blood (Jan 2, 1997 demo) | 2 January 1997 | PC | Shooter | - |
| Blood (Jul 22, 1996 prototype) | 22 July 1996 | PC | | - |
| Blood Knights (Feb 13, 2013 prototype) | 13 February 2013 | Xbox 360 | RPG | - |
| Blood Lines (Jun 21, 1998 prototype) | 21 June 1998 | PlayStation | Action | - |
| Blood Lines (May 12, 1997 prototype) | 12 May 1997 00:27:38 | PlayStation | Action | - |
| Blood Omen: Legacy of Kain (Jul 10, 1997 prototype) | 10 July 1997 | PC | Action-adventure | - |
| Blood Omen: Legacy of Kain (Jul 12, 1996 prototype) | 12 July 1996 | PlayStation | Action-adventure | - |
| Blood Omen: Legacy of Kain (Jul 15, 1996 prototype) | 15 July 1996 | PlayStation | Action-adventure | - |
| Blood Omen: Legacy of Kain (Mar 10, 1997 demo) | 10 March 1997 | PC | Action-adventure | - |
| Blood Omen: Legacy of Kain (Sep 16, 1996 prototype) | 16 September 1996 | PlayStation | Action-adventure | - |
| BloodRayne (Aug 5, 2002 prototype) | 5 August 2002 15:58:51 | Xbox | Hack-And-Slash | - |
| BloodRayne (Oct 22, 2002 prototype) | 22 October 2002 | PC | Action | - |
| BloodRayne 2 (Sep 16, 2004 prototype) | 16 September 2004 13:09:10 | PlayStation 2 | Action | - |
| BloodRayne: Betrayal (Jul 21, 2011 prototype) | 21 July 2011 | Xbox 360 | Action | - |
| Bloodshot (Mar 9, 1995 prototype) | 9 March 1995 11:56:18 | Sega CD | FPS | ✓ |
| Bloody Good Time (Jul 25, 2010 prototype) | 25 July 2010 | Xbox 360 | First Person Shooter | - |
| Bloody Roar 4 (Aug 30, 2003 prototype) | 30 August 2003 23:09:55 | PlayStation 2 | Fighting | - |
| Bloody Roar 4 (Jul 15, 2003 prototype) | 15 July 2003 17:42:38 | PlayStation 2 | Fighting | - |
| Bloody Roar 4 (Sep 9, 2003 prototype) | 9 September 2003 | PlayStation 2 | Fighting | - |
| Bloody Roar: Primal Fury (Jan 8, 2002 prototype) | 8 January 2002 | Nintendo GameCube | Fighting | - |
| Blue Angelo: Angels from the Shrine (Early prototype) | | Game Boy Advance | Action | ✓ |
| Blue Angelo: Angels from the Shrine (Late prototype) | | Game Boy Advance | Action | ✓ |
| Blue Lightning Tour 1 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 2 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 3 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 4 (Apr 10, 1995 prototype) | 10 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blue Lightning Tour 5 (Apr 7, 1995 prototype) | 7 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blue Lightning Tour 6 (Apr 11, 1995 prototype) | 11 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blueprint (prototype) | | Atari 2600 | | - |
| Blues Brothers 2000 (Jan 15, 2000 prototype) | 15 January 2000 | Nintendo 64 | Action | - |
| Blues Brothers 2000 (Jun 30, 2000 prototype) | 30 June 2000 | Nintendo 64 | Action | - |
| Blur (Feb 8, 2010 prototype) | 8 February 2010 | Xbox 360 | Racing | - |
| Bobby's World (Prototype) | | SNES | Action | ✓ |
| Body Count (Feb 28, 1994 prototype U) | 28 February 1994 11:23:52 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Feb 8, 1994 prototype) | 28 February 1994 11:23:52 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Jan 27, 1994 prototype) | 27 January 1994 16:33:54 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 3, 1994 prototype) | 3 March 1994 14:12:32 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 8, 1994 prototype A) | 8 March 1994 13:31:38 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 8, 1994 prototype) | 8 March 1994 13:31:38 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 9, 1994 prototype) | 9 March 1994 11:09:32 | Sega Mega Drive | Shooter | ✓ |
| Bodycount (Jul 9, 2011 prototype) | 9 July 2011 | Xbox 360 | First-person shooter | - |
| Boggle (Aug 7, 1978 prototype) | | Atari 2600 | | ✓ |
| Bomb Jack (Prototype A) | | Game Boy | Action | - |
| Bomb Jack (Prototype B) | | Game Boy | Action | - |
| Bomberman (May 27, 2004 prototype) | 27 May 2004 | N-Gage | Action, Maze | - |
| Bomberman Fantasy Race (Aug 21, 1998 prototype) | 21 August 1998 11:17:12 | PlayStation | Racing | - |
| Bomberman Land (Nov 6, 2007 prototype) | 6 November 2007 | Nintendo Wii | Action | - |
| Bomberman Live (Jun 18, 2007 prototype) | 18 June 2007 | Xbox 360 | Action | - |
| Bomberman Live: Blastfest (May 27, 2010 prototype) | 27 May 2010 | Xbox 360 | | - |
| Bomberman Online (Feb 7, 2001 prototype) | 7 February 2001 15:15:32 | Dreamcast | Multiplayer | - |
| Bomberman Online (Sep 8, 2001 prototype) | 8 September 2001 09:06:30 | Dreamcast | Multiplayer | - |
| Bonk's Adventure (Prototype) | | Game Boy | Adventure | - |
| Bonk: Brink of Extinction (Aug 5, 2010 prototype) | 5 August 2010 01:33:57 | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (Dec 10, 2010 prototype) | 10 December 2010 00:24:47 | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (May 13, 2010 prototype) | 13 May 2010 03:27:14 | Xbox 360 | Platformer | ✓ |
| Bonkers (Aug 25, 1994 prototype) | 25 August 1994 06:47:02 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Aug 29, 1994 prototype) | 29 August 1994 02:16:08 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Aug 4, 1994 prototype) | 4 August 1994 11:46:28 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Mar 28, 1994 prototype) | 5 April 1994 07:00:02 | Sega Mega Drive | Action Platformer | - |
| Bonkers (May 3, 1994 prototype) | 6 May 1994 19:11:48 | Sega Mega Drive | Action Platformer | - |
| Bonkers Wax Up! (Dec 11, 1994 prototype) | 11 December 1994 19:45:16 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 12, 1994 prototype D) | 12 December 1994 18:40:02 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 3, 1994 prototype) | 3 December 1994 22:59:16 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 5, 1994 prototype) | 5 December 1994 09:00:36 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 7, 1994 prototype C) | 7 December 1994 23:52:50 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 8, 1994 prototype B) | 8 December 1994 18:49:32 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 8, 1994 prototype C) | 8 December 1994 21:45:34 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 15, 1994 prototype) | 15 November 1994 09:47:12 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 21, 1994 prototype) | 21 November 1994 09:07:40 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 23, 1994 prototype) | 23 November 1994 14:31:38 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 26, 1994 prototype) | 26 November 1994 12:19:56 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 29, 1994 prototype) | 29 November 1994 21:17:10 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Oct 31, 1994 prototype) | 31 October 1994 16:42:22 | Game Gear | Action Platformer | - |
| Boogerman: A Pick and Flick Adventure (Apr, 1996 Prototype) | April 1996 | NES | Platform Game | - |
| Boogie (Jul 2, 2007 prototype) | 2 July 2007 | Nintendo Wii | Rhythm | - |
| Boogie (Jun 26, 2007 prototype) | 26 June 2007 | Nintendo Wii | Rhythm | - |
| Boogie Bunnies (Nov 16, 2007 prototype) | 16 November 2007 | Xbox 360 | Puzzle | - |
| Boogie Bunnies (Nov 20, 2007 prototype) | 20 November 2007 | Xbox 360 | Puzzle | - |
| Boom Boom Rocket (Jul 19, 2007 prototype) | 19 July 2007 | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (Jun 17, 2007 prototype) | 17 June 2007 | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (Mar 23, 2007 prototype) | 23 March 2007 | Xbox 360 | Rhythm | - |
| Borderlands (Aug 14, 2009 prototype) | 14 August 2009 | Xbox 360 | Action role-playing, First-person shooter | - |
| Bottom of the 9th '97 (Apr 18, 1997 prototype) | 18 April 1997 07:42:08 | PlayStation | Sports - Baseball | - |
| Bottom of the 9th '97 (Jul 25, 1997 prototype) | 25 July 1997 00:00:00 | PlayStation | Sports - Baseball | - |
| Bottom of the 9th (Jul 10, 1996 prototype) | 10 July 1996 15:49:46 | Sega Saturn | Sports - Baseball | - |
| Bouncin' Baby Bunnies (prototype) | | Atari 2600 | | ✓ |
| Bounty Arms (Jan 30, 1995 prototype) | 30 January 1995 | PlayStation | Action | ✓ |
| Bounty Sword (May 16, 1995 prototype) | 16 May 1995 | SNES | Role Playing | - |
| Boxing Legends of the Ring (Prototype) | | SNES | Sports - Boxing | - |
| Braid (Apr 21, 2008 prototype) | 21 April 2008 | Xbox 360 | Action | - |
| Brain Challenge (Dec 7, 2007 prototype) | 7 December 2007 | Xbox 360 | Edutainment | - |
| Brain Dead 13 (Jun 11, 1996 prototype) | 11 June 1996 | Philips CD-i | FMV | ✓ |
| Brave Fencer Musashi (Aug 31, 1998 prototype) | 31 August 1998 12:56:08 | PlayStation | Action RPG | - |
| Brave Fencer Musashi (Sep 8, 1998 prototype) | 8 September 1998 12:00:00 | PlayStation | Action RPG | - |
| Brave: A Warrior's Tale (Apr 3, 2009 prototype) | 3 April 2009 | Nintendo Wii | Action-adventure | - |
| Brave: A Warrior's Tale (Feb 19, 2009 prototype) | 19 February 2009 | Xbox 360 | Action-adventure | - |
| Brave: A Warrior's Tale (Sep 30, 2008 prototype) | 30 September 2008 | Xbox 360 | Action-adventure | - |
| Brave: The Search for Spirit Dancer (May 9, 2005 prototype) | 9 May 2005 21:43:27 | PlayStation 2 | Platforming | - |
| Breach (May 12, 2010 prototype) | 12 May 2010 | Xbox 360 | First Person Tactical | - |
| Breach (Prototype) | | Sega Mega Drive | Action | ✓ |
| BreakThru! (Game Gear Prototype) | | Game Gear | Puzzle | ✓ |
| Breakdown (Dec 14, 2003 prototype) | 14 December 2003 07:51:37 | Xbox | First-Person Shooter, Action-Adventure | - |
| Breakneck (Feb 5, 1998 prototype) | 5 February 1998 01:01:06 | PlayStation | Racing | ✓ |
| Breakout 2000 (Prototype) | | Atari Jaguar | Puzzle | - |
| Breath of Fire II (Prototype) | | SNES | RPG | - |
| Breath of Fire IV (May 1, 2000 E3 demo) | 1 May 2000 | PlayStation | Role-playing | - |
| Breath of Fire V: Dragon Quarter (Oct 24, 2002 prototype) | 24 October 2002 10:33:54 | PlayStation 2 | Role-playing | - |
| Brett Hull Hockey (Prototype) | | Atari Jaguar | Sports | ✓ |
| Brett Hull NHL Hockey (Prototype) | | Atari Jaguar CD | Sports - Hockey | - |
| Broken Helix (Apr 15, 1997 prototype) | 15 April 1997 22:44:24 | PlayStation | Action Adventure | - |
| Broken Helix (Apr 22, 1997 prototype) | 22 April 1997 20:20:08 | PlayStation | Action Adventure | - |
| Broken Helix (Jan 13, 1997 prototype) | 13 January 1997 13:12:18 | PlayStation | Action Adventure | - |
| Broken Helix (Oct 7, 1996 prototype) | 7 October 1996 15:08:06 | PlayStation | Action Adventure | - |
| Broken Sword: The Shadow of the Templars (Oct 1, 1997 prototype) | 1 October 1997 16:27:10 | PlayStation | Action Adventure | - |
| Brothers in Arms: Road to Hill 30 (Feb 15, 2005 prototype) | 15 February 2005 16:29:48 | Xbox | First-person shooter | - |
| Brothers in Arms: Road to Hill 30 (Nov 18, 2004 prototype) | 18 November 2004 03:15:24 | Xbox | First-person shooter | - |
| Brothers: A Tale of Two Sons (Apr 2, 2013 prototype) | 2 April 2013 | Xbox 360 | Action Adventure | - |
| Brothers: A Tale of Two Sons (Apr 3, 2013 prototype) | 3 April 2013 | Xbox 360 | Action Adventure | - |
| Brunswick Pro Bowling (April 2nd, 2007 prototype) | 2 April 2007 14:42:46 | PlayStation 2 | Sports | - |
| Brute Force (Apr 10, 2003 prototype) | 10 April 2003 00:02:08 | Xbox | Third-Person Shooter | - |
| Bubble Bobble (Game Gear Prototype) | | Game Gear | Puzzle | - |
| Bubble Bobble II (Dec 13, 1993 prototype) | 13 December 1993 15:50:00 | Arcade | Puzzle | - |
| Bubble Bobble II (Jan 30, 1997 prototype) | 30 January 1997 00:30:38 | PlayStation | Puzzle | ✓ |
| Bubble Bobble Neo! (Apr 9, 2009 prototype) | 9 April 2009 03:52:46 | Xbox 360 | Puzzle | - |
| Bubble Game (Apr 22, 2008 prototype) | 22 April 2008 | Xbox 360 | Puzzle | - |
| Bubble Ghost (Prototype) | | Game Boy | Puzzle | - |
| Bubble and Squeak (PAL prototype) | | Sega Mega Drive | Platform | - |
| Bubsy 3D (Mar 13, 1997 prototype) | 13 March 1997 11:15:18 | PlayStation | Platformer | - |
| Bubsy in Claws Encounters of the Furred Kind (Prototype A) | | SNES | Platformer | - |
| Bubsy in Claws Encounters of the Furred Kind (Prototype B) | | SNES | Platformer | - |
| Budokan - The Martial Spirit (Sep 25, 1990 prototype) | 25 September 1990 19:09:38 | Sega Mega Drive | Sports | - |
| Buffy the Vampire Slayer (Apr 2, 2002 prototype) | 2 April 2002 15:50:28 | Xbox | Beat-Em-Up | - |
| Buffy the Vampire Slayer (Jun 25, 2002 prototype) | 25 June 2002 23:49:50 | Xbox | Beat-Em-Up | - |
| Buffy the Vampire Slayer: Chaos Bleeds (Jul 4, 2003 prototype) | 4 July 2003 02:18:06 | PlayStation 2 | Beat-em-Up | - |
| Bug Bash (Mar 23, 2007 prototype) | 23 March 2007 | Xbox 360 | Arcade | ✓ |
| Bug Blasters: The Exterminators (Jan 23, 1995 prototype) | 23 January 1995 16:12:35 | Sega CD | Shoot-'em-Up | ✓ |
| Bug Too! (Aug 12, 1996 prototype) | 12 August 1996 15:53:30 | Sega Saturn | Platformer | - |
| Bug Too! (Nov 8, 1996 prototype) | 8 November 1996 01:14:22 | Sega Saturn | Platformer | - |
| Bug! (Jun 14, 1995 prototype) | 14 June 1995 15:48:47 | Sega Saturn | Platformer | - |
| Bugs Bunny & Taz: Time Busters (Aug 13, 2000 prototype) | 13 August 2000 22:42:56 | PlayStation | Platformer | - |
| Bugs Bunny (Aug 4, 1983 prototype) | 4 August 1983 | Atari 2600 | | ✓ |
| Bugs Bunny (Jun 20, 1983 prototype) | | Atari 2600 | | ✓ |
| Bujingai: The Forsaken City (Nov 2, 2003 prototype) | 2 November 2003 | PlayStation 2 | | - |
| Buku Sudoku (Dec 27, 2007 prototype) | 27 December 2007 | Xbox 360 | Puzzle | - |
| Bullet Witch (Jan 9, 2007 Prototype) | 9 January 2007 22:30:17 | Xbox 360 | Third Person Shooter | - |
| Bullet Witch (Nov 1, 2006 Prototype) | 1 November 2006 23:41:04 | Xbox 360 | Third Person Shooter | - |
| Bulletstorm (Dec 20, 2010 Prototype) | 20 December 2010 15:53:14 | Xbox 360 | FPS | - |
| Bully: Scholarship Edition (Debug Build) | | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Jan 11, 2008 prototype) | 11 January 2008 | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Late Build) | | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Nov 13, 2007 prototype) | 13 November 2007 | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Nov 16, 2007 prototype) | 16 November 2007 | Nintendo Wii | Action-Adventure | - |
| BurgerTime: World Tour (Jul 7, 2011 prototype) | 7 July 2011 | Xbox 360 | Action | - |
| Burn Out (Prototype) | 7 January 1995 | Atari Jaguar | Racing | - |
| Burning Fists: Force Striker (Dec 7, 1993 prototype) | 7 December 1993 09:12:08 | Sega CD | Action | ✓ |
| Burning Rangers (Dec 1, 1997 prototype) | | Sega Saturn | Action | - |
| Burning Rangers (Jan 3, 1998 prototype) | | Sega Saturn | Action | - |
| Burnout (Jan 3, 2002 prototype) | 3 January 2002 | PlayStation 2 | Racing | - |
| Burnout (Mar 6, 2002 prototype) | 6 March 2002 | Nintendo GameCube | Racing | - |
| Burnout 2: Point of Impact (Aug 31, 2002 22.44.32 prototype) | 31 August 2002 22:44:32 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Aug 31, 2002 prototype) | 31 August 2002 | PlayStation 2 | | - |
| Burnout 2: Point of Impact (Aug 5, 2002 prototype) | 5 August 2002 18:20:32 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Aug 6, 2002 demo) | 6 August 2002 13:00:34 | PlayStation 2 | | - |
| Burnout 2: Point of Impact (Jul 27, 2002 prototype) | 27 July 2002 18:53:57 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Mar 28, 2003 prototype) | 28 March 2003 17:20:19 | Xbox | | - |
| Burnout 3: Takedown (Apr 28, 2004 demo) | 28 April 2004 05:19:46 | PlayStation 2 | | - |
| Burnout 3: Takedown (Jul 20, 2004 11.11 prototype) | 20 July 2004 11:11:00 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (Jul 20, 2004 11.14 prototype) | 20 July 2004 11:14:24 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (Jun 21, 2004 demo) | 21 June 2004 02:37:27 | PlayStation 2 | | - |
| Burnout 3: Takedown (Jun 22, 2004 prototype) | 22 June 2004 22:03:45 | Xbox | Racing, Action | - |
| Burnout 3: Takedown (Jun 8, 2004 prototype) | 8 June 2004 18:20:40 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (May 29, 2004 demo) | 29 May 2004 08:28:33 | PlayStation 2 | | - |
| Burnout Crash! (Mar 11, 2011 prototype) | 11 March 2011 | Xbox 360 | Arcade | - |
| Burnout Crash! (May 12, 2011 prototype) | 12 May 2011 | Xbox 360 | Arcade | - |
| Burnout Paradise (Feb 22, 2007 prototype) | 22 February 2007 13:20:06 | Xbox 360 | Racing | - |
| Burnout Paradise (Nov 13, 2006 prototype) | 13 November 2006 16:14:46 | Xbox 360 | Racing | - |
| Burnout Paradise (Nov 28, 2007 prototype) | 28 November 2007 | Xbox 360 | Racing | - |
| Burnout Paradise (Nov 30, 2007 prototype) | 30 November 2007 11:15:20 | PlayStation 3 | Racing | - |
| Burnout Paradise (Oct 31, 2007 PlayStation 3 prototype) | 31 October 2007 16:48:36 | PlayStation 3 | Racing | - |
| Burnout Paradise (Oct 31, 2007 Xbox 360 prototype) | 31 October 2007 16:48:19 | Xbox 360 | Racing | - |
| Burnout Revenge (Aug 4, 2005 prototype) | 4 August 2005 16:04:15 | PlayStation 2 | Racing | - |
| Burnout Revenge (Aug 9, 2005 prototype) | 9 August 2005 08:41:16 | PlayStation 2 | Racing | - |
| Burnout Revenge (Feb 7, 2006 prototype) | 7 February 2006 | Xbox 360 | Racing | - |
| Burnout Revenge (Jul 14, 2005 prototype) | 14 July 2005 00:48:04 | PlayStation 2 | Racing | - |
| Burnout Revenge (Jul 2, 2005 13.05 demo) | 2 July 2005 13:05:41 | Xbox | Racing | - |
| Burnout Revenge (Jul 2, 2005 6.24 demo) | 2 July 2005 06:24:41 | PlayStation 2 | Racing | - |
| Burnout Revenge (Jul 7, 2005 demo) | 7 July 2005 11:03:28 | PlayStation 2 | Racing | - |
| Burnout Revenge (Jun 10, 2005 demo) | 10 June 2005 02:23:55 | PlayStation 2 | Racing | - |
| Burnout Revenge (Jun 17, 2005 demo) | 17 June 2005 10:40:37 | Xbox | Racing | - |
| Burnout Revenge (Jun 9, 2005 demo) | 9 June 2005 11:14:15 | Xbox | Racing | - |
| Burnout Revenge (May 29, 2005 demo) | 29 May 2005 07:56:39 | Xbox | Racing | - |
| Bust A Groove 2 (May 25, 2000 prototype) | 25 May 2000 13:35:38 | PlayStation | Rhythm | - |
| Bust a Groove (Aug 27, 1998 prototype) | 27 August 1998 | PlayStation | Music, fighting | - |
| Bust a Groove (Jul 30, 1998 prototype) | 30 July 1998 21:06:02 | PlayStation | Rhythm - Dancing | - |
| Bust-A-Move '99 (Aug 28, 1998 prototype) | 28 August 1998 13:44:36 | Nintendo 64 | Puzzle | - |
| Bust-a-Move Pocket (Prototype) | | Neo Geo Pocket Color | Puzzle | - |
| Buster Bros. Collection (Jul 13, 1996 prototype) | 13 July 1996 17:01:06 | PlayStation | Compilation | - |
| Buster Bros. Collection (Sep 29, 1995 prototype) | 29 September 1995 03:57:44 | PlayStation | Compilation | - |
| Buster Brothers (Prototype) | | Game Boy | Platformer | - |
| Busy Scissors (Prototype) | | Nintendo DS | | - |
| Buzz Lightyear of Star Command (May 8, 2000 prototype) | 8 May 2000 14:39:14 | PlayStation | Action | - |
| Buzz! Junior: RoboJam (Jan 12, 2007 prototype) | 12 January 2007 17:33:14 | PlayStation 2 | Action-Strategy | - |
| Buzz! Master Quiz (Jul 25, 2008 prototype) | 25 July 2008 | PlayStation Portable | Quiz | - |
| C-12: Final Resistance (Dec 19, 2000 prototype) | 19 December 2000 15:35:28 | PlayStation | Action | - |
| C-12: Final Resistance (May 5, 2000 prototype) | 5 May 2000 | PlayStation | Action | - |
| C: The Contra Adventure (Apr 22, 1998 prototype) | 22 April 1998 20:56:26 | PlayStation | 3D Shooter, Run-N-Gun | - |
| C: The Contra Adventure (Jun 12, 1998 prototype) | 12 June 1998 17:55:10 | PlayStation | 3D Shooter, Run-N-Gun | - |
| CD-I Prototype Disc - Philips Interactive Media Systems Presents Some Technical Aspects of CD-I | 1 September 1988 | Philips CD-i | FMV | ✓ |
| CJ: Elephant Fugitive (Oct 22, 1993 prototype) | 22 October 1993 | Game Gear | Action | - |
| CJ: Elephant Fugitive (Prototype) | | Sega Master System | Action | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Aug 21, 1984 prototype) | 21 August 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (ColecoVision prototype A) | | ColecoVision | Platformer | - |
| Cabbage Patch Kids: Adventures in the Park (ColecoVision prototype B) | | ColecoVision | Platformer | - |
| Cabbage Patch Kids: Adventures in the Park (Jul 27, 1984 prototype) | 27 July 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Jun 14, 1984 prototype) | 14 June 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Jun 1984 prototype) | | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Jun 29, 1984 prototype) | 29 June 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Jun 30, 1984 build) | 30 June 1984 | ColecoVision | Platformer | - |
| Cabbage Patch Kids: Adventures in the Park (May 24, 1984 prototype) | 24 May 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Sep 13, 1984 prototype A) | 13 September 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Sep 13, 1984 prototype B) | 13 September 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Sep 4, 1984 prototype) | 4 September 1984 | Atari 2600 | Platformer | ✓ |
| Cabbage Patch Kids: Adventures in the Park (Sep 7, 1984 prototype) | 7 September 1984 | Atari 2600 | Platformer | ✓ |
| Cadillac (sample) | | NES | | - |
| Caesar's Palace (Prototype B) | | NES | Gambling | - |
| Caesars Palace (Jul 29, 1997 prototype) | 29 July 1997 23:11:44 | PlayStation | Gambling | - |
| Caesars World of Gambling (Feb 5, 1992 prototype) | 5 February 1992 10:59:34 | Philips CD-i | Gambling | - |
| Cake-ya San Monogatari: Oishii Sweets o Tsukurou (Prototype) | | Nintendo 3DS | Cooking | - |
| California Games II (Cartridge Prototype) | | SNES | Sports | - |
| California Speed (Apr 26, 1999 prototype) | 26 April 1999 | Nintendo 64 | Racing | ✓ |
| Call of Duty (Oct 21, 2005 prototype) | 21 October 2005 | N-Gage | FPS | - |
| Call of Duty 2 (Oct 5, 2005 prototype) | 5 October 2005 | Xbox 360 | Action | - |
| Call of Duty 2 (Oct 9, 2005 prototype) | 9 October 2005 | Xbox 360 | Action | - |
| Call of Duty 2 (Sep 21, 2005 prototype) | 21 September 2005 | Xbox 360 | Action | - |
| Call of Duty 2 (Sep 22, 2005 prototype) | 22 September 2005 | Xbox 360 | Action | - |
| Call of Duty 2 (Sep 26, 2005 prototype) | 26 September 2005 | Xbox 360 | Action | - |
| Call of Duty 4: Modern Warfare (Apr 11, 2007 prototype) | 11 April 2007 | Xbox 360 | Shooter | - |
| Call of Duty 4: Modern Warfare (July 25, 2007 Multiplayer Prototype) | 25 July 2007 12:34:56 | Xbox 360 | FPS | - |
| Call of Duty 4: Modern Warfare (Jun 11, 2007 prototype) | 11 June 2007 | Xbox 360 | Shooter | - |
| Call of Duty 4: Modern Warfare (Mar 23, 2007 prototype) | 23 March 2007 | Xbox 360 | Shooter | - |
| Call of Duty 4: Modern Warfare (May 4, 2007 prototype) | 4 May 2007 | Xbox 360 | Shooter | - |
| Call of Duty 4: Modern Warfare (Sep 7, 2007 prototype) | 7 September 2007 | Xbox 360 | Shooter | - |
| Call of Duty: Black Ops (Sep 4, 2010 Multiplayer Prototype) | 4 September 2010 02:08:37 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops (Sep 6, 2010 Multiplayer Prototype) | 6 September 2010 02:11:27 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops II (Aug 21, 2012 Multiplayer Prototype) | 21 August 2012 12:00:58 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops II (Jan 31, 2012 Multiplayer Prototype) | 31 January 2012 20:04:52 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops II (Jul 23, 2012 Prototype) | 23 July 2012 06:09:40 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops II (July 20, 2012 Multiplayer Prototype) | 20 July 2012 23:39:14 | Xbox 360 | FPS | - |
| Call of Duty: Black Ops II (Nov 15, 2011 Singleplayer/Multiplayer Prototype) | 15 November 2011 01:09:58 | Xbox 360 | FPS | - |
| Call of Duty: Modern Warfare 2 (Jul 13, 2009 prototype) | 13 July 2009 | Xbox 360 | FPS | - |
| Call of Duty: Modern Warfare 3 (Oct 11, 2011 Prototype) | 11 October 2011 | Xbox 360 | FPS | - |
| Call of Duty: Modern Warfare 3 (Sep 19, 2011 Prototype) | 19 September 2011 | Xbox 360 | FPS | - |
| Call of Duty: World at War (Mar 20, 2007 prototype) | 20 March 2007 | Xbox 360 | Shooter | - |
| Call of Duty: World at War (Mar 27, 2007 Singleplayer/Multiplayer Prototype) | 27 March 2007 11:42:01 | Xbox 360 | FPS | - |
| Call of Duty: World at War (May 11, 2007 prototype) | 11 May 2007 | Xbox 360 | Shooter | - |
| Call of Duty: World at War (Sep 17, 2008 prototype) | 17 September 2008 | Xbox 360 | Shooter | - |
| Call of Duty: World at War (Sep 25, 2008 Multiplayer Prototype) | 25 September 2008 19:31:31 | Xbox 360 | FPS | - |
| Call of Juarez: Bound in Blood (Mar 7, 2009 prototype) | 7 March 2009 09:46:13 | Xbox 360 | FPS | - |
| Call of Juarez: Gunslinger (Apr 4, 2013 prototype) | 4 April 2013 | Xbox 360 | FPS | - |
| Cannon Fodder (Prototype) | | Game Boy Color | Action | - |
| Cannon Spike (May 15, 2000 prototype) | 15 May 2000 16:09:44 | Dreamcast | Shooter | - |
| Capcom Classics Collection Vol. 1 (Aug 16, 2005 16.13 prototype) | 16 August 2005 16:13:02 | PlayStation 2 | Compilation | - |
| Capcom Classics Collection Vol. 1 (Aug 16, 2005 23.12 prototype) | 16 August 2005 23:12:21 | Xbox | Arcade Compilation | - |
| Capcom Classics Collection Vol. 1 (May 12, 2005 prototype) | 12 May 2005 09:01:42 | Xbox | Arcade Compilation | - |
| Capcom Classics Collection Vol. 2 (Jul 5, 2006 prototype) | 5 July 2006 22:50:29 | PlayStation 2 | Compilation | - |
| Capcom Classics Collection Vol. 2 (Sep 8, 2006 prototype) | 8 September 2006 23:31:13 | Xbox | Arcade Compilation | - |
| Capcom Fighting Evolution (Jan 31, 2005 prototype) | 31 January 2005 00:31:10 | Xbox | Fighting | - |
| Capcom Fighting Evolution (Mar 23, 2005 prototype) | 23 March 2005 01:28:35 | Xbox | Fighting | - |
| Capcom Fighting Evolution (Oct 29, 2004 prototype) | 29 October 2004 16:06:49 | PlayStation 2 | Fighting | - |
| Capcom Fighting Evolution (Sep 29, 2004 prototype) | 29 September 2004 09:36:34 | PlayStation 2 | Fighting | - |
| Capcom Fighting Evolution (Sep 8, 2004 prototype) | 8 September 2004 11:35:36 | PlayStation 2 | Fighting | - |
| Capcom vs. SNK: Millennium Fight 2000 (Jul 17, 2000 prototype) | 17 July 2000 00:00:00 | Dreamcast | Fighting | - |
| Capcom vs. SNK: Millennium Fight 2000 (Sep 20, 2000 prototype) | 20 September 2000 00:00:00 | Dreamcast | Fighting | - |
| Captain Harlock (Non Interactive Demo) | | Game Boy Advance | Role Playing | ✓ |
| Captain Novolin (Prototype) | | SNES | Educational | - |
| Captain Quazar (Sep 21, 1995 prototype) | 21 September 1995 | 3DO | Shooter | - |
| Captain Silver (Prototype) | | Sega Master System | Action | - |
| Carcassonne (Apr 19, 2007 prototype) | 19 April 2007 | Xbox 360 | Board Game | - |
| Carcassonne (Aug 22, 2007 prototype) | 22 August 2007 | Xbox 360 | Board Game | - |
| Cardinal Syn (Dec 14, 1997 prototype) | 15 December 1997 06:20:38 | PlayStation | Fighting | - |
| Cardinal Syn (Feb 27, 1998 prototype) | 27 February 1998 23:37:10 | PlayStation | Fighting | - |
| Care Bears (prototype) | | Atari 2600 | | ✓ |
| Carmageddon (Prototype) | | Gizmondo | Vehicular combat | ✓ |
| Carnage Heart (May 10, 1996 prototype) | 10 May 1996 10:28:48 | PlayStation | Strategy | - |
| Carnivalé (Game Boy Color prototype) | | Game Boy Color | Racing | ✓ |
| Carnivalé: Cenzo's Adventure (Jul 21, 2000 prototype) | 21 July 2000 | Nintendo 64 | Action | ✓ |
| Carol Vorderman's Sudoku (Jun 7, 2006 prototype) | 7 June 2006 16:08:20 | PlayStation 2 | Puzzle | - |
| Carrier (May 10, 1999 prototype) | 10 May 1999 | Dreamcast | Survival Horror | - |
| Cars: Mater-National Championship (Prototype) | | Nintendo Wii | Racing | - |
| Casper (Game Boy Prototype) | | Game Boy | Action adventure | - |
| Castle of Illusion: Starring Mickey Mouse (May 25, 1990 prototype) | 25 May 1990 | Sega Master System | Action | - |
| Castle of Shikigami III (Feb 12, 2008 prototype) | 12 February 2008 | Nintendo Wii | Scrolling shooter | - |
| Castlevania Bloodlines (Aug 4, 1993 prototype) | 4 August 1993 | Sega Mega Drive | Platform | - |
| Castlevania Bloodlines (Oct 3, 1993 Prototype) | 3 October 1993 | Sega Mega Drive | | - |
| Castlevania Judgment (Prototype) | | Nintendo Wii | Action | - |
| Castlevania: Harmony of Despair (Jul 9, 2010 prototype) | 9 July 2010 | Xbox 360 | Action Adventure | - |
| Castlevania: Lament of Innocence (Aug 14, 2003 prototype) | 14 August 2003 23:24:08 | PlayStation 2 | Action Adventure | - |
| Castlevania: Lords of Shadow (Jul 24, 2010 prototype) | 24 July 2010 | Xbox 360 | Action-adventure, Platformer | - |
| Castlevania: Resurrection (Nov 5, 1999 prototype) | 5 November 1999 | Dreamcast | Action-adventure, platforming | ✓ |
| Castlevania: Symphony of the Night (Feb 19, 2007 prototype) | 19 February 2007 | Xbox 360 | Action Adventure | - |
| Castlevania: Symphony of the Night (Game.com Prototype) | 1999 | Game.com | Action | ✓ |
| Castlevania: Symphony of the Night (Jun 17, 1997 prototype) | 18 June 1997 08:33:38 | PlayStation | Action/RPG | - |
| Castlevania: Symphony of the Night (Mar 6, 2007 prototype) | 6 March 2007 | Xbox 360 | Action | - |
| Castlevania: The Dracula X Chronicles (Jan 30, 2007 prototype) | 30 January 2007 | PlayStation Portable | Platform-adventure | - |
| Cat Trax (prototype) | | Atari 2600 | | ✓ |
| Catan (Mar 28, 2007 prototype) | 28 March 2007 | Xbox 360 | Card game | - |
| Catan (May 3, 2005 prototype) | 3 May 2005 12:16:12 | N-Gage | Turn-based strategy | - |
| Catapult (Prototype) | | Gizmondo | Action | ✓ |
| Cate West: The Vanishing Files (Prototype) | | Nintendo Wii | Mystery | - |
| Catrap (prototype) | | Game Boy | Puzzle | - |
| Cave Dude (Prototype) | | Game Gear | Action | ✓ |
| Caves of Fear CD (Prototype) | | Atari Jaguar CD | FMV | ✓ |
| Center Ring Boxing (Sep 26, 1995 prototype) | 26 September 1995 12:09:50 | Sega Saturn | Fighting | - |
| Centipede & Millipede (Mar 29, 2007 prototype) | 29 March 2007 | Xbox 360 | Compilation | - |
| Centipede (prototype) | | Atari 2600 | Fixed Shooter | - |
| Centurion - Defender of Rome (Apr 24, 1991 build) | 24 April 1991 16:13:40 | Sega Mega Drive | Strategy | - |
| Chakan - The Forever Man (Oct 6, 1992 build) | 6 October 1992 10:20:42 | Sega Mega Drive | Platformer | - |
| Champions World Class Soccer (Mar 18, 1994 prototype) | 18 March 1994 | Sega Mega Drive | Sports - Soccer | - |
| Champions of Norrath (Aug 20, 2003 prototype) | 20 August 2003 17:53:38 | PlayStation 2 | Action RPG | - |
| Champions of Norrath (Dec 11, 2003 prototype) | 11 December 2003 01:20:00 | PlayStation 2 | Action RPG | - |
| Champions: Return to Arms (Jul 24, 2004 prototype) | 24 July 2004 07:13:00 | PlayStation 2 | Action role-playing, hack and slash | - |
| Champions: Return to Arms (Sep 9, 2004 prototype) | 9 September 2004 19:32:00 | PlayStation 2 | Action role-playing, hack and slash | - |
| Championship Manager 2010 (Prototype) | | PlayStation Portable | Sports | - |
| Championship Motocross 2001 featuring Ricky Carmichael (Dec 8, 2000 prototype) | 8 December 2000 | PlayStation | Racing | - |
| Championship Surfer (Aug 15, 2000 prototype) | 15 August 2000 22:02:34 | Dreamcast | Sports - Surfing | - |
| Chaos Control (May 29, 1996 prototype) | 29 May 1996 | Sega Saturn | Rail shooter | - |
| Chaos Control (Oct 14, 1994 prototype) | 14 October 1994 | Philips CD-i | Rail shooter | - |
| Chaos Control (Oct 3, 1994 prototype) | 3 October 1994 | Philips CD-i | Rail shooter | - |
| Charge 'N Blast (Jul 11, 2000 prototype) | 11 July 2000 00:00:00 | Dreamcast | Action | - |
| Charge 'N Blast (Sep 29, 2000 prototype) | 29 September 2000 00:00:00 | Dreamcast | Action | - |
| Chase the Express (Apr 27, 2000 prototype) | 27 April 2000 15:21:32 | PlayStation | Action Adventure | - |
| Checkered Flag (CES 1993 prototype) | August 1993 | Atari Jaguar | Racing | - |
| Chelnov (Jul 23, 1997 prototype) | 23 July 1997 13:41:20 | Sega Saturn | Action | ✓ |
| Chessmaster 7000 (Sep 17, 1999 prototype) | 17 September 1999 | PC | | - |
| Chester Cheetah: Wild Wild Quest (Lynchmob build) | | SNES | | - |
| Chester Field: Ankoku Shin heno Chousen (Prototype) | | NES | Action | - |
| Chibi Maruko-chan: Mezase! Minami no Island!! (Prototype) | | SNES | Action | - |
| Chicago Enforcer (Nov 8, 2004 prototype) | 8 November 2004 | Xbox | | - |
| Chicago Enforcer (Sep 11, 2004 prototype) | 11 September 2004 01:03:07 | Xbox | First-Person Shooter | - |
| Chicago Syndicate (Jul 10, 1995 prototype) | 10 July 1995 16:29:00 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 11, 1995 prototype) | 11 July 1995 17:24:06 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 19, 1995 prototype) | 19 July 1995 16:41:32 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 20, 1995 prototype) | 20 July 1995 15:45:16 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 21, 1995 prototype B) | 21 July 1995 17:43:06 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 21, 1995 prototype) | 21 July 1995 11:57:16 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 27, 1995 prototype) | 27 July 1995 10:20:48 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 3, 1995 prototype) | 3 July 1995 21:26:08 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 5, 1995 prototype) | 5 July 1995 22:12:20 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jul 6, 1995 prototype) | 6 July 1995 22:12:46 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 1, 1995 prototype) | 1 June 1995 19:02:08 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 12, 1995 prototype) | 12 June 1995 18:08:16 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 14, 1995 prototype) | 14 June 1995 19:14:42 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 19, 1995 prototype) | 19 June 1995 21:28:26 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 20, 1995 prototype) | 20 June 1995 19:59:32 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 22, 1995 prototype) | 22 June 1995 17:45:20 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 26, 1995 prototype) | 26 June 1995 18:45:58 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 28, 1995 prototype) | 27 June 1995 23:26:34 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 29, 1995 prototype B) | 29 June 1995 22:41:06 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 29, 1995 prototype) | 29 June 1995 00:31:34 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 30, 1995 prototype B) | 30 June 1995 16:10:36 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 5, 1995 prototype) | 5 June 1995 21:41:40 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 7, 1995 prototype) | 7 June 1995 09:13:40 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Jun 8, 1995 prototype) | 8 June 1995 17:45:00 | Game Gear | Beatem Up | - |
| Chicago Syndicate (Mar 20, 1995 prototype) | 20 March 1995 | Game Gear | Action | - |
| Chicago Syndicate (May 5, 1995 prototype) | 5 May 1995 17:53:08 | Game Gear | Beatem Up | - |
| Chicane: Jenson Button Street Racing (Prototype) | | Gizmondo | Racing | - |
| Chicken Run (Jul 7, 2000 prototype) | 7 July 2000 | PlayStation | Action Adventure | - |
| Chicken Run (Oct 16, 2000 prototype) | 16 October 2000 16:08:30 | Dreamcast | Action Adventure | - |
| Chicken Run (Sep 30, 2000 prototype) | 30 September 2000 18:08:52 | PlayStation | Action Adventure | - |
| Chili Con Carnage (Sep 23, 2006 prototype) | 23 September 2006 20:19:43 | PlayStation Portable | Action | - |
| Chill (Jan 19, 1998 prototype) | 19 January 1998 15:27:47 | Sega Saturn | Sports | ✓ |
| Chill (Sep 30, 1997 prototype) | 30 September 1997 17:11:54 | PlayStation | Sports - Snowboarding | - |
| Chime (May 28, 2009 prototype) | 28 May 2009 | Xbox 360 | Rhythm | - |
| Chip 'N Dale: Rescue Rangers (Prototype) | | NES | Action | - |
| Chip's Challenge (v0.924B prototype) | | NES | Puzzle | ✓ |
| Choplifter HD (Dec 7, 2011 prototype) | 7 December 2011 | Xbox 360 | Shoot Em Up | - |
| Choplifter! (Jul 1, 1986 prototype) | | Sega Master System | Action | - |
| Choplifter! (SG-1000 Prototype) | | SG-1000 | Action | - |
| Choplifter! (Sega Master System Prototype) | | Sega Master System | Action | - |
| Choro Q (Aug 14, 2004 prototype) | 14 August 2004 18:17:49 | PlayStation 2 | Racing, Role-playing | - |
| Chou Majin Eiyuuden Wataru: Mazekko Monster (Prototype) | | Game Boy | Role Playing | - |
| Chouon Senshi Borgman (Prototype) | | Sega Master System | Action | - |
| Chrime (Jul 22, 2009 prototype) | 22 July 2009 | Xbox 360 | Rhythm | - |
| Chrono Cross (Apr 11, 2000 prototype) | 11 April 2000 17:45:00 | PlayStation | Role Playing | - |
| Chrono Cross (Mar 8, 2000 prototype) | 8 March 2000 14:05:00 | PlayStation | Role Playing | - |
| Chrono Trigger (Nov 17, 1994 prototype) | 17 November 1994 | SNES | RPG | - |
| ChuChu Rocket! (Apr 28, 2000 build) | 28 April 2000 | Dreamcast | Puzzle | - |
| ChuChu Rocket! (Jan 27, 2000 prototype) | 27 January 2000 | Dreamcast | Puzzle | - |
| Chuck E. Cheese's Party Games (May 10, 2010 prototype) | 10 May 2010 | Nintendo Wii | Simulator, minigames | - |
| Chuck Rock (Prototype) | | Game Gear | Action | - |
| Chuck Rock (prototype) | | SNES | Platformer | - |
| Chuck Yeager's Fighter Combat (Prototype) | | NES | Shooting | ✓ |
| Cipher Complex (Feb 23, 2009 prototype) | 23 February 2009 18:04:37 | Xbox 360 | Stealth | ✓ |
| Cipher Complex (Nov 18, 2009 prototype) | 18 November 2009 | Xbox 360 | Stealth | ✓ |
| Circuit Breakers (Jan 23, 1998 prototype) | 23 January 1998 | PlayStation | | - |
| Circuit Breakers (Mar 31, 1998 prototype) | 31 March 1998 00:36:38 | PlayStation | Racing | - |
| Circus Maximus: Chariot Wars (Nov 16, 2001 prototype) | 16 November 2001 19:10:06 | Xbox | Racing | - |
| Citizen X (Jan 8, 1993 prototype) | 8 January 1993 11:02:37 | Sega CD | FMV | ✓ |
| City Builder (Nov 24, 2009 prototype) | 24 November 2009 | Nintendo Wii | Simulator | - |
| Clash of the Titans (Dec 6, 2009 prototype) | 6 December 2009 | Xbox 360 | Action-adventure | - |
| Clay Fighter: Extreme (Apr 4, 1997 prototype) | 4 April 1997 17:12:50 | PlayStation | Fighting | ✓ |
| ClayFighter (Prototype) | | SNES | Fighting | - |
| ClayFighter 2: Judgment Clay (Apr 28, 1995 prototype) | 28 April 1995 | Sega 32X | Fighting | ✓ |
| ClayFighter 63 1/3 (Aug 21, 1997 prototype) | 21 August 1997 07:16:21 | Nintendo 64 | Fighting | - |
| Claymates (Prototype A) | | SNES | Platformer | - |
| Clive Barker's Jericho (Aug 31, 2007 prototype) | 31 August 2007 | Xbox 360 | | - |
| Clive Barker's Jericho (Jun 18, 2007 prototype) | 18 June 2007 | Xbox 360 | First-person shooter
survival horror | - |
| Clock Tower (Jul 18, 1997 prototype) | 18 July 1997 10:36:48 | PlayStation | Survival Horror | - |
| Clock Tower (Prototype) | | SNES | Survival Horror | - |
| Clock Tower 2: The Door of the Fear (Sep 30, 1996 prototype) | 30 September 1996 13:52:50 | PlayStation | Survival Horror | - |
| Clockwork Knight (Feb 6, 1995 prototype) | 6 February 1995 11:01:43 | Sega Saturn | Platformer | - |
| Clockwork Knight - Pepperouchau's Adventure Sample (Nov 15, 1994 build) | 14 November 1994 | Sega Saturn | Platformer | - |
| Clockwork Knight 2 (Aug 30, 1995 prototype) | 30 August 1995 14:53:35 | Sega Saturn | Action | - |
| Clockwork Knight: Pengin War (Oct 21, 1995 prototype) | 21 October 1995 04:00:09 | Sega Saturn | Action | ✓ |
| Close Combat: First to Fight (Mar 13, 2005 prototype) | 13 March 2005 | Xbox | FPS | - |
| Cloudberry Kingdom (Feb 9, 2011 prototype) | 9 February 2011 | Xbox 360 | Platformer | - |
| Club Drive (Prototype) | | Atari Jaguar | Racing | - |
| Cluedo (Sep 16, 1994 prototype) | 16 September 1994 | Philips CD-i | Mystery | - |
| Coaster Works (Nov 27, 2000 prototype) | 27 November 2000 00:00:00 | Dreamcast | Simulator | - |
| Cobra Command (Oct 10, 1992 prototype) | 10 October 1992 02:51:06 | Sega CD | Shooting | - |
| Cocoto Kart Racer (Jul 6, 2004 prototype) | 6 July 2004 | Xbox | Racing | ✓ |
| Cocoto Kart Racer (Prototype) | | Nintendo DS | Racing | - |
| Code Lyoko: Quest for Infinity (Sep 21, 2007 prototype) | 21 September 2007 | Nintendo Wii | Action-adventure | - |
| Coffeetime Crosswords (Dec 13, 2007 prototype) | 13 December 2007 06:21:05 | Xbox 360 | Puzzle | - |
| Cold Winter (Feb 9, 2005 prototype) | 9 February 2005 04:24:55 | PlayStation 2 | First-person shooter | - |
| Colin McRae Rally (Sep 15, 1999 prototype) | 15 September 1999 16:01:14 | PlayStation | Racing | - |
| Colin McRae Rally 2.0 (May 2, 2000 prototype) | 2 May 2000 | PlayStation | Racing | - |
| Colin McRae Rally 2005 (Jul 29, 2004 prototype) | 29 July 2004 | PlayStation 2 | Racing | - |
| Colin McRae Rally 2005 (Jun 30, 2004 prototype) | 30 June 2004 12:35:43 | Xbox | Racing | - |
| Colin McRae Rally 3 (Aug 13, 2002 prototype) | 13 August 2002 16:13:05 | Xbox | Racing | - |
| Colin McRae Rally 3 (Aug 19, 2002 prototype) | 19 August 2002 10:56:31 | Xbox | Racing | - |
| Colin McRae Rally 3 (Sep 29, 2002 prototype) | 29 September 2002 11:36:58 | Xbox | Racing | - |
| College Football USA 96 (Jun 21, 1995 prototype) | | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Apr 13, 1994 prototype) | 13 April 1994 21:36:44 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Apr 18, 1994 prototype) | 19 April 1994 11:09:46 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Apr 19, 1994 prototype) | 19 April 1994 11:08:08 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Apr 29, 1994 prototype) | 29 April 1994 16:25:22 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 1, 1994 prototype) | 1 June 1994 09:38:52 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 14, 1994 prototype) | 14 June 1994 11:46:30 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 15, 1994 prototype) | 15 June 1994 19:40:02 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 18, 1994 prototype) | 21 June 1994 09:02:12 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 20, 1994 prototype) | 20 June 1994 07:25:38 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 3, 1994 prototype) | 3 June 1994 15:17:06 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 7, 1994 prototype) | 7 June 1994 09:49:08 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (Jun 8, 1994 prototype) | 8 June 1994 09:29:54 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 11, 1994 prototype A) | 11 May 1994 14:28:22 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 17, 1994 prototype A) | 17 May 1994 09:11:48 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 20, 1994 prototype) | 20 May 1994 17:21:32 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 25, 1994 prototype) | 25 May 1994 14:15:58 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 3, 1994 prototype) | 3 May 1994 15:19:14 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 31, 1994 prototype) | 31 May 1994 18:54:48 | Sega Mega Drive | Sports - Football | - |
| College Football's National Championship (May 6, 1994 prototype) | 6 May 1994 15:43:48 | Sega Mega Drive | Sports - Football | - |
| Colliderz (Jun 13, 1997 prototype) | 13 June 1997 16:30:12 | Sega Saturn | Action | ✓ |
| Colony Wars: Red Sun (Jan 11, 2000 prototype) | 11 January 2000 18:41:36 | PlayStation | Action | - |
| Colony Wars: Red Sun (Nov 16, 1999 prototype) | 16 November 1999 10:36:04 | PlayStation | Action | - |
| Color Cross (Prototype A) | | Nintendo DS | Puzzle | - |
| Color Cross (Prototype B) | | Nintendo DS | Puzzle | - |
| Color Cross (Prototype C) | | Nintendo DS | Puzzle | - |
| Color Cross (Prototype D) | | Nintendo DS | Puzzle | - |
| Color Cross (Prototype E) | | Nintendo DS | Puzzle | - |
| Colors (2600 prototype) | | Atari 2600 | | ✓ |
| Colors (Prototype) | | Gizmondo | Third-person shooter | ✓ |
| Colors of Modern Rock (Feb 22, 1993 prototype) | 22 February 1993 12:16:20 | Sega CD | Video | - |
| Colosseum: Road to Freedom (Mar 17, 2005 prototype) | 17 March 2005 12:50:32 | PlayStation 2 | | - |
| Columbus: Ougon no Yoake (Prototype) | | NES | Role Playing | - |
| Columns (Jun 21, 1990 build) | 21 June 1990 10:20:50 | Sega Mega Drive | Puzzle | - |
| Columns (Prototype) | | Sega Master System | Puzzle | - |
| Combat Elite: WWII Paratroopers (Apr 27, 2004 prototype) | 27 April 2004 14:13:14 | PlayStation 2 | Third-person shooter | - |
| Combat Elite: WWII Paratroopers (May 13, 2004 prototype) | 11 May 2004 | PlayStation 2 | Action role-playing game | - |
| Combat II (Jun 1, 1983 prototype) | 1 June 1983 | Atari 2600 | Flight Simulator | ✓ |
| Combat II (Prototype) | | Atari 2600 | Flight Simulator | ✓ |
| Combat Wings: The Great Battles of WWII (May 14, 2012 prototype) | 14 May 2012 | Xbox 360 | Flight Combat | - |
| Comic Jumper: The Adventures of Captain Smiley (Jun 10, 2010 prototype) | 10 June 2010 | Xbox 360 | Action | - |
| Comix Zone (Apr 4, 1995 prototype) | 4 April 1995 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jul 12, 1995 prototype FULSCR) | 12 July 1995 11:33:30 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jul 12, 1995 prototype) | 12 July 1995 11:33:30 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 1, 1995 prototype B) | 31 May 1995 23:27:12 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 1, 1995 prototype C) | 1 June 1995 15:53:58 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 1, 1995 prototype D) | 1 June 1995 19:53:42 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 12, 1995 prototype) | 12 June 1995 12:38:40 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 2, 1995 prototype B) | 2 June 1995 12:51:04 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 2, 1995 prototype) | 2 June 1995 02:56:36 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 28, 1995 prototype) | 28 June 1995 15:27:48 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 3, 1995 prototype) | 3 June 1995 16:06:36 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 5, 1995 prototype) | 5 June 1995 11:00:14 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 6, 1995 prototype) | 6 June 1995 11:00:14 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (Jun 9, 1995 prototype) | 9 June 1995 09:10:44 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (May 26, 1995 prototype) | 26 May 1995 14:31:46 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (May 30, 1995 prototype) | 30 May 1995 12:41:54 | Sega Mega Drive | Beatem Up | - |
| Comix Zone (May 31, 1995 prototype) | 31 May 1995 15:49:04 | Sega Mega Drive | Beatem Up | - |
| Command & Conquer: Red Alert (Oct 11, 1996 prototype) | 11 October 1996 | PC | RTS | - |
| Command & Conquer: Red Alert 3 (Oct 8, 2008 prototype) | 8 October 2008 | Xbox 360 | RTS | - |
| Command and Conquer: Commando (Jul 14, 1997 prototype) | 14 July 1997 12:06:20 | PlayStation | Adventure | ✓ |
| Commanders: Attack (Nov 26, 2007 prototype) | 26 November 2007 | Xbox 360 | Turn Based | - |
| Commando (Apr 29, 1988 prototype) | 29 April 1988 | Atari 7800 | Shooter | - |
| Commandos 2 (Nov 28, 2002 prototype) | 28 November 2002 | Game Boy Advance | Action | ✓ |
| Commandos 2: Men of Courage (Aug 12, 2002 prototype) | 12 August 2002 13:06:55 | Xbox | Real-Time Strategy | - |
| Commandos: Strike Force (Feb 28, 2005 prototype) | 28 February 2005 19:11:24 | PlayStation 2 | FPS | - |
| Community Games Player Pack (May 27, 2009 prototype) | 27 May 2009 | Xbox 360 | Compilation | - |
| Complete Onside Soccer (Feb 27, 1996 prototype) | 27 February 1996 18:29:38 | PlayStation | Sports - Soccer | - |
| Compton's Interactive Encyclopedia (Oct 27, 1992 prototype) | 27 October 1992 03:25:22 | Philips CD-i | Reference | - |
| Computer BattleTech (Jan 22, 1998 prototype) | 22 January 1998 | PC | Strategy | ✓ |
| Condemned 2: Bloodshot (Dec 12, 2007 prototype) | 12 December 2007 | Xbox 360 | Survival Horror | - |
| Condemned 2: Bloodshot (Feb 3, 2008 prototype) | 3 February 2008 | Xbox 360 | Survival horror | - |
| Condemned: Criminal Origins (Aug 11, 2005 prototype) | 11 August 2005 | Xbox 360 | Shooter | - |
| Confidential Mission (Mar 3, 2001 prototype) | 3 March 2001 | Dreamcast | Shooter | - |
| Confidential Mission (Mar 9, 2001 prototype) | 9 March 2001 17:00:37 | Dreamcast | Shooter | - |
| Conflict Zone: Modern War Strategy (Apr 22, 2000 prototype) | 22 April 2000 10:17:30 | PlayStation 2 | Real-time Strategy | - |
| Conflict Zone: Modern War Strategy (Aug 8, 2000 prototype) | 8 August 2000 12:38:06 | PlayStation 2 | Real-time Strategy | - |
| Conflict: Global Terror (Aug 9, 2005 prototype) | 9 August 2005 09:18:41 | PlayStation 2 | Tactical shooter | - |
| Conflict: Vietnam (Jul 27, 2004 prototype) | 27 July 2004 12:19:18 | PlayStation 2 | Third-person shooter | - |
| Conflict: Vietnam (Prototype) | | Gizmondo | Tactical shooter | ✓ |
| Congo's Caper (Prototype) | | SNES | Action | - |
| Congo: The Movie - The Lost City of Zinj (Feb 13, 1996 prototype) | 13 February 1996 15:37:42 | Sega Saturn | First Person Shooter | - |
| Conker Live & Reloaded (Mar 14, 2005 prototype) | 14 March 2005 | Xbox | Action platform | - |
| Conker's Bad Fur Day (Aug 26, 2000 prototype) | 26 August 2000 | Nintendo 64 | Platform | - |
| Conker's Bad Fur Day (Oct 25, 2000 prototype) | 25 October 2000 | Nintendo 64 | Platform | - |
| Conker: Live & Reloaded (debug build) | | Xbox | Action platform | - |
| Connie Talbot: Over the Rainbow (Jan 29, 2009 prototype) | 29 January 2009 | Nintendo Wii | Music | ✓ |
| Conquest Earth (Aug 18, 1997 prototype) | 18 August 1997 | PC | | - |
| Conspiracy: Weapons of Mass Destruction (Feb 6, 2005 prototype) | 7 February 2005 13:34:56 | PlayStation 2 | First-person shooter | - |
| Constantine (Nov 18, 2004 prototype) | 18 November 2004 | PlayStation 2 | Action-Adventure | - |
| Constantine (Nov 24, 2004 prototype) | 24 November 2004 15:27:08 | Xbox | Action-Adventure | - |
| Contact (Apr 27, 2006 prototype) | 27 April 2006 | Nintendo DS | RPG | - |
| Contra (Oct 25, 2006 prototype) | 25 October 2006 | Xbox 360 | Action | - |
| Contra (Sample Prototype) | | NES | side scrolling shooter | - |
| Contra (Test Prototype) | | NES | run-n-gun | - |
| Contra 4 (June 27, 2007 Prototype) | 27 June 2007 22:19:55 | Nintendo DS | run-n-gun | - |
| Contra Advance (Review Prototype) | | Game Boy Advance | run-n-gun | - |
| Contra Evolution (Feb 10, 2010 prototype) | 10 February 2010 10:49:51 | Xbox 360 | 3D Shooter, Run-N-Gun | ✓ |
| Contra III: The Alien Wars (Review Prototype) | | SNES | run-n-gun | - |
| Contra IV: The Alien Wars (Regional Intermediate Prototype) | | SNES | run-n-gun | - |
| Contra Spirits (Sample Prototype) | | SNES | run-n-gun | - |
| Contra: Legacy of War (Aug 23, 1996 prototype) | 23 August 1996 19:41:38 | PlayStation | Run-n-gun | - |
| Contra: Legacy of War (January 28, 1997 Prototype) | 28 January 1997 | Sega Saturn | run-n-gun | - |
| Contra: Legacy of War (Oct 3, 1996 prototype) | 3 October 1996 04:12:38 | PlayStation | 3D Shooter, Run-N-Gun | - |
| Contra: Shattered Soldier (Jul 1, 2002 prototype) | 1 July 2002 11:15:30 | PlayStation 2 | Run and gun | - |
| Contra: Shattered Soldier (May 8, 2002 prototype) | 8 May 2002 14:52:40 | PlayStation 2 | Shoot em Up | - |
| Controller Pak Test Program v5.4 (Prototype) | | Nintendo 64 | Diagnostic | ✓ |
| Controller Test Cartridge | | | Hardware Diagnostics | - |
| Cool Boarders 2001 (Aug 21, 2000 prototype) | 21 August 2000 11:20:14 | PlayStation | Snowboarding | - |
| Cool Boarders 3 (Jul 1, 1998 prototype) | 1 July 1998 18:57:10 | PlayStation | Sports - Snowboarding | - |
| Cool Boarders Burrrn (Aug 19, 1999 prototype) | 19 August 1999 18:20:13 | Dreamcast | Sports - Snowboarding | - |
| Cool Boarders Burrrn (Jun 22, 1999 prototype) | 22 June 1999 19:57:34 | Dreamcast | Sports - Snowboarding | - |
| Cool Cool Jam (Demo) | | Neo Geo Pocket Color | Rhythm | - |
| Cool Spot (European build) | | Sega Mega Drive | Platform | - |
| Cool Spot (Mega Drive prototype) | | Sega Mega Drive | Platform | - |
| Cooly Skunk (Prototype) | | SNES | Action | ✓ |
| Corn Buster (Prototype) | | SNES | Action | ✓ |
| Corridor 8 (prototype) | | PC | | ✓ |
| Corvette (Aug 4, 2003 prototype) | 4 August 2003 21:01:08 | Xbox | Racing | - |
| Cosmic Carnage (Oct 11, 1994 prototype) | 11 October 1994 06:32:32 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Oct 13, 1994 prototype) | 13 October 1994 06:42:58 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Oct 4, 1994 prototype) | 4 October 1994 09:43:02 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Oct 5, 1994 prototype) | 5 October 1994 09:17:16 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Oct 7, 1994 prototype) | 7 October 1994 09:40:00 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Sep 21, 1994 prototype) | 26 September 1994 06:41:50 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Sep 26, 1994 prototype) | 27 September 1994 19:41:46 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Sep 28, 1994 prototype) | 3 October 1994 08:39:24 | Sega 32X | Fighter (2D) | - |
| Cosmic Carnage (Sep 6, 1994 prototype) | 6 September 1994 14:24:30 | Sega 32X | Fighter (2D) | - |
| Cosmic Swarm (prototype) | | Atari 2600 | Fixed Shooter | - |
| Cosmo Tank (US Prototype) | | Game Boy | Action | - |
| Cosmos Chaos (prototype) | | Nintendo DS | Edutainment | - |
| Costume Quest (Aug 22, 2010 prototype) | 22 August 2010 | Xbox 360 | Action & Adventure | - |
| Countdown Vampires (Feb 15, 2000 prototype) | 15 February 2000 13:14:48 | PlayStation | Survival Horror | - |
| Counter-Strike (Oct 22, 2003 prototype) | 22 October 2003 | Xbox | First-Person Shooter | - |
| Counter-Strike (Sep 5, 2003 prototype) | 5 September 2003 02:52:45 | Xbox | First-Person Shooter | - |
| Counter-Strike: Condition Zero (Sep 24, 2003 prototype) | 24 September 2003 | PC | Shooter | - |
| Counter-Strike: Global Offensive (Aug 8, 2011 prototype) | 8 August 2011 | PC | FPS | - |
| Counter-Strike: Global Offensive (Jun 7, 2012 prototype) | 7 June 2012 | Xbox 360 | FPS | - |
| Counter-Strike: Global Offensive (Nov 29, 2011 prototype) | 29 November 2011 | PC | FPS | - |
| Crack'ed (Nov 28, 1988 prototype) | | Atari 2600 | | ✓ |
| Crank the Weasel (Prototype) | 2002 | PC | Action | ✓ |
| Crash 'n' Burn (Aug 23, 2004 prototype) | 23 August 2004 | PlayStation 2 | Racing, vehicular combat | - |
| Crash 'n' Burn (Aug 25, 2004 prototype) | 25 August 2004 | PlayStation 2 | Racing, vehicular combat | - |
| Crash 'n' Burn (Aug 31, 2004 prototype) | 31 August 2004 14:26:36 | Xbox | Racing | - |
| Crash Bandicoot (Apr 8, 1996 prototype) | 8 April 1996 | PlayStation | Action | - |
| Crash Bandicoot (Jul 15, 1996 prototype) | 15 July 1996 22:43:04 | PlayStation | Platform | - |
| Crash Bandicoot (May 11, 1996 prototype) | 11 May 1996 | PlayStation | Action | - |
| Crash Bandicoot 2: Cortex Strikes Back (Jun 15, 1997 prototype) | 15 June 1997 21:50:58 | PlayStation | Platform | - |
| Crash Bandicoot 2: Cortex Strikes Back (Sep 13, 1997 prototype) | 13 September 1997 13:58:56 | PlayStation | Platform | - |
| Crash Bandicoot 2: Cortex Strikes Back (Sep 14, 1997 prototype) | 14 September 1997 | PlayStation | Action | - |
| Crash Bandicoot 2: Cortex Strikes Back (Sep 29, 1997 prototype) | 29 September 1997 11:30:26 | PlayStation | Platform | - |
| Crash Bandicoot: The Wrath Of Cortex (Dec 17, 2001 prototype) | 17 December 2001 18:46:45 | Nintendo GameCube | Platformer | - |
| Crash Bandicoot: The Wrath Of Cortex (Jul 24, 2002 prototype) | 24 July 2002 15:30:15 | Nintendo GameCube | Platformer | - |
| Crash Bandicoot: The Wrath Of Cortex (May 15, 2001 prototype) | 15 May 2001 19:03:46 | PlayStation 2 | Platformer | - |
| Crash Bandicoot: The Wrath Of Cortex (Sep 21, 2001 build) | 21 September 2001 | PlayStation 2 | Platformer | - |
| Crash Bandicoot: Warped (Aug 14, 1998 prototype) | 14 August 1998 18:32:40 | PlayStation | Action | - |
| Crash Bandicoot: Warped (Aug 26, 1998 prototype) | 26 August 1998 11:54:50 | PlayStation | Platform | - |
| Crash Bandicoot: Warped (Jul 29, 1998 demo) | 29 July 1998 10:21:02 | PlayStation | Action | - |
| Crash Bandicoot: Warped (Oct 11, 1998 prototype) | 11 October 1998 13:22:11 | PlayStation | Platform | - |
| Crash Bandicoot: Warped (Sep 26, 1998 prototype) | 26 September 1998 16:38:58 | PlayStation | Platform | - |
| Crash Bash (Oct 9, 2000 prototype) | 9 October 2000 10:53:43 | PlayStation | Party | - |
| Crash Bash (Sep 14, 2000 prototype) | 14 September 2000 02:13:21 | PlayStation | Party | - |
| Crash Nitro Kart (Jul 29, 2003 prototype) | 29 July 2003 18:05:25 | Xbox | Racing | - |
| Crash Nitro Kart (Oct 4, 2003 prototype) | 4 October 2003 03:47:12 | PlayStation 2 | Racing | - |
| Crash Tag Team Racing (May 24, 2005 prototype) | 24 May 2005 18:24:08 | PlayStation 2 | Racing | - |
| Crash Tag Team Racing (Sep 28, 2005 prototype) | 28 September 2005 11:29:11 | PlayStation 2 | Racing | - |
| Crash Team Racing (Aug 14, 1999 prototype) | 14 August 1999 21:58:14 | PlayStation | Racing | - |
| Crash Team Racing (Aug 5, 1999 prototype) | 5 August 1999 | PlayStation | Racing | - |
| Crash Team Racing (Sep 3, 1999 prototype) | 3 September 1999 | PlayStation | Racing | - |
| Crash Twinsanity (Jul 19, 2004 prototype) | 19 July 2004 19:33:35 | PlayStation 2 | Action Adventure | - |
| Crash Twinsanity / Spyro: A Hero's Tail (E3 prototype) | | PlayStation 2 | | - |
| Crash of the Titans (Aug 26, 2007 prototype) | 26 August 2007 01:41:27 | PlayStation Portable | Platformer, beat 'em up | - |
| Crash of the Titans (Aug 27, 2007 prototype) | 27 August 2007 13:38:50 | PlayStation 2 | Action | - |
| Crash: Mind over Mutant (Jul 15, 2008 prototype) | 15 July 2008 | Xbox 360 | Platform | - |
| Crash: Mind over Mutant (Jul 16, 2008 prototype) | 16 July 2008 | Nintendo Wii | Action-adventure | - |
| Crash: Mind over Mutant (Sep 22, 2008 prototype) | 22 September 2008 | Nintendo Wii | Action-adventure | - |
| Crash: Mind over Mutant (Sep 7, 2008 prototype) | 7 September 2008 | PlayStation Portable | Action Adventure | - |
| Crayola Crayons Create a World (Jun 14, 1994 prototype) | 14 June 1994 22:55:00 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Jun 23, 1994 prototype) | 23 June 1994 08:51:28 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Jun 30, 1994 prototype) | 1 July 1994 22:13:50 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Oct 11, 1994 prototype) | 11 October 1994 08:06:14 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Oct 12, 1994 prototype) | 12 October 1994 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Oct 6, 1994 prototype) | 6 October 1994 13:47:50 | Sega Pico | Educational | - |
| Crayola Crayons Create a World (Sep 26, 1994 prototype) | 26 September 1994 14:38:06 | Sega Pico | Educational | - |
| Crayon Shinchan Oekaki Note (Prototype A) | | Sega Pico | Educational | - |
| Crayon Shinchan Oekaki Note (Prototype B) | | Sega Pico | Educational | - |
| Crayon Shinchan Oekaki Note (Prototype C) | | Sega Pico | Educational | - |
| Crazy Faces (Prototype) | | Game Gear | Puzzle | ✓ |
| Crazy Frog Racer (Oct 18, 2005 prototype) | 18 October 2005 02:55:20 | PlayStation 2 | Racing | - |
| Crazy Land (Prototype) | 27 May 1991 | NES | Action | ✓ |
| Crazy Mouse (Jun 19, 2008 prototype) | 19 June 2008 | Xbox 360 | Arcade | - |
| Crazy Taxi (Apr 20, 2001 prototype) | 20 April 2001 00:04:56 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Apr 26, 2001 prototype) | 26 April 2001 05:17:54 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Apr 27, 2001 prototype) | 27 April 2001 11:59:22 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Apr 3, 2001 10.48 prototype) | 3 April 2001 10:48:40 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Apr 3, 2001 16.14 prototype) | 3 April 2001 16:14:56 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Apr 8, 2001 prototype) | 8 April 2001 18:37:04 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Aug 14, 2001 prototype) | 14 August 2001 15:19:34 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Dec 13, 1999 prototype) | 13 December 1999 00:00:00 | Dreamcast | Arcade | - |
| Crazy Taxi (Dec 3, 1999 prototype) | 3 December 1999 00:00:00 | Dreamcast | Arcade | - |
| Crazy Taxi (Feb 6, 2001 prototype) | 6 February 2001 13:54:18 | PlayStation 2 | Arcade Action | - |
| Crazy Taxi (Jan 14, 2000 prototype) | 14 January 2000 00:00:00 | Dreamcast | Arcade | - |
| Crazy Taxi (Mar 9, 2010 prototype) | 9 March 2010 | Xbox 360 | | - |
| Crazy Taxi (Oct 30, 1999 prototype) | 30 October 1999 04:22:37 | Dreamcast | Action | - |
| Crazy Taxi (Sep 21, 2001 prototype) | 21 September 2001 | Nintendo GameCube | Action | - |
| Crazy Taxi 2 (Mar 11, 2001 prototype) | 11 March 2001 | Dreamcast | Arcade | - |
| Crazy Taxi 2 (May 14, 2001 prototype) | 14 May 2001 18:31:21 | Dreamcast | Arcade | - |
| Crazy Taxi 3: High Roller (Apr 15, 2002 prototype) | 15 April 2002 13:50:09 | Xbox | Racing, Action | - |
| Crazy Taxi 3: High Roller (May 29, 2002 prototype) | 29 May 2002 13:19:12 | Xbox | Racing, Action | - |
| Crazy Taxi: Catch a Ride (Prototype) | | Game Boy Advance | Action | - |
| Crazy Taxi: Fare Wars (Jun 28, 2007 prototype) | 28 June 2007 | PlayStation Portable | Racing, action | - |
| Creation (Oct 26, 1995 demo) | 26 October 1995 07:04:00 | PC | Simulation | ✓ |
| Creation for the Imagination (May 28, 1993 prototype) | 28 May 1993 10:08:38 | Philips CD-i | Reference | ✓ |
| Creation with Media Mogul (Jun 17, 1993 prototype) | 17 June 1993 16:52:03 | Philips CD-i | Reference | ✓ |
| Creature Shock (Oct 28, 1995 prototype) | 28 October 1995 21:12:13 | Sega Saturn | First Person Shooter | - |
| Creatures 3 (Oct 21, 1999 prototype) | 21 October 1999 | PC | | - |
| Crime Killer (Apr 1, 1998 prototype) | 1 April 1998 | PlayStation | Vehicular Combat | - |
| Crime Killer (Apr 12, 1998 prototype) | 12 April 1998 | PlayStation | Vehicular Combat | - |
| Crime Killer (Dec 3, 1997 prototype) | 3 December 1997 18:07:10 | PlayStation | Vehicular Combat | - |
| Crime Life: Gang Wars (Aug 9, 2005 prototype) | 9 August 2005 13:11:26 | Xbox | Action-Adventure | - |
| Crime Patrol (Sep 25, 1996 prototype) | 25 September 1996 | Sega Saturn | FMV | ✓ |
| Crimewave (Jul 16, 1996 prototype) | 16 July 1996 18:08:46 | Sega Saturn | Vehicular Combat | - |
| Crimewave (Nov 4, 1996 prototype) | 4 November 1996 13:40:36 | Sega Saturn | Vehicular Combat | - |
| Crimewave (Oct 15, 1996 prototype) | 15 October 1996 11:02:38 | Sega Saturn | Vehicular Combat | - |
| Criminal Persuit (NTSC prototype) | | Atari 2600 | Platformer | - |
| Crimson Alliance (Jun 28, 2011 prototype) | 28 June 2011 | Xbox 360 | Action Adventure | - |
| Crimson Dragon (Mar 27, 2012 Prototype) | 27 March 2012 | Xbox 360 | Rail Shooter | ✓ |
| Crimson Sea (Oct 16, 2002 prototype) | 16 October 2002 06:11:24 | Xbox | Action-Adventure | - |
| Crimson Sea 2 (Feb 6, 2004 prototype) | 6 February 2004 11:03:32 | PlayStation 2 | Shoot-em-Up | - |
| Crimson Sea 2 (Jan 4, 2004 prototype) | 4 January 2004 15:29:07 | PlayStation 2 | Shoot-em-Up | - |
| Crimson Skies: High Road to Revenge (Jun 4, 2003 prototype) | 4 June 2003 19:28:35 | Xbox | Aircraft Combat Simulator | - |
| Crisis Zone (Aug 2, 2004 prototype) | 2 August 2004 | PlayStation 2 | Light gun shooter | - |
| Crisis Zone (Jun 18, 2004 prototype) | 18 June 2004 20:17:50 | PlayStation 2 | Rail shooter | - |
| Croc 2 (Apr 30, 1999 prototype) | 30 April 1999 18:58:38 | PlayStation | Platform | - |
| Croc 2 (Jun 13, 1999 prototype) | 13 June 1999 22:17:36 | PlayStation | Platform | - |
| Croc: Legend of the Gobbos (Aug 11, 1996 prototype) | 6 September 1996 15:00:00 | PlayStation | Adventure | - |
| Croc: Legend of the Gobbos (Feb 28, 1997 prototype) | 28 February 1997 12:00:00 | PlayStation | Adventure | - |
| Croc: Legend of the Gobbos (Sep 2, 1997 prototype) | 2 September 1997 09:51:48 | Sega Saturn | Platformer | - |
| Crossfire (Prototype) | | Sega Mega Drive | Shooting | - |
| Crusty Demons (Aug 23, 2005 prototype) | 23 August 2005 | Xbox | Racing | - |
| Crying Dragon (Prototype) | | Sega Mega Drive | RPG | ✓ |
| Crypt Killer (Jan 8, 1997 prototype) | 8 January 1997 04:44:12 | Sega Saturn | Rail Shooter | - |
| Crysis (Aug 1, 2011 prototype) | 1 August 2011 | Xbox 360 | FPS | - |
| Crysis (Aug 16, 2011 prototype) | 16 August 2011 | Xbox 360 | FPS | - |
| Crysis (Aug 23, 2011 prototype) | 23 August 2011 | Xbox 360 | FPS | - |
| Crysis (Jul 12, 2011 prototype) | 12 July 2011 | Xbox 360 | FPS | - |
| Crysis (Jul 28, 2011 prototype) | 28 July 2011 | Xbox 360 | FPS | - |
| Crysis (Jul 29, 2011 prototype) | 29 July 2011 | Xbox 360 | FPS | - |
| Crysis (May 26, 2011 prototype) | 26 May 2011 | Xbox 360 | FPS | - |
| Crysis 2 (Feb 16, 2011 Prototype) | 16 February 2011 01:00:08 | Xbox 360 | FPS | - |
| Crysis 2 (Feb 7, 2011 Prototype) | 7 February 2011 01:00:05 | Xbox 360 | FPS | - |
| Crysis 2 (Sep, 7, 2010 Multiplayer Prototype) | July 2010 | Xbox 360 | FPS | - |
| Crysis 3 (Apr 4, 2013 prototype) | 4 April 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 13, 2012 Prototype) | 13 December 2012 12:55:51 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 17, 2012 Prototype) | 17 December 2012 02:21:10 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 20, 2012 3.08 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 20, 2012 3.18 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 21, 2012 prototype) | 21 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 27, 2012 Prototype) | 27 December 2012 00:48:46 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 16, 2013 Prototype) | 16 January 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 27, 2012 prototype) | 27 January 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 4, 2013 Multiplayer Prototype) | 4 January 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Jul 16, 2011 prototype) | 16 July 2011 01:05:06 | Xbox 360 | FPS | - |
| Crysis 3 (May 29, 2012 Prototype) | 29 May 2012 | Xbox 360 | FPS | - |
| Crystal Castles (Jan 4, 1984 prototype) | | Atari 2600 | | - |
| Crystal Quest (Sep 13, 2007 prototype) | 13 September 2007 | Xbox 360 | Shoot Em Up | - |
| Crystal's Pony Tale (Jul 1, 1994 prototype) | 1 July 1994 07:22:54 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype B) | 13 July 1994 05:28:42 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype) | 12 July 1994 12:06:52 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 13, 1994 prototype) | 13 July 1994 09:54:40 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 15, 1994 prototype) | 15 July 1994 11:35:34 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 2, 1994 prototype) | 2 July 1994 10:07:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 3, 1994 prototype) | 5 July 1994 04:48:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 1, 1994 prototype) | 1 June 1994 06:08:16 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 10, 1994 prototype) | 10 June 1994 14:06:26 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 23, 1994 prototype) | 23 June 1994 11:25:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 28, 1994 prototype) | 28 June 1994 10:13:32 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 30, 1994 prototype) | 30 June 1994 08:10:50 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 6, 1994 prototype) | 6 June 1994 08:46:04 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 11, 1994 prototype) | 11 May 1994 19:33:02 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 19, 1994 prototype) | 19 May 1994 13:19:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 26, 1994 prototype) | 26 May 1994 16:03:22 | Sega Mega Drive | Action Platformer | - |
| Cubicolor (prototype) | | Atari 2600 | | ✓ |
| Culdcept Saga (Jul 2, 2007 prototype) | 2 July 2007 | Xbox 360 | Board Game, Card Based | - |
| Curious George (Dec 2, 2005 prototype) | 2 December 2005 15:37:29 | Xbox | Platformer | - |
| Curse (Jun 26, 1990 prototype) | 26 June 1990 | Sega Mega Drive | Shooter | - |
| Cutthroat Island (Prototype) | | Game Gear | Action | - |
| Cutthroat Island (prototype) | | SNES | Platformer | - |
| Cy Girls (Oct 29, 2003 prototype) | 29 October 2003 13:27:15 | PlayStation 2 | Action Adventure | - |
| Cyber Police ESWAT (Prototype A) | | Sega Master System | Action | - |
| Cyber Police ESWAT (Prototype B) | | Sega Master System | Action | - |
| Cyber Police ESWAT (Prototype C) | | Sega Master System | Action | - |
| Cyber Speedway (Jun 26, 1995 prototype) | 26 June 1995 14:30:50 | Sega Saturn | Racing | - |
| Cyber Troopers Virtual-On Force (Sep 13, 2010 prototype) | 13 September 2010 | Xbox 360 | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Dec 9, 1999 prototype) | 9 December 1999 13:30:35 | Dreamcast | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Mar 31, 2009 prototype) | 31 March 2009 | Xbox 360 | Action | - |
| Cybermorph (Early prototype) | 23 August 1993 | Atari Jaguar | Shooter | - |
| Cyborg Hunter (Prototype) | | Sega Master System | Arcade | - |
| D (Jan 15, 1996 prototype) | 15 January 1996 08:38:52 | PlayStation | Adventure | - |
| D&Co (Prototype) | | Nintendo DS | | - |
| DJ Hero (Jul 28, 2009 prototype) | 28 July 2009 | Xbox 360 | Music | - |
| DJ Hero 2 (Jul 6, 2010 prototype) | 6 July 2010 | Xbox 360 | Music, Rhythm | - |
| DK King of Swing (iQue Prototype) | | Game Boy Advance | Platformer | - |
| DOA2: Hardcore (Oct 1, 2000 prototype) | 1 October 2000 16:57:12 | PlayStation 2 | Fighting | - |
| DSP-1 Tech Demo | | SNES | Tech Demo | ✓ |
| Daffy Duck: The Marvin Missions (Prototype) | | SNES | Platformer | - |
| Dai Senryaku VII: Modern Military Tactics (Oct 11, 2004 prototype) | 11 October 2004 18:02:26 | Xbox | Turn-Based Strategy | - |
| Daikatana (Apr 19, 2000 prototype) | 19 April 2000 | Game Boy Color | Role Playing | - |
| Dakar 2 (Jan 27, 2003 prototype) | 27 January 2003 16:44:14 | PlayStation 2 | Racing | - |
| Dakar 2 (Nov 28, 2002 prototype) | 28 November 2002 14:54:28 | PlayStation 2 | Racing | - |
| Damnation (Apr 20, 2009 prototype) | 20 April 2009 | PlayStation 3 | Third-person shooter | - |
| Damnation (Jan 6, 2009 prototype) | 6 January 2009 | PlayStation 3 | Third-person shooter | - |
| Dance Central (Aug 10, 2010 Takehome Beta) | 10 August 2010 | Xbox 360 | Music, Rythm | - |
| Dance Central 2 (Jul 25, 2011 Takehome Beta) | 25 July 2011 | Xbox 360 | Music, Rythm | - |
| Dance Dance Revolution (Dec 8, 2000 prototype) | 8 December 2000 15:02:34 | PlayStation | Rhythm | - |
| Dance Dance Revolution (Sep 3, 2010 prototype) | 3 September 2010 | Nintendo Wii | Rhythm | - |
| Dance Dance Revolution Extreme (Jul 12, 2004 prototype) | 12 July 2004 18:12:10 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme (May 10, 2004 prototype) | 10 May 2004 17:07:36 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme 2 (May 10, 2005 prototype) | 10 May 2005 22:32:06 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Ultramix (Aug 12, 2003 prototype) | 12 August 2003 23:33:04 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 2 (Sep 7, 2004 prototype) | 7 September 2004 21:41:32 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (May 14, 2005 prototype) | 14 May 2005 05:32:38 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (Sep 3, 2005 prototype) | 3 September 2005 01:18:23 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Universe 3 (Aug 21, 2008 prototype) | 21 August 2008 | Xbox 360 | Music | - |
| Dance Dance Revolution X (Jul 10, 2008 prototype) | 10 July 2008 11:33:38 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution: Disney Mix (Jun 8, 2001 prototype) | 8 June 2001 13:47:32 | PlayStation | Rhythm | - |
| Dance Factory (Feb 22, 2006 prototype) | 22 February 2006 12:32:52 | PlayStation 2 | Rhythm | - |
| Dance Factory (Feb 5, 2006 prototype) | 5 February 2006 | PlayStation 2 | Music | - |
| Dance Factory (Jan 21, 2006 prototype) | 21 January 2006 17:37:56 | PlayStation 2 | Rhythm | - |
| Dancing Stage EuroMIX (Sep 1, 2000 prototype) | 1 September 2000 11:13:46 | PlayStation | Dancing | - |
| Dancing Stage Fusion (Jul 8, 2004 prototype) | 8 July 2004 19:29:26 | PlayStation 2 | Rhythm - Dancing | - |
| Dancing Stage Unleashed (Jul 1, 2003 prototype) | 1 July 2003 21:09:29 | Xbox | Rhythm - Dancing | - |
| Danny Sullivan's Indy Heat (Prototype) | | Sega Mega Drive | Racing | ✓ |
| Dante's Inferno (PC demo) | 28 November 1995 | Atari Jaguar CD | Adventure | ✓ |
| Dark Arms: Beast Busters (Prototype) | | Neo Geo Pocket Color | Role Playing | - |
| Dark Chambers (Nov 22, 1985 prototype) | | Atari 2600 | | - |
| Dark Cloud 2 (Dec 26, 2002 08.12 prototype) | 26 December 2002 08:12:56 | PlayStation 2 | RPG | - |
| Dark Eden (Prototype) | | Game Boy Advance | Action | ✓ |
| Dark Empire (Prototype) | | Game Boy Advance | Role playing | ✓ |
| Dark Fathoms (May 07, 2009 Tech Demo) | 7 May 2009 20:35:33 | Xbox 360 | | ✓ |
| Dark Guardian - Episode 1: Unknown Enemy (prototype) | 2001 | Atari Jaguar | | ✓ |
| Dark Kingdom (v0.55 prototype) | | SNES | Role playing | - |
| Dark Reign: Rise of the Shadowhand (Feb 18, 1998 prototype) | 18 February 1998 | PC | | - |
| Dark Rift (May 14, 1996 prototype) | 14 May 1996 21:26:18 | PlayStation | Fighting | ✓ |
| Dark Savior (Nov 2, 1996 prototype) | 2 November 1996 19:45:48 | Sega Saturn | Action | - |
| Dark Souls (Aug 21, 2011 prototype) | 21 August 2011 | Xbox 360 | Action Role-playing | - |
| Dark Summit (Jul 6, 2001 E3 prototype) | 6 July 2001 04:24:46 | Xbox | Sports - Snowboarding | - |
| Dark Void (Nov 4, 2009 prototype) | 27 October 2009 | Xbox 360 | Third-person shooter, action-adventure | - |
| Darksiders (May 29, 2009 prototype) | 29 May 2009 | Xbox 360 | Action-adventure | - |
| Darkstalkers 3 (May 25, 1998 prototype) | 25 May 1998 06:31:12 | PlayStation | Fighting | - |
| Darkstalkers Ressurection (Jan 21, 2013 prototype) | 21 January 2013 | Xbox 360 | Fighting | - |
| Darkwatch (Jun 1, 2005 prototype) | 1 June 2005 21:34:52 | Xbox | First-Person Shooter | - |
| Darkwing Duck (Game Boy prototype) | | Game Boy | Platformer | - |
| Darkwing Duck (NES prototype) | | NES | Platformer | - |
| Darwin 4081 (Feb 21, 1990 prototype) | 21 February 1990 16:52:40 | Sega Mega Drive | Shooter | - |
| Darwinia+ (May 13, 2009 prototype) | 13 May 2009 | Xbox 360 | Real Time Strategy | - |
| Dash of Destruction (Oct 27, 2008 prototype) | 27 October 2008 | Xbox 360 | Arcade | - |
| Dashin' Desperadoes (PAL prototype) | | Sega Mega Drive | Platform | - |
| Dave Mirra Freestyle BMX (Aug 17, 2000 prototype) | 17 August 2000 19:27:18 | PlayStation | Sports - BMX | - |
| Dave Mirra Freestyle BMX (Jul 25, 2000 prototype) | 25 July 2000 18:37:36 | PlayStation | | - |
| Dave Mirra Freestyle BMX (Nov 2, 2000 prototype) | 2 November 2000 11:55:22 | Dreamcast | Sports - Biking | - |
| Dave Mirra Freestyle BMX (Oct 16, 2000 prototype) | 16 October 2000 02:02:14 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX (Sep 20, 2000 prototype) | 20 September 2000 22:51:42 | Dreamcast | Sports - Bike | - |
| Dave Mirra Freestyle BMX (Sep 28, 2000 prototype) | 28 September 2000 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX (Sep 7, 2000 prototype) | 7 September 2000 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX 2 (Aug 13, 2001 prototype) | 13 August 2001 20:16:08 | PlayStation 2 | Sports - Biking | - |
| Dave Mirra Freestyle BMX 2 (Jul 8, 2001 prototype) | 8 July 2001 15:42:54 | PlayStation 2 | Sports - Biking | - |
| Dave Mirra Freestyle BMX 2 (Oct 14, 2001 prototype) | 14 October 2001 02:40:27 | Xbox | Sports | - |
| Dave Mirra Freestyle BMX 2 (Sep 19, 2001 prototype) | 19 September 2001 20:30:43 | Xbox | Sports | - |
| Dave Mirra Freestyle BMX 4 (Nov 8, 2002 prototype) | 8 November 2002 12:02:26 | Xbox | Sports - Biking | ✓ |
| David Beckham Soccer (Apr 17, 2002 prototype) | 17 April 2002 11:52:25 | Xbox | Sports | - |
| David Robinson's Supreme Court (Apr 15, 1992 prototype) | 15 April 1992 11:41:38 | Sega Mega Drive | Sports | - |
| David Robinson's Supreme Court (Prototype) | | Game Gear | Sports - Basketball | ✓ |
| Davis Cup World Tour Tennis 2 (Jul 28, 1994 prototype) | 28 July 1994 | Sega Mega Drive | Tennis | ✓ |
| Daxter (Feb 10, 2006 prototype) | 10 February 2006 16:02:56 | PlayStation Portable | Action | - |
| Daxter (Feb 2, 2006 prototype) | 2 February 2006 | PlayStation Portable | Action | - |
| Daytona USA (Feb 29, 2012 prototype) | 29 February 2012 | Xbox 360 | Racing | - |
| Daytona USA (Jul 28, 2012 prototype) | 28 July 2012 | Xbox 360 | Racing | - |
| Daytona USA 2001 (Feb 27, 2001 prototype) | 27 February 2001 19:08:50 | Dreamcast | Racing | - |
| Ddspgame (US Blue Disk) | | Nintendo 64DD | Demo | - |
| De Blob (October 30, 2008 Nintendo DS Prototype) | 30 October 2008 | Nintendo DS | | ✓ |
| De Blob 2 (Oct 17, 2010 prototype) | 17 October 2010 | Xbox 360 | Puzzle, Platform | - |
| Dead Angle (Prototype) | | Sega Master System | Action | - |
| Dead Block (May 8, 2011 prototype) | 8 May 2011 | Xbox 360 | Strategy | - |
| Dead Island 2 (June 18, 2015 prototype) | June 2015 | PC | Horror | - |
| Dead Justice (Sep 21, 2001 prototype) | 21 September 2003 | PC | | ✓ |
| Dead Man's Hand (Oct 15, 2003 prototype) | 15 October 2003 14:51:35 | Xbox | First-Person Shooter | - |
| Dead Man's Hand (Sep 17, 2003 prototype) | 17 September 2003 04:35:06 | Xbox | First-Person Shooter | - |
| Dead Rising (May 6, 2006 prototype) | 6 May 2006 | Xbox 360 | Action-adventure
survival horror
open world | - |
| Dead Rising 2 (Mar 16, 2010 prototype) | 16 March 2010 | Xbox 360 | Action-Adventure | - |
| Dead Rising 2 (May 13, 2010 prototype) | 13 May 2010 | Xbox 360 | Action-Adventure | - |
| Dead Rising 2: Case West (Jul 7, 2010 prototype) | 7 July 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case West (Oct 18, 2010 prototype) | 18 October 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Aug 7, 2010 prototype) | 7 August 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Jul 16, 2010 prototype) | 16 July 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Jul 8, 2010 Prototype) | 8 July 2010 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Case Zero (Jun 7, 2010 prototype) | 7 June 2010 16:30:00 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Case Zero (Jun 8, 2010 prototype) | 8 June 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (May 13, 2010 prototype) | 13 May 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (May 31, 2010 prototype) | 31 May 2010 | Xbox 360 | Survival | - |
| Dead Space (Aug 29, 2008 prototype) | 29 August 2008 | Xbox 360 | Survival horror | - |
| Dead Space (Aug 30, 2008 prototype) | 30 August 2008 | PlayStation 3 | Survival horror | - |
| Dead Space (Jul 31, 2008 prototype) | 31 July 2008 | Xbox 360 | Third-person shooter
survival horror | - |
| Dead Space 2 (Nov 18, 2010 prototype) | 18 November 2010 | Xbox 360 | Survival horror | - |
| Dead Space 2 (Nov 19, 2010 Prototype) | 19 November 2010 00:44:16 | Xbox 360 | Survival Horror | - |
| Dead Space 2 (Nov 8, 2010 prototype) | 8 November 2010 | Xbox 360 | Survival horror | - |
| Dead Space 2 (Oct 5, 2010 prototype) | 5 October 2010 | Xbox 360 | Survival horror | - |
| Dead Space 3 (Aug 25, 2012 prototype) | 25 August 2012 | PlayStation 3 | Survival horror | - |
| Dead Space: Extraction (Apr 22, 2009 prototype) | 22 April 2009 | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (Debug prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (v1111 prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (v430 prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Zone (Prototype) | | FDS | First Person Adventure | - |
| Dead or Alive (Apr 22, 1998 prototype) | 22 April 1998 12:52:32 | PlayStation | Fighting | - |
| Dead or Alive (Feb 20, 1998 prototype) | 20 February 1998 | PlayStation | Fighting | - |
| Dead or Alive (Jan 10, 1998 prototype) | 10 January 1998 01:15:38 | PlayStation | Fighting | - |
| Dead or Alive 1 Ultimate (Oct 12, 2004 prototype) | 12 October 2004 | Xbox | Fighting | - |
| Dead or Alive 2 (Feb 16, 2000 prototype) | 16 February 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Feb 17, 2000 prototype) | 17 February 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Jan 27, 2000 prototype) | 27 January 2000 07:48:34 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Jun 11, 2000 prototype) | 11 June 2000 22:36:47 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Mar 10, 2000 prototype) | 10 March 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Sep 8, 2000 prototype) | 8 September 2000 | PlayStation 2 | Fighting | - |
| Dead or Alive 3 (Oct 14, 2001 prototype) | 14 October 2001 17:04:04 | Xbox | Fighting | - |
| Dead or Alive 5 (Jun 2, 2012 prototype) | 2 June 2012 | Xbox 360 | Fighting | - |
| Dead to Rights (Apr 25, 2003 prototype) | 25 April 2003 11:39:40 | PlayStation 2 | Action | - |
| Dead to Rights II (Dec 24, 2004 prototype) | 24 December 2004 13:49:24 | Xbox | Third-Person Shooter | - |
| Dead to Rights: Retribution (Jan 15, 2010 prototype) | 15 January 2010 | Xbox 360 | Action | - |
| Deadlands (Jul 14, 2004 prototype) | 14 July 2004 22:10:34 | PlayStation 2 | Action | ✓ |
| Deadliest Warrior: The Game (Apr 3, 2010 prototype) | 3 April 2010 16:43:00 | Xbox 360 | Fighting | - |
| Deadly Skies (May 6, 1996 prototype) | 6 May 1996 21:55:24 | PlayStation | Flight Combat Simulator | - |
| Death By Cube (Sep 12, 2009 prototype) | 12 September 2009 | Xbox 360 | Adventure | - |
| Death By Degrees (Dec 29, 2004 prototype) | 29 December 2004 | PlayStation 2 | Action-adventure, beat 'em up | - |
| Death Duel (May 6, 1992 prototype) | 6 May 1992 14:30:12 | Sega Mega Drive | Fighting | - |
| Death Jr (Jul 22, 2005 prototype) | 22 July 2005 14:18:04 | PlayStation Portable | Action | - |
| Death Tank (Dec 11, 2008 prototype) | 11 December 2008 | Xbox 360 | Turn Based | - |
| Death Tank (Oct 2, 2008 prototype) | 2 October 2008 | Xbox 360 | Strategy | - |
| Death Track (Prototype) | | Game Boy | Racing | ✓ |
| Deathrow (Jun 24, 2002 prototype) | 24 June 2002 23:27:33 | Xbox | Action, Sports | - |
| Deathtrap Dungeon (Jan 7, 1998 prototype) | 7 January 1998 17:00:46 | PlayStation | Action-adventure | - |
| Deca Sports (Jan 29, 2008 prototype) | 29 January 2008 | Nintendo Wii | Sports | - |
| Decathlon (Prototype) | | 3DO | Sports - Baseball | ✓ |
| Deception III: Dark Delusion (Dec 28, 1999 prototype) | 28 December 1999 19:16:58 | PlayStation | Strategy | - |
| Dee Dee Planet (Apr 25, 2000 prototype) | 25 April 2000 | Dreamcast | Action | ✓ |
| Deep 6 (Jul 10, 2009 Engine Demo) | 10 July 2009 14:25:55 | Xbox 360 | | ✓ |
| Deep Fear (Jul 14, 1998 prototype) | 14 July 1998 18:37:54 | Sega Saturn | Survival Horror | ✓ |
| Deep Fighter (Feb 8, 2000 prototype) | 8 February 2000 18:28:45 | Dreamcast | Marine Combat | - |
| Deep Fighter (May 4, 2000 prototype) | 4 May 2000 16:26:12 | Dreamcast | Marine Combat | - |
| Deep Fighter (May 5, 2000 prototype) | 5 May 2000 16:31:46 | Dreamcast | Shoot 'em Up | - |
| Deep Fighter (Sep 11, 1999 prototype) | 11 September 1999 14:33:56 | PC | | - |
| Def Jam Rapstar (Aug 12, 2010 prototype) | 12 August 2010 03:48:26 | Nintendo Wii | Music | - |
| Def Jam Rapstar (Aug 19, 2010 prototype) | 19 August 2010 | Nintendo Wii | Music | - |
| Def Jam Rapstar (Jul 26, 2010 prototype) | 26 July 2010 | Nintendo Wii | Music | - |
| Def Jam Rapstar (Jul 28, 2010 prototype) | 28 July 2010 14:57:55 | Nintendo Wii | Music | - |
| Def Jam Rapstar (Sep 28, 2010 prototype) | 28 September 2010 17:08:37 | Nintendo Wii | Music | - |
| Def Jam Rapstar (Sep 29, 2010 prototype) | 29 September 2010 13:57:55 | Nintendo Wii | Music | - |
| Def Jam: Fight for NY (Aug 13, 07.10 2004 prototype) | 13 August 2004 00:10:58 | PlayStation 2 | Fighting | - |
| Def Jam: Fight for NY (Aug 13, 2004 00.10 prototype) | 13 August 2004 07:10:53 | PlayStation 2 | Fighting | - |
| Def Jam: Fight for NY (Aug 9, 2004 06.27 prototype) | 9 August 2004 06:27:57 | Xbox | Fighting | - |
| Def Jam: Fight for NY (Aug 9, 2004 prototype) | 9 August 2004 23:42:13 | PlayStation 2 | Fighting | - |
| Def Jam: Fight for NY (Jun 14, 2004 prototype) | 14 June 2004 12:29:04 | PlayStation 2 | Fighting | - |
| Defcon 5: Peace Has a Price... (Jan 3, 1996 prototype) | 3 January 1996 15:19:19 | Sega Saturn | First Person Shooter | - |
| Defender (Aug 14, 2002 prototype) | 14 August 2002 23:02:36 | PlayStation 2 | Third-Person Shooter Arcade | - |
| Defender (Nov 1981 prototype) | November 1981 | Atari 2600 | Shoot 'em up | - |
| Defender (Nov 2, 2006 prototype) | 2 November 2006 | Xbox 360 | Space Combat | - |
| Defender (Oct 30, 1981 prototype) | 30 October 1981 | Atari 2600 | Shoot 'em up | - |
| Defender 2000 (Prototype) | | Atari Jaguar | Shooter | - |
| Defenders of Oasis (Prototype) | | Game Gear | Role Playing | - |
| Defense Grid: The Awakening (Feb 27, 2009 prototype) | 27 February 2009 | Xbox 360 | Real Time Strategy | - |
| Defense Grid: The Awakening (Feb 6, 2009 prototype) | 6 February 2009 | Xbox 360 | Real Time Strategy | - |
| Defense Grid: The Awakening (Jun 2, 2009 prototype) | 2 June 2009 | Xbox 360 | Real Time Strategy | - |
| Defiance (Nov 30, 2012 Prototype) | 30 November 2012 17:22:22 | Xbox 360 | Third Person Shooter | - |
| Deine eigene Modenschau (Prototype) | | Nintendo DS | Puzzle | - |
| Deja Vu (April 28, 1990 prototype) | 28 April 1990 | NES | Point and click | - |
| Deja Vu (Jul 3, 1990 prototype) | 3 July 1990 | NES | Point and click | - |
| Deja Vu (May 15, 1990 prototype) | 15 May 1990 | NES | Point and click | - |
| Deja Vu (May 8, 1990 prototype) | 8 May 1990 | NES | Point and click | - |
| Demolition Man CD (Prototype) | | Atari Jaguar CD | Action | ✓ |
| Demolition Racer: No Exit (Aug 2, 2000 prototype) | 2 August 2000 16:05:12 | Dreamcast | Racing | - |
| Demolition Racer: No Exit (Jul 10, 2000 prototype) | 10 July 2000 | Dreamcast | Racing | - |
| Demon's Crest (Game Boy Advance prototype) | | Game Boy Advance | Platformer | ✓ |
| Demon's Crest (Localization prototype) | | SNES | Action | - |
| Demon's Crest (Prototype) | | SNES | Action | - |
| Dengeki PlayStation D21 (Demo disc) | 18 May 1999 20:17:54 | PlayStation | Demo | - |
| Dengeki Playstation D43 () | | PlayStation | | - |
| Dennis the Menace (Sep 13, 1993 prototype) | 13 September 1993 12:10:57 | Game Boy | Platformer | - |
| Dennis the Menace (prototype) | | SNES | Platformer | - |
| Densetsu no Kishi: Elrond (Prototype) | | NES | Action | - |
| Densetsu no Stafy (iQue Prototype) | | Game Boy Advance | Platformer | - |
| Densetsu no Stafy 2 (iQue Prototype) | | Game Boy Advance | Platformer | - |
| Densha de Go! 2 (Prototype) | | Neo Geo Pocket Color | Train Simulator | - |
| Derby Stallion 64 (Prototype) | | Nintendo 64 | Racing | - |
| Desert Demolition (Dec 12, 1994 prototype B) | 12 December 1994 17:47:14 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 12, 1994 prototype) | | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 13, 1994 prototype) | 13 December 1994 14:58:06 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 14, 1994 prototype) | 14 December 1994 15:50:00 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 15, 1994 prototype) | 15 December 1994 16:13:00 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 16, 1994 prototype) | 16 December 1994 19:00:54 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 19, 1994 prototype) | 19 December 1994 13:16:20 | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 6, 1994 prototype) | | Sega Mega Drive | Action Platformer | - |
| Desert Demolition (Dec 8, 1994 prototype) | 8 December 1994 14:52:08 | Sega Mega Drive | Action Platformer | - |
| Desert Falcon (May 27, 1987 prototype) | 27 May 1987 | Atari 2600 | Action | - |
| Desert Strike: Return to the Gulf (DS2 prototype) | | Sega Mega Drive | Shoot 'em up | - |
| Desert Strike: Return to the Gulf (DS3! prototype) | | Sega Mega Drive | Shoot 'em up | - |
| Despicable Me: Minion Mayhem (Prototype) | | Nintendo DS | | - |
| Destroy All Humans! (Mar 12, 2004 prototype) | 12 March 2004 05:00:27 | Xbox | Action-adventure | - |
| Destroy All Humans! (Mar 29, 2005 prototype) | 29 March 2005 21:57:39 | PlayStation 2 | Action Adventure | - |
| Destroy All Humans! (May 6, 2005 03.22 prototype) | 6 May 2005 03:22:16 | Xbox | Action-Adventure | - |
| Destroy All Humans! (May 6, 2005 prototype) | 6 May 2005 13:09:53 | PlayStation 2 | Action Adventure | - |
| Destroy All Humans! Big Willy Unleashed (Prototype) | | Nintendo Wii | Action-adventure | - |
| Destroy All Humans! Path of the Furon (Jul 2, 2007 prototype) | 2 July 2007 03:24:17 | Xbox 360 | Action-adventure | - |
| Destruction Derby (Aug 17, 1995 prototype) | 17 August 1995 12:50:22 | PlayStation | Vehicular combat | - |
| Destruction Derby (Jul 31, 1995 prototype) | 31 July 1995 13:49:54 | PlayStation | Vehicular combat | - |
| Destruction Derby 64 (Prototype) | | Nintendo 64 | Racing | - |
| Destruction Derby Arenas (Feb 25, 2004 prototype) | 25 February 2004 10:43:14 | PlayStation 2 | Racing | - |
| Destruction Derby Arenas (Sep 4, 2003 prototype) | 4 September 2003 08:19:50 | PlayStation 2 | Action | - |
| Destruction Derby Raw (May 31, 2000 prototype) | 31 May 2000 14:52:56 | PlayStation | Racing | - |
| Deuce (Jul 21, 2000 prototype) | 21 July 2000 | PlayStation | Adventure | ✓ |
| Deuce (May 10, 2000 prototype) | 10 May 2000 16:52:12 | PlayStation | Action | ✓ |
| Deus Ex (Jun 4, 2000 prototype) | 4 June 2000 12:54:34 | PC | Action role-playing, immersive sim, first-person shooter, stealth | - |
| Deus Ex: Human Revolution (Apr 12, 2011 prototype) | 12 April 2011 | Xbox 360 | Action role-playing | - |
| Devil Dice (Apr 6, 1998 prototype) | 6 April 1998 13:12:00 | PlayStation | Action | - |
| Devil Dice (Jun 14, 1998 prototype) | 14 June 1998 00:31:42 | PlayStation | Action | - |
| Devil Dice (May 31, 1998 prototype) | 31 May 1998 15:12:24 | PlayStation | Puzzle | - |
| Devil Dice (Oct 12, 1998 prototype) | 12 October 1998 | PlayStation | | - |
| Devil Kings (Apr 29, 2005 prototype) | 29 April 2005 12:45:54 | PlayStation 2 | Hack 'n Slay | - |
| Devil Kings (Aug 6, 2005 prototype) | 6 August 2005 18:09:12 | PlayStation 2 | Hack 'n Slay | - |
| Devil May Cry 2 (Dec 25, 2002 prototype) | 25 December 2002 08:36:10 | PlayStation 2 | Action | - |
| Devil May Cry 3 (Jul 27, 2004 demo) | 27 July 2004 04:22:21 | PlayStation 2 | Action-adventure | - |
| Devil May Cry 3: Dante's Awakening (Jan 12, 2005 prototype) | 11 January 2005 22:37:52 | PlayStation 2 | Action-adventure | - |
| Devil May Cry HD Collection (Jan 6, 2012 prototype) | 6 January 2012 | Xbox 360 | Compilation | - |
| Devil's Third (Jan 17, 2012 prototype) | 17 January 2012 | Xbox 360 | Third Person Shooter | ✓ |
| Devilish (Jan 16, 1992 prototype) | 16 January 1992 13:48:00 | Sega Mega Drive | Pinball | - |
| Dezaemon DD (Feb 23, 1998 prototype) | | Nintendo 64DD | Shoot em Up | ✓ |
| DiRT 2 (Aug 11, 2009 prototype) | 11 August 2009 14:54:55 | PlayStation Portable | Racing | - |
| Diablo (Aug 16, 1996 prototype) | 16 August 1996 | PC | Role playing | - |
| Diablo (Dec 12, 1997 prototype) | 12 December 1997 20:14:00 | PlayStation | Role playing | - |
| Diablo (Game Boy prototype) | | Game Boy | | ✓ |
| Diablo (Nov 9, 1996 prototype) | 9 November 1996 | PC | Role playing | - |
| Diablo II (Mar 16, 2000 prototype) | 16 March 2000 | PC | Action | - |
| Dictionnaire Hachette Multimédia (Aug 31, 1994 prototype) | 31 August 1994 | Philips CD-i | Dictionary | - |
| Diddy Kong Pilot (2001 prototype) | | Game Boy Advance | Racing | ✓ |
| Diddy Kong Pilot (2003 prototype) | | Game Boy Advance | Racing | ✓ |
| Diddy Kong Racing (May 27th, 2004 tech demo) | 27 May 2004 | Nintendo DS | Racing | - |
| Diddy Kong Racing (May 31st, 2004 tech demo) | 31 May 2004 | Nintendo DS | Racing | - |
| Diddy Kong Racing Adventure (Nov 19, 2004 prototype) | 19 November 2004 | Xbox | Racing | ✓ |
| Die Hard 64 (Mar 15, 2000 02.32 prototype) | 15 March 2000 02:32:10 | Nintendo 64 | FPS | ✓ |
| Die Hard 64 (Mar 15, 2000 02.36 prototype) | 15 March 2000 02:36:16 | Nintendo 64 | FPS | ✓ |
| Die Hard 64 (Mar 15, 2000 02.43 prototype) | 15 March 2000 02:43:12 | Nintendo 64 | FPS | ✓ |
| Die Hard Trilogy (Oct 21, 1996 prototype) | 21 October 1996 18:21:52 | Sega Saturn | Action | - |
| Die Hard Trilogy 2: Viva Las Vegas (Jan 10, 2000 prototype) | 10 January 2000 08:08:53 | PlayStation | Action | - |
| Die Maus (Prototype) | | Game Boy Color | Sports - Athletics | - |
| Die Maus: Verrueckte Olympiade (Prototype) | | Game Boy Color | Sports - Athletics | - |
| Dig Dug (Sep 11, 2006 prototype) | 11 September 2006 | Xbox 360 | Arcade | - |
| Dig Dug: Digging Strike (demo) | | Nintendo DS | Puzzle | - |
| Digimon Digital Card Battle (Apr 17, 2001 prototype) | 17 April 2001 11:55:36 | PlayStation | Turn Based Strategy | - |
| Digimon Rumble Arena 2 (Jun 17, 2004 prototype) | 17 June 2004 12:22:08 | PlayStation 2 | Fighting | - |
| Digimon Rumble Arena 2 (Mar 5, 2003 prototype) | 5 March 2003 19:58:00 | PlayStation 2 | Fighting | - |
| Digimon World 3 (Apr 21, 2002 prototype) | 21 April 2002 20:49:22 | PlayStation | Role Playing | - |
| Digimon World Data Squad (Mar 30, 2007 prototype) | 30 March 2007 11:43:31 | PlayStation 2 | Role Playing | - |
| Digimon World X (Jan 6, 2005 prototype) | 6 January 2005 09:43:11 | Xbox | Action-RPG | - |
| Digimon: Battle Spirit (Prototype) | | Game Boy Advance | Fighting | - |
| DigimonTamers: Battle Evolution (Oct 8, 2001 prototype) | 8 October 2001 14:10:44 | PlayStation | Fighting | - |
| Digital Devil Saga: Avatar Tuner 2 (Jul 11, 2005 prototype) | 11 July 2005 20:57:04 | PlayStation 2 | Role Playing | - |
| Diner Dash (Mar 26, 2008 prototype) | 26 March 2008 | Xbox 360 | Puzzle | - |
| Diner Dash (Sep 29, 2009 prototype) | 29 September 2009 | Xbox 360 | Puzzle | - |
| Dino Crisis (Aug 25, 2000 prototype) | 25 August 2000 18:37:30 | Dreamcast | Action | - |
| Dino Crisis (Aug 3, 1999 prototype) | 3 August 1999 | PlayStation | | - |
| Dino Crisis 2 (Apr 27, 2000 prototype) | 27 April 2000 12:43:08 | PlayStation | Action | - |
| Dino Crisis 3 (Jul 16, 2003 prototype) | 16 July 2003 16:02:11 | Xbox | Third-Person Shooter | - |
| Dino Hockey (Dec 18, 1990 prototype) | | NES | Sports - Hockey | ✓ |
| Dino Hockey (Prototype) | | NES | Sports - Hockey | ✓ |
| Dino Stalker (Apr 9, 2002 prototype) | 9 April 2002 21:21:26 | PlayStation 2 | Shooter - Light Gun | - |
| Dinobasher Starring Bignose the Caveman (Game Gear Prototype) | | Game Gear | Action | ✓ |
| Dinobasher Starring Bignose the Caveman (Master System Prototype) | | Sega Master System | Action | ✓ |
| Dinosaur Hunting: Ushinawareta Daichi (Oct 3, 2003 prototype) | 3 October 2003 05:50:37 | Xbox | Action-Adventure | ✓ |
| Dinosaur Planet (Dec 1, 2000 prototype) | 1 December 2000 09:26:22 | Nintendo 64 | Adventure | ✓ |
| Dinosaurs for Hire (Apr 26, 1993 prototype) | 26 April 1993 16:41:20 | Sega Mega Drive | Shooter | - |
| Dinosaurs for Hire (Apr 27, 1993 prototype) | 27 April 1993 17:29:20 | Sega Mega Drive | Shooter | - |
| Dinosaurs for Hire (May 2, 1993 prototype) | 2 May 1993 15:20:20 | Sega Mega Drive | Shooter | - |
| Dirge of Cerberus: Final Fantasy VII (Jul 11, 2005 prototype) | 11 July 2005 | PlayStation 2 | Action Adventure | - |
| Dirge of Cerberus: Final Fantasy VII (May 31, 2006 prototype) | 31 May 2006 17:01:40 | PlayStation 2 | Action Adventure | - |
| Dirt (Mar 9, 2007 prototype) | 9 March 2007 | Xbox 360 | Racing | - |
| Dirt (May 3, 2007 prototype) | 3 May 2007 | Xbox 360 | Racing | - |
| Disaster Report (Sep 2, 2002 prototype) | 2 September 2002 17:32:35 | PlayStation 2 | Survival Horror | - |
| Discs of Tron (Apr 13, 2007 prototype) | 13 April 2007 | Xbox 360 | Arcade | - |
| Disgaea 2: Cursed Memories (Jul 12, 2006 prototype) | 12 July 2006 19:27:07 | PlayStation 2 | Turn-Based Tactics | - |
| Disgaea 2: Cursed Memories (Jun 26, 2006 prototype) | 26 June 2006 21:03:54 | PlayStation 2 | Turn-Based Tactics | - |
| Disgaea 2: Cursed Memories (May 29, 2006 prototype) | 29 May 2006 18:06:37 | PlayStation 2 | Turn-Based Tactics | - |
| Disgaea Infinite (Mar 17, 2010 prototype) | 17 March 2010 | PlayStation Portable | Role-playing | - |
| Disgaea: Hour of Darkness (May 29, 2003 prototype) | 29 May 2003 09:49:39 | PlayStation 2 | Turn-Based Tactics | - |
| Disk One (ddspgame) | | Nintendo 64DD | Demo | - |
| Disney Fairies: Tinker Bell (Oct 28, 2008 prototype) | 28 October 2008 | Nintendo DS | Adventure | - |
| Disney Golf (Jul 15, 2002 prototype) | 15 July 2002 13:38:08 | PlayStation 2 | Sports - Golf | - |
| Disney Universe (Dec 8, 2010 prototype) | 8 December 2010 | Xbox 360 | Action-adventure | - |
| Disney's 102 Dalmatians: Puppies to the Rescue (May 2, 2000 prototype) | 2 May 2000 17:17:54 | Dreamcast | Platformer | - |
| Disney's 102 Dalmatians: Puppies to the Rescue (Nov 8, 2000 prototype) | 8 November 2000 | PlayStation | Platformer | - |
| Disney's Activity Centre: A Bug's Life (Aug 19, 1999 prototype) | 19 August 1999 11:19:00 | PlayStation | Educational | - |
| Disney's Atlantis: The Lost Empire (May 30, 2001 build) | 30 May 2001 17:47:26 | PlayStation | Action | - |
| Disney's Chicken Little (Aug 19, 2005 prototype) | 19 August 2005 19:22:38 | PlayStation 2 | Adventure | - |
| Disney's Chicken Little (Aug 20, 2005 prototype) | 20 August 2005 23:19:04 | Xbox | Action-Adventure | - |
| Disney's Dinosaur (Game Boy Color prototype) | | Game Boy Color | Action | - |
| Disney's Dinosaur (Oct 3, 2000 prototype) | 3 October 2000 15:22:33 | Dreamcast | Adventure | - |
| Disney's Donald Duck: Goin' Quackers (Nov 10, 2000 prototype) | 10 November 2000 15:16:31 | Dreamcast | Platformer | - |
| Disney's Donald Duck: Goin' Quackers (Sep 25, 2000 build) | 25 September 2000 | PlayStation | Platformer | - |
| Disney's DuckTales: Remastered (Jun 17, 2013 prototype) | 17 June 2013 | Xbox 360 | Platformer | - |
| Disney's Hide and Sneak (Dec 1, 2003 prototype) | 1 December 2003 | Nintendo GameCube | Action | - |
| Disney's Lilo & Stitch: Trouble in Paradise (Apr 9, 2002 prototype) | 9 April 2002 00:27:46 | PlayStation | Platformer | - |
| Disney's Peter Pan: The Legend of Never Land (Dec 3, 2001 prototype) | 3 December 2001 | PlayStation 2 | | - |
| Disney's Planes: Fire & Rescue (1252 Prototype) | | Nintendo DS | | ✓ |
| Disney's Planes: Fire & Rescue (1724 Prototype) | | Nintendo DS | | ✓ |
| Disney's Planes: Fire & Rescue (1726 Prototype) | | Nintendo DS | | ✓ |
| Disney's Planes: Fire & Rescue (UNKNOWN Prototype) | | Nintendo DS | | ✓ |
| Disney's Stitch: Experiment 626 (Apr 29, 2002 prototype) | 29 April 2002 13:33:04 | PlayStation 2 | Action | - |
| Disney's Stitch: Experiment 626 (Mar 28, 2002 prototype) | 28 March 2002 16:05:32 | PlayStation 2 | Action | - |
| Disney's The Emperor's New Groove (Aug 21, 2000 prototype) | 21 August 2000 15:00:06 | PlayStation | Platformer | - |
| Disney's The Emperor's New Groove (Jul 11, 2000 prototype) | 11 July 2000 11:51:22 | PlayStation | Platformer | - |
| Disney's The Emperor's New Groove (Oct 11, 2000 prototype) | 11 October 2000 02:52:34 | PlayStation | Platformer | - |
| Disney's The Haunted Mansion (Game Boy Advance prototype) | | Game Boy Advance | Action | ✓ |
| Disney's The Haunted Mansion (Jul 29, 2003 prototype) | 29 July 2003 21:39:07 | Xbox | Action-Adventure | - |
| Disney's The Little Mermaid II (Jul 17, 2000 prototype) | 17 July 2000 | PlayStation | Action | - |
| Disney's Treasure Planet (Aug 1, 2002 prototype) | 1 August 2002 | PlayStation | Action-adventure | - |
| Disney's Treasure Planet (Aug 23, 2002 prototype) | 23 August 2002 22:50:32 | PlayStation | Platformer | - |
| Disney's Treasure Planet (Aug 30, 2002 prototype) | 30 August 2002 12:57:37 | PlayStation 2 | Action Adventure | - |
| Disney's Treasure Planet (Sep 27, 2002 prototype) | 27 September 2002 13:20:34 | PlayStation | Platformer | - |
| Disney-Pixar Cars (May 9, 2006 prototype) | 9 May 2006 23:00:29 | Xbox | Racing | - |
| Disney-Pixar Monsters, Inc. (Dec 14, 2001 prototype) | | PlayStation 2 | Action | - |
| Disney-Pixar Monsters, Inc. Scream Team (Nov 13, 2001 prototype) | 13 November 2001 22:23:16 | PlayStation | Platformer | - |
| Disney-Pixar Ratatouille (Jan 18, 2006 prototype) | 18 January 2006 15:52:40 | Nintendo GameCube | Action | - |
| Disney-Pixar Ratatouille (prototype) | | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles (Aug 5, 2004 prototype) | 5 August 2004 20:24:38 | PlayStation 2 | Adventure | - |
| Disney-Pixar The Incredibles (July 19, 2004 prototype) | 19 July 2004 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles (Sep 12, 2004 prototype) | 12 September 2004 16:51:21 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles (Sep 13, 2004 prototype) | 13 September 2004 00:46:09 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles (Sep 20, 2004 prototype) | 20 September 2004 22:30:52 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles: Rise of the Underminer (Oct 21, 2005 prototype) | 21 October 2005 20:14:05 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles: Rise of the Underminer (Sep 15, 2005 Japanese prototype) | 15 September 2005 19:48:56 | Nintendo GameCube | Action | - |
| Disney-Pixar The Incredibles: Rise of the Underminer (Sep 15, 2005 prototype) | 15 September 2005 19:48:31 | Nintendo GameCube | Action | - |
| Disney-Pixar Toy Story 2: Buzz Lightyear to the Rescue! (May 7, 1999 prototype) | 7 May 1999 19:19:24 | PlayStation | Action | - |
| Disney’s Lilo & Stitch 2: Hämsterviel Havoc (April 15, 2004 prototype) | 15 April 2004 | Game Boy Advance | | - |
| Disney’s Lilo & Stitch 2: Hämsterviel Havoc (Feb 24, 2004 prototype) | 24 February 2002 | Game Boy Advance | | - |
| Dissidia Final Fantasy (Jul 1, 2009 prototype) | 1 July 2009 06:57:45 | PlayStation Portable | Fighting | - |
| Dive Alert (Prototype) | | Neo Geo Pocket Color | Role Playing | - |
| Diver's Dream (Jan 14, 1999 prototype) | 14 January 1999 14:43:52 | PlayStation | Action Adventure | - |
| Divine Divinity (Apr 8, 2002 demo) | 8 April 2002 | PC | RPG | - |
| Divinity II (Sep 24, 2009 prototype) | 24 September 2009 | Xbox 360 | Action role-playing | - |
| DmC: Devil May Cry (Nov 19, 2012 prototype) | 19 November 2012 | PlayStation 3 | | - |
| DmC: Devil May Cry (Oct 19, 2012 prototype) | 19 October 2012 | Xbox 360 | | - |
| Dodger GameCube Tech Demo | | Nintendo GameCube | Tech Demo | - |
| Dog's Life (Jun 10, 2004 prototype) | 10 June 2004 14:37:42 | PlayStation 2 | Action Adventure | - |
| Dog's Life (Sep 12, 2003 prototype) | 12 September 2003 19:35:31 | PlayStation 2 | Action-review | - |
| Doki Doki Penguin Land: Uchuu Daibouken (Prototype) | | Sega Master System | Puzzle | - |
| Dolucky no Oekaki House (Prototype) | | Sega Pico | Educational | - |
| Dominion (Aug 27, 1992 prototype) | 27 August 1992 23:40:02 | Atari ST | Puzzle | ✓ |
| Domino Master (Apr 4, 2008 prototype) | 4 April 2008 | Xbox 360 | Card Game | - |
| Domino Master (Feb 24, 2009 prototype) | 24 February 2009 | Xbox 360 | Card Game | - |
| Donald Duck's Speedboat (Apr 12, 1983 prototype) | 12 April 1983 | Atari 2600 | Racing | ✓ |
| Donald Duck's Speedboat (Apr 18, 1983 prototype) | 18 April 1983 | Atari 2600 | Racing | ✓ |
| Donalds Gespensterjagd (Prototype) | | Sega Pico | | ✓ |
| Donkey Kong 64 (Demo) | | Nintendo 64 | Action | - |
| Donkey Kong Country 3 (May 6, 2005 prototype) | 6 May 2005 | Game Boy Advance | Platformer | - |
| Donkey Kong Land III (Prototype) | | Game Boy | Action | - |
| Doodle Jump for Kinect (May 28, 2013 prototype) | 28 May 2013 | Xbox 360 | Action | - |
| Doom (Nov 29, 1996 prototype) | 29 November 1996 12:20:33 | Sega Saturn | First Person Shooter | - |
| Doom (Oct 1, 1994 prototype) | 1 October 1994 05:53:48 | Sega 32X | First Person Shooter | - |
| Doom (Oct 2, 1994 prototype) | 8 October 1994 15:25:14 | Sega 32X | First Person Shooter | - |
| Doom (Oct 8, 1994 - final) | 8 October 1994 09:29:28 | Sega 32X | First Person Shooter | - |
| Doom (Sep 14, 1994 prototype) | 14 September 1994 18:25:12 | Sega 32X | First Person Shooter | - |
| Doom (Sep 15, 2006 prototype) | 15 September 2006 | Xbox 360 | First Person Shooter | - |
| Doom (Sep 16, 1994 prototype) | 16 September 1994 15:23:42 | Sega 32X | First Person Shooter | - |
| Doom (Sep 21, 1994 prototype) | 21 September 1994 01:48:18 | Sega 32X | First Person Shooter | - |
| Doom (Sep 23, 1994 prototype) | 22 September 1994 22:37:06 | Sega 32X | First Person Shooter | - |
| Doom (Sep 25, 1994 prototype) | 24 September 1994 23:46:58 | Sega 32X | First Person Shooter | - |
| Doom (Sep 27, 1994 prototype) | 28 September 1994 03:30:48 | Sega 32X | First Person Shooter | - |
| Doom (Sep 30, 1996 Prototype) | | Sega Saturn | First Person Shooter | - |
| Doom (Sep 6, 1994 prototype) | 7 September 1994 12:12:38 | Sega 32X | First Person Shooter | - |
| Doom (Sep 9, 1994 prototype) | 8 September 1994 13:20:30 | Sega 32X | First Person Shooter | - |
| Doom 3 (Jul 23, 2002 prototype) | 23 July 2002 13:14:36 | PC | FPS | - |
| Doom 64 (Dec 10, 1996 prototype) | 10 December 1996 | Nintendo 64 | FPS | - |
| Doom II (May 5, 2010 prototype) | 5 May 2010 | Xbox 360 | First Person Shooter | - |
| Doom RR (Feb 15, 1995 prototype) | 15 February 1995 13:19:02 | Sega 32X | First Person Shooter | ✓ |
| Doom RR (Feb 21, 1995 prototype) | 21 February 1995 09:54:36 | Sega 32X | First Person Shooter | ✓ |
| Doom RR (Mar 7, 1995 prototype) | 7 March 1995 14:29:52 | Sega 32X | First Person Shooter | ✓ |
| Doom Troopers: Mutant Chronicles (Prototype A) | | SNES | Action | - |
| Doom Troopers: Mutant Chronicles (Prototype B) | | SNES | Action | - |
| Doraemon 2 - Nobita no Toys Land Daibouken (Prototype) | | SNES | Action Adventure, Platforming | - |
| Doritos Crash Course (Dec 2, 2010 prototype) | 2 December 2010 | Xbox 360 | Action | - |
| Doritos Crash Course (Jun 1, 2010 prototype) | 1 June 2010 | Xbox 360 | Platformer | - |
| Dot E Creator Contest | | | Misc | - |
| Dot Hack G.U. Vol. 3: Redemption (Jun 4, 2007 prototype) | 4 June 2007 15:16:22 | PlayStation 2 | Role-playing | - |
| Dot Hack Part 1: Infection (May 15, 2002 prototype) | 15 May 2002 14:52:14 | PlayStation 2 | Role-playing | - |
| Dot Hack Part 3: Outbreak (Apr 18, 2003 prototype) | 18 April 2003 10:57:27 | PlayStation 2 | Action RPG | - |
| Dot Hack Part 3: Outbreak (May 29, 2003 prototype) | 29 May 2003 05:41:36 | PlayStation 2 | Role Playing | - |
| Double D Dodgeball (Mar 10, 2008 prototype) | 10 March 2008 | Xbox 360 | Sports - Other | - |
| Double Dragon (NES prototype) | | NES | Action/Platform | - |
| Double Dragon Game Gear (Prototype) | | Game Gear | | - |
| Double Dragon II - The Revenge (Oct 18, 1991 prototype) | 18 October 1991 13:50:28 | Sega Mega Drive | Beat 'Em Up | - |
| Double Dragon II: The Revenge (sample) | | NES | Action/Beat-em-up | - |
| Double Dragon II: Wander of the Dragons (Jul 26, 2011 prototype) | 26 July 2011 | Xbox 360 | Beat Em Up | - |
| Double Dragon III: The Sacred Stones (Tradewest prototype) | | NES | Beat 'em up | - |
| Double Dragon V: The Shadow Falls (Jun 1994 prototype)) | June 1994 | Atari Jaguar | Beat em Up | - |
| Double Fine Happy Action Theater (Sep 24, 2011 prototype) | 24 September 2011 | Xbox 360 | General | - |
| Double Hawk (Prototype) | | Sega Master System | Shoot'em Up | - |
| Double Switch (Oct 3, 1995 prototype) | 3 October 1995 12:49:36 | Sega Saturn | Action | - |
| Doubutsu Banchou (N64 Prototype) | | Nintendo 64 | Action | ✓ |
| Down the World: Mervil's Ambition (Prototype) | | SNES | Role Playing | - |
| Downhill Domination (May 23, 2003 prototype) | 23 May 2003 09:44:54 | PlayStation 2 | Sports - Biking | - |
| Dr. Franken (Game Boy Prototype) | | Game Boy | Platformer | - |
| Dr. Franken (Prototype) | | Game Gear | Action | ✓ |
| Dr. Mario (Apr 27, 1990 prototype) | 27 April 1990 | NES | Puzzle | - |
| Dr. Mario (Game Boy prototype) | | Game Boy | Puzzle | - |
| Dr. Mario (Prototype C) | | NES | Puzzle | - |
| Dr. Mario (Prototype) | | NES | Puzzle | - |
| Dr. Muto (Aug 1, 2002 prototype) | 1 August 2002 21:51:32 | Xbox | Platformer | - |
| Dr. Muto (Feb 12, 2003 prototype) | 12 February 2003 14:56:01 | Nintendo GameCube | Action | - |
| Dr. Muto (Jul 31, 2002 prototype) | 31 July 2002 04:46:22 | PlayStation 2 | Platformer | - |
| Dr. Muto (Oct 2, 2002 prototype) | 2 October 2002 07:44:38 | PlayStation 2 | Platformer | - |
| Dr. Muto (Sep 24, 2002 prototype) | 24 September 2002 16:15:03 | PlayStation 2 | Platformer | - |
| Dr. Robotnik's Mean Bean Machine (Prototype B) | | Sega Mega Drive | Puzzle | - |
| Dr. Robotnik's Mean Bean Machine (Prototype) | | Sega Mega Drive | Puzzle | - |
| Drac's Night Out (Prototype) | | NES | Platform | ✓ |
| Draconus: Cult of the Wyrm (Jan 27, 2000 prototype) | 27 January 2000 18:51:28 | Dreamcast | Hack and slash | - |
| Dragon Ball Z Ultimate Tenkaichi (Jun 21, 2011 Prototype) | 21 June 2011 | Xbox 360 | Fighting | - |
| Dragon Ball Z: Budokai 2 (Sep 9, 2003 prototype) | 9 September 2003 02:25:33 | PlayStation 2 | Fighting | - |
| Dragon Ball Z: Budokai 3 (Sep 27, 2004 prototype) | 28 September 2004 04:49:11 | PlayStation 2 | Fighting | - |
| Dragon Ball Z: Budokai Tenkaichi 2 (Aug 1, 2006 prototype) | 1 August 2006 | PlayStation 2 | Fighting | - |
| Dragon Ball Z: Budokai Tenkaichi 2 (Sep 5, 2006 prototype) | 5 September 2006 14:43:09 | PlayStation 2 | Fighting | - |
| Dragon Ball Z: Budokai Tenkaichi 3 (Jul 1, 2007 PlayStation 2 prototype) | 1 July 2007 16:57:29 | PlayStation 2 | Fighting | - |
| Dragon Ball Z: Budokai Tenkaichi 3 (Jul 1, 2007 Wii prototype) | 1 July 2007 | Nintendo Wii | Fighting | - |
| Dragon Ball Z: Budokai Tenkaichi 3 (Sep 19, 2007 prototype) | 19 September 2007 | Nintendo Wii | Fighting | - |
| Dragon Ball Z: Buu's Fury (prototype) | | Game Boy Advance | Action | - |
| Dragon Ball Z: Legendary Super Warriors (English Prototype - All Features Unlocked) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (French Prototype) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (German Prototype - 1 3 20 03 02) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (German Prototype - 11 04 02 No Cheat) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (German Prototype - All Features Unlocked) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (German Prototype) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (Italian Prototype - All Features Unlocked) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (Japanese Prototype - Cheat) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (Japanese Prototype) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (Spanish Prototype - All Features Unlocked) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Legendary Super Warriors (Spanish Prototype) | | Game Boy Color | Role Playing | - |
| Dragon Ball Z: Shin Budokai (Feb 14, 2006 prototype) | 14 February 2006 11:10:52 | PlayStation Portable | Fighting | - |
| Dragon Ball Z: Super Butouden (Prototype) | | SNES | Fighting | - |
| Dragon Ball Z: Supersonic Warriors (Prototype A) | | Game Boy Advance | Fighting | - |
| Dragon Ball Z: Supersonic Warriors (Prototype B) | | Game Boy Advance | Fighting | - |
| Dragon Ball Z: Taiketsu (Prototype) | | Game Boy Advance | Fighting | - |
| Dragon Ball Z: Ultimate Tenkaichi (Jul 18, 2011 prototype) | 18 July 2011 | PlayStation 3 | Fighting | - |
| Dragon Ball: Advanced Adventure (Feb 25, 2005 prototype) | 25 February 2005 | Game Boy Advance | Action | - |
| Dragon Ball: Origins 2 (Demo) | | Nintendo DS | | - |
| Dragon Ball: Origins 2 (Prototype) | | Nintendo DS | | - |
| Dragon Ball: Raging Blast (Sep 28, 2009 prototype) | 28 September 2009 | Xbox 360 | Fighting | - |
| Dragon Ball: Raging Blast (Sep 7, 2009 prototype) | 7 September 2009 | Xbox 360 | Fighting | - |
| Dragon Ball: Raging Blast 2 (Jul 20, 2010 prototype) | 20 July 2010 | Xbox 360 | Fighting | - |
| Dragon Dance (prototype) | | Game Boy Color | Action | - |
| Dragon Force (Jun 27, 1996 prototype) | 27 June 1996 17:34:42 | Sega Saturn | Real Time Strategy | - |
| Dragon Force (Nov 1, 1996 prototype) | 1 November 1996 16:45:26 | Sega Saturn | Real Time Strategy | - |
| Dragon Force (Oct 31, 1996 prototype) | 31 October 1996 14:26:54 | Sega Saturn | Real Time Strategy | - |
| Dragon Quest VIII: Journey of the Cursed King (Aug 22, 2005 prototype) | 22 August 2005 15:57:33 | PlayStation 2 | RPG | - |
| Dragon Seeds (Aug 25, 1998 prototype) | 25 August 1998 16:45:26 | PlayStation | Strategy | - |
| Dragon Seeds (Jun 5, 1998 prototype) | 5 June 1998 23:46:26 | PlayStation | Strategy | - |
| Dragon Sword 64 (Aug 25, 1999 prototype) | 25 August 1999 | Nintendo 64 | Adventure | ✓ |
| Dragon Sword 64 (Prototype) | | Nintendo 64 | Adventure | ✓ |
| Dragon Warrior II (Prototype) | | NES | Role Playing | - |
| Dragon Warrior VII (Sep 14, 2001 prototype) | 14 September 2001 13:21:40 | PlayStation | Role Playing | - |
| Dragon's Heaven (Prototype) | | Neo Geo | Fighting | ✓ |
| Dragon's Lair (Apr 16, 1984 prototype) | 16 April 1984 | ColecoVision | Adventure | ✓ |
| Dragon's Lair (SNES Prototype) | | SNES | Action | - |
| Dragon's Lair 3D: Return to the Lair (Jul 31, 2002 prototype) | 31 July 2002 23:33:10 | Xbox | Platformer, Action-Adventure | - |
| Dragon's Lair 3D: Return to the Lair (Jun 28, 2002 prototype) | 28 June 2002 19:13:40 | Xbox | Action | - |
| Dragon's Lair 3D: Return to the Lair (Jun 7, 2002 prototype) | 7 June 2002 11:03:46 | PlayStation 2 | Action | - |
| Dragon's Lair II (Jun 22, 1994 prototype) | 22 June 1994 | Philips CD-i | FMV | - |
| Dragon's Lair: The Adventure Continues (Prototype) | | Sega Mega Drive | Arcade | ✓ |
| Dragon: The Bruce Lee Story (Apr 23, 1993 prototype) | 23 April 1993 | SNES | Fighting | - |
| Dragon: The Bruce Lee Story (Oct 6, 1994 prototype) | 6 October 1994 15:01:00 | Atari Jaguar | Fighting | - |