| | Released on | Build date | System | Genre | Unreleased |
|---|
| 'New Ways to Play' DS Promo Disc | | | Other | | - |
| 'Splosion Man (Apr 24, 2009 prototype) | | | Xbox 360 | Platform | - |
| 'Splosion Man (Jul 14, 2009 prototype) | | | Xbox 360 | Platform | - |
| .Hack Infection Part 1 (Jan 9, 2004 prototype) | | | PlayStation 2 | Role-playing | - |
| 0 Day Attack on Earth (Oct 16, 2009 prototype) | | | Xbox 360 | Arcade | - |
| 007: Blood Stone (Jul 13, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 17, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 28, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 30, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jun 10, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jun 3, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (May 21, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (May 27, 2010 prototype) | | | Xbox 360 | Third Person Shooter | - |
| 007: Everything or Nothing (Dec 12, 2003 prototype) | | | PlayStation 2 | Third-Person Shooter | - |
| 007: Everything or Nothing (Dec 3, 2003 03.13 prototype) | | | PlayStation 2 | Third-Person Shooter | - |
| 007: Everything or Nothing (Dec 3, 2003 prototype) | | | Xbox | Third-Person Shooter | - |
| 007: Everything or Nothing (Jan 7, 2004 prototype) | | | Xbox | Action-Adventure, Stealth | - |
| 007: From Russia with Love (Aug 16, 2005 prototype) | | | PlayStation 2 | Action | - |
| 007: From Russia with Love (Aug 23, 2005 prototype) | | | PlayStation 2 | Action | - |
| 007: From Russia with Love (Dec 5, 2005 prototype) | | | Xbox | Action | - |
| 007: From Russia with Love (Jul 13, 2005 prototype) | | | Xbox | Action | - |
| 007: From Russia with Love (Sep 11, 2005 prototype) | | | Xbox | Action | - |
| 007: From Russia with Love (Sep 25, 2005 prototype) | | | PlayStation 2 | Action | - |
| 007: From Russia with Love (Sep 30, 2005 prototype) | | | Xbox | Action | - |
| 007: Legends (Apr 12, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Apr 5, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 31, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 7, 2012 prototype) | | | Xbox 360 | FPS | - |
| 007: Legends (Jul 19, 2012 16.05 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Jul 19, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Jun 15, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Jun 18, 2012 prototype) | | | Xbox 360 | FPS | - |
| 007: Legends (May 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (May 21, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (May 9, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Nov 13, 2012 prototype) | | | Xbox 360 | FPS | - |
| 007: Legends (Nov 16, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Oct 17, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Oct 2, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Oct 9, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 10, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 11, 2012 08.30 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 11, 2012 13.55 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 14, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 18, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 20, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 26, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 27, 2012 13.31 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 27, 2012 15.08 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 7, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 8, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| 007: Nightfire (Oct 18, 2002 prototype) | | | Xbox | First-person shooter | - |
| 007: The World Is Not Enough (Aug 26, 2000 prototype) | | | PlayStation | First-person shooter, stealth | - |
| 007: The World is Not Enough (Dec 15, 1998 prototype) | | | Nintendo 64 | First-person shooter, stealth | - |
| 007: The World is Not Enough (Prototype A) | | | Nintendo 64 | FPS | - |
| 007: The World is Not Enough (Prototype B) | | | Nintendo 64 | FPS | - |
| 007: Tomorrow Never Dies (Oct 10, 1999 prototype) | | | PlayStation | Third Person Shooter | - |
| 1 vs. 100 (Apr 14, 2010 Prototype) | | | Xbox 360 | | - |
| 1 vs. 100 (Dec 7, 2009 prototype) | | | Xbox 360 | | - |
| 1 vs. 100 (Feb 25, 2009 prototype) | | | Xbox 360 | | - |
| 1 vs. 100 (Jun 17, 2009 A prototype) | | | Xbox 360 | | - |
| 1 vs. 100 (Jun 17, 2009 B prototype) | | | Xbox 360 | | - |
| 10-Pin Bowling (Game Boy prototype) | | | Game Boy | Bowling | ✓ |
| 100 Bullets (Apr 22, 2004 prototype) | | | Xbox | Action | ✓ |
| 100 Bullets (Aug 6, 2004 prototype) | | | Xbox | Action | ✓ |
| 100 Bullets (Jun 30, 2004 prototype) | | | PlayStation 2 | Action | ✓ |
| 100 Bullets (Oct 8, 2003 prototype) | | | Xbox | Third Person Shooter | ✓ |
| 101 Dalmatians (Aug 14, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 16, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype B) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype J) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype U) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 18, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 3, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 5, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (May 21, 1996 prototype) | | | Sega Pico | Educational | - |
| 101 Dalmatians (May 31, 1996 prototype) | | | Sega Pico | Educational | - |
| 18 Wheeler: American Pro Trucker (Apr 5, 2001 prototype) | | | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Feb 2, 2001 prototype) | | | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Nov 12, 2001 prototype) | | | Nintendo GameCube | Racing | - |
| 1942: Joint Strike (Apr 17, 2008 prototype) | | | Xbox 360 | Shoot Em Up | - |
| 1943: The Battle of Midway (Prototype B) | | | NES | Shooter | - |
| 1943: The Battle of Midway (Prototype C) | | | NES | Shooter | - |
| 1943: The Battle of Midway (Prototype) | | | NES | Shooter | - |
| 1C Company Gamescom 2009 Press Kit | | | Other | | - |
| 1C Company Gamescom 2009 Public Kit | | | Other | | - |
| 2 Games in 1: The SpongeBob SquarePants Movie / Battle for Bikini Bottom (Nov 10, 2005 prototype) | | | Nintendo GameCube | Compilation | - |
| 2 in 1: Dora the Explorer Double Pack (Prototype) | | | Game Boy Advance | Compilation | - |
| 2002 World Cup PK (PAL prototype) | | | NES | | ✓ |
| 2008 Xbox LIVE Arcade Awards (Feb 2, 2009 prototype) | | | Xbox 360 | | - |
| 2010 FIFA World Cup South Africa (Feb 10, 2010 prototype - German & French) | | | PlayStation Portable | Sports | - |
| 2010 FIFA World Cup South Africa (Jan 23, 2010 prototype) | | | Xbox 360 | Sports | - |
| 2010: The Graphic Action Game (Nov 9, 1984 prototype) | | | 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) | | | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 10, 2006 prototype) | | | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 9, 2006 prototype) | | | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Nov 28, 2005 prototype) | | | PlayStation 2 | Third-person shooter | - |
| 25 to Life (Dec 8, 2005 prototype) | | | Xbox | Third-person shooter | - |
| 25 to Life (May 24, 2005 prototype) | | | PlayStation 2 | Third-person shooter | - |
| 25 to Life (Nov 15, 2005 prototype) | | | Xbox | Third-person shooter | - |
| 2Xtreme (Aug 29, 1996 prototype) | | | PlayStation | Racing | - |
| 3 Days in Carpathia (prototype) | | | Commodore 64 | Adventure | ✓ |
| 3 on 3 NHL Arcade (Dec 1, 2008 prototype) | | | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Dec 17, 2008 prototype) | | | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Dec 5, 2008 prototype) | | | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Nov 10, 2008 prototype) | | | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Nov 24, 2008 prototype) | | | 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) | | | Atari 2600 | Shoot 'em up | ✓ |
| 3-D Zapper (prototype 2) | | | Atari 2600 | Shoot 'em up | ✓ |
| 3D Action (prototype) | | | Nintendo DS | | ✓ |
| 3D Baseball (Aug 30, 1996 prototype) | | | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Aug 6, 1996 prototype) | | | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Oct 16, 1996 prototype) | | | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Sep 19, 1996 prototype) | | | Sega Saturn | Sports - Baseball | - |
| 3D Challenge (Jan 12, 2011 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Challenge (Jul 12, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Challenge (Jul 6, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Challenge (Jul 7, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Challenge (Jun 4, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Classics (Jun 10, 2010 Xevious prototype) | | | Nintendo 3DS | | - |
| 3D Classics (Jun 7, 2010 Xevious prototype) | | | Nintendo 3DS | | - |
| 3D Classics (Jun 8, 2010 prototype) | | | Nintendo 3DS | | - |
| 3D Dot Game Heroes (Feb 15, 2010 prototype) | | | PlayStation 3 | Action role-playing | - |
| 3D Gunner (Prototype) | | | Sega Master System | Shooter | ✓ |
| 3D Hopper (Jun 7, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Lemmings (Aug 23, 1995 prototype) | | | PlayStation | Puzzle | - |
| 3D Lemmings (Aug 8, 1995 prototype) | | | PlayStation | Puzzle | - |
| 3D Paddleball (Jun 3, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| 3D Pinball: Space Cadet (Apr 26, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (July 3, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 12, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 16, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 27, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 12, 1995 prototype) | | | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 26, 1995 prototype) | | | PC | Pinball | - |
| 3D Pocket Pool (Prototype) | | | Game Boy Color | Pool | - |
| 3D Roam (prototype) | | | Commodore 64 | Action | ✓ |
| 3D Terrain (2001 tech demo) | | | Game Boy Advance | | ✓ |
| 3D Ultra Mini Golf (Mar 17, 2007 prototype) | | | Xbox 360 | Sports | - |
| 3D Ultra MiniGolf Adventures 2 (Jul 23, 2010 prototype) | | | Xbox 360 | Golf | - |
| 3D Ultra Minigolf Adventures (DLC Lost Island A prototype) | | | Xbox 360 | Golf | - |
| 3D Ultra Minigolf Adventures (DLC Lost Island B prototype) | | | Xbox 360 | Golf | - |
| 3D Ultra Minigolf Adventures (Jan 31, 2007 prototype) | | | Xbox 360 | Golf | - |
| 3DO M2 Shooter Demo | | | Panasonic M2 | Tech Demo | - |
| 3DS Testing Tool (prototype) | | | Nintendo 3DS | | ✓ |
| 4 Wheel Thunder (Jan 26, 2000 prototype) | | | Dreamcast | Racing | - |
| 4 Wheel Thunder (Jan 29, 2000 prototype) | | | Dreamcast | Racing | - |
| 4 Wheel Thunder (Mar 31, 2000 prototype) | | | Dreamcast | Racing | - |
| 4 Wheel Thunder (Nov 5, 1999 prototype) | | | Dreamcast | Racing | - |
| 4 in 1 (Feb 19, 1987 prototype) | | | Atari 2600 | Various | ✓ |
| 40 Winks (Game Boy Color prototype) | | | Game Boy Color | Platformer | ✓ |
| 40 Winks (Oct 7, 1999 prototype) | | | Nintendo 64 | Platform | - |
| 428: Shibuya Scramble (Kiosk demo) | | | Nintendo Wii | Adventure | - |
| 4x4 Evo 2 (Feb 27, 2002 prototype) | | | PlayStation 2 | Racing | - |
| 4x4 Evolution (Jan 9, 2001 prototype) | | | Dreamcast | Racing | - |
| 4×4 Off-Roaders (prototype) | | | Game Boy Advance | Racing | ✓ |
| 500 Years After (Mar 1, 1993 prototype) | | | Philips CD-i | FMV | - |
| 64DD IPL (US Prototype) | | | | Development | - |
| 64DD IPL Disk (v1.0) | | | Nintendo 64DD | Development | - |
| 64DD IPL Disk (v1.1) | | | Nintendo 64DD | Development | - |
| 64DD TOOL IPL (Development Drive) | | | | Development | - |
| 666: The Number of the Beast (Jun 5, 1989 prototype) | | | Commodore 64 | Adventure | ✓ |
| 6GUN (May 31, 2005 prototype) | | | PlayStation 2 | Third person shooter | ✓ |
| 7 Sins (Sep 29, 2004 prototype) | | | PlayStation 2 | Life simulation game | - |
| 7th Guest (Feb 4, 1994 prototype) | | | Philips CD-i | First-Person Adventure | - |
| 8 Kings (Aug 7, 2003 prototype) | | | N-Gage | | ✓ |
| 8 Kings (Jun 5, 2003 prototype) | | | N-Gage | | ✓ |
| 8 Kings (May 9, 2003 prototype) | | | N-Gage | | ✓ |
| 8 Kings (Nov 18, 2003 prototype) | | | PC | | ✓ |
| 8 Kings (Oct 23, 2003 prototype) | | | N-Gage | | ✓ |
| 8 in 1 (Nov 16, 1992 prototype) | | | Atari 2600 | Compilation | ✓ |
| 8Ball Allstars (Aug 15, 2008 Pool prototype) | | | Nintendo DS | Pool | - |
| 8Ball Allstars (Feb 11, 2008 prototype) | | | Nintendo DS | Pool | - |
| 8Ball Allstars (Feb 26, 2008 prototype) | | | Nintendo DS | Pool | - |
| 90 Minutes: European Prime Goal (prototype) | | | SNES | Sports | - |
| 90 Minutes: Sega Championship Football (Sep 18, 2001 prototype) | | | Dreamcast | Sports - Football | - |
| A Boy and His Blob (Jul 21, 2005 prototype) | | | Nintendo DS | Puzzle | ✓ |
| A Boy and His Blob (May 16, 2005 prototype) | | | Nintendo DS | Puzzle | ✓ |
| A Bug's Life (Nov 18, 1998 prototype) | | | PlayStation | Platform | - |
| A Farewell To Dragons (Nov 20, 2009 prototype) | | | PC | Action, Role-Playing | - |
| A Game of Dwarves (Sep 15, 2011 prototype) | | | PC | | - |
| A Hat in Time (Feb 20, 2014 prototype) | | | PC | Platformer | - |
| A Hat in Time (Mar 26, 2014 prototype) | | | PC | Platformer | - |
| A Hat in Time (Mar 30, 2015 prototype) | | | PC | Platformer | - |
| A Kingdom for Keflings (Apr 14, 2009 prototype) | | | Xbox 360 | Strategy | - |
| A Kingdom for Keflings (Aug 30, 2008 prototype) | | | Xbox 360 | Strategy, Simulation | - |
| A Kingdom for Keflings (Oct 29, 2008 prototype) | | | Xbox 360 | Strategy | - |
| A Night in Nylon City (Oct 28, 1994 prototype) | | | 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 (Feb 27, 2010 prototype) | | | Xbox 360 | Strategy | - |
| A World of Keflings (Oct 19, 2010 prototype) | | | Xbox 360 | Strategy | - |
| A-Force (prototype) | | | Mega Duck | | - |
| 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-Train HX (25 DLCs Pack prototype) | | | Xbox 360 | Simulation | ✓ |
| A.J.'s World of Discovery (Apr 5, 1993 prototype) | | | PC | Educational adventure | - |
| A.R.E.S. Extinction Agenda EX (May 31, 2013 prototype) | | | Xbox 360 | Action, Platformer | - |
| ACSYS: Autonomous Cybernetic System (demo) | | | Amiga | Shooter | ✓ |
| AGB Aging Cartridge (1.0) | | | Game Boy Advance | | - |
| AGB Aging Cartridge (9.0) | | | Game Boy Advance | | - |
| AGING-NTR (Aug 18, 2004 prototype) | | | Nintendo DS | Diagnostic | ✓ |
| AH-64D Apache (Mar 26, 2003 prototype) | | | PlayStation 2 | Action | - |
| AI: The Somnium Files (Jul 21, 2021 prototype) | | | PlayStation 4 | Adventure | - |
| AMF Bowling (Prototype) | | | Game Boy Color | Bowling | ✓ |
| AR Games (Jun 7, 2010 prototype) | | | Nintendo 3DS | | ✓ |
| ARK: Survival Evolved (Apr 1, 2015 prototype) | | | PC | Action-Adventure | - |
| ATP Tour Championship Tennis (Aug 2, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 5, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 8, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 19, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 23, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (May 9, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 19, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 8, 1994 prototype) | | | Sega Mega Drive | Sports - Tennis | - |
| ATV Offroad Fury 3 (Aug 22, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Aug 6, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jul 23, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jun 8, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 8, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 9, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Oct 13, 2004 prototype) | | | PlayStation 2 | Racing | - |
| ATV Offroad Fury 4 (Oct 2, 2006 prototype) | | | PlayStation 2 | Sports, Driving/Racing | - |
| ATV Offroad Fury Pro (Jan 31, 2007 prototype) | | | PlayStation Portable | Sports, Driving/Racing | - |
| ATV Offroad Fury Pro (Sep 25, 2006 prototype) | | | PlayStation Portable | Sports, Driving/Racing | - |
| ATV Offroad Fury Pro (Sep 4, 2006 prototype) | | | PlayStation Portable | Sports, Driving/Racing | - |
| ATV Racing (Apr 7, 2000 prototype A) | | | Game Boy Color | Racing | - |
| ATV Racing (Apr 7, 2000 prototype B) | | | Game Boy Color | Racing | - |
| ATV Racing (Prototype A) | | | Game Boy Color | Racing | - |
| ATV Racing (Prototype B) | | | Game Boy Color | Racing | - |
| ATV3: Lawless (May 7, 2005 prototype) | | | Xbox | Racing | ✓ |
| ATV: Quad Power Racing (Jul 4, 2000 prototype) | | | PlayStation | Racing | - |
| ATV: Quad Power Racing 2 (Dec 12, 2002 prototype) | | | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Dec 2, 2002 prototype) | | | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Nov 11, 2002 prototype) | | | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Nov 6, 2002 prototype) | | | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Oct 11, 2002 prototype) | | | Nintendo GameCube | Racing | - |
| ATV: Quad Power Racing 2 (Oct 2, 2002 prototype) | | | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Oct 7, 2002 prototype) | | | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Sep 30, 2002 prototype) | | | PlayStation 2 | Racing | - |
| ATWINMON v1.13 INET (Sep 8, 2003 prototype) | | | PlayStation 2 | Test Application | - |
| Aaahh!!! Real Monsters (Jul 7, 1995 prototype) | | | Sega Mega Drive | Adventure | - |
| Aardman Intro (Tech Demo) (prototype) | | | Game Boy Advance | Tech Demos | ✓ |
| Abomination: The Nemesis Project (Sep 15, 1999 prototype) | | | PC | | - |
| Abracadaball (Mar 20, 2008 prototype) | | | Java ME | Puzzle | - |
| Absolute X (Prototype) | | | Game Boy Color | Shooter | ✓ |
| Abstract (prototype) | | | Commodore 64 | Puzzle | ✓ |
| Ace Combat 04: Shattered Skies (Aug 27, 2001 prototype) | | | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 04: Shattered Skies (Nov 14, 2001 prototype) | | | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 3: Electrosphere (Dec 9, 1999 prototype) | | | PlayStation | Flight Combat Simulator | - |
| Ace Combat 3: Electrosphere (Jan 7, 2000 prototype) | | | PlayStation | Flight Combat Simulator | - |
| Ace Combat 5: The Unsung War (Nov 12, 2004 prototype) | | | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 5: The Unsung War (Sep 27, 2004 prototype) | | | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Ace of Aces Mission 03 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Ace of Aces Mission 04 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Aircraft Data Pack02 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Aircraft Data Pack10 Prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Battle Royale DL 1 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Battle Royale DL 2 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | ✓ |
| Ace Combat 6: Fires of Liberation (DLC Siege Battle DL 1 prototype) | | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (Oct 4, 2007 prototype) | | | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat 6: Fires of Liberation (Sep 6, 2007 prototype) | | | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat Advance (Prototype) | | | Game Boy Advance | Flight Combat | - |
| Ace Combat Infinity (Jan 31, 2014 prototype) | | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat Infinity (Jan 6, 2014 prototype) | | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat Infinity (Oct 29, 2013 prototype) | | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat X: Skies of Deception (Aug 1, 2006 prototype) | | | PlayStation Portable | Shooting | - |
| Ace Combat X: Skies of Deception (Aug 16, 2006 prototype) | | | PlayStation Portable | Flight Combat | - |
| Ace Combat Zero: The Belkan War (Jun 1, 2006 prototype) | | | PlayStation 2 | Combat flight simulator | - |
| Ace Combat: Assault Horizon (Aug 23, 2011 prototype) | | | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat: Assault Horizon (Aug 30, 2011 prototype) | | | Xbox 360 | Action, Flight Simulator | - |
| Ace Combat: Assault Horizon (Jul 11, 2011 prototype) | | | Xbox 360 | Air combat simulation | - |
| Ace Combat: Joint Assault (Jun 11, 2010 prototype) | | | PlayStation Portable | Air Combat Simulation | - |
| Ace Combat: Joint Assault (Jun 14, 2010 JP demo) | | | PlayStation Portable | Flight Simulator | - |
| Ace of Angels (Mar 1, 2002 prototype) | | | PC | | ✓ |
| Aces of the Galaxy (Feb 22, 2008 prototype) | | | Xbox 360 | Third Person Shooter | - |
| Achivements (May 25, 2012 prototype) | | | Xbox 360 | | ✓ |
| Acid House (prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Acolyte (Amstrad CPC prototype) | | | Amstrad CPC | Action | ✓ |
| Acolyte (ZX Spectrum prototype) | | | ZX Spectrum | Maze | ✓ |
| ActRaiser (Prototype) | | | SNES | Platform/city management | - |
| Action Bass (Jun 21, 2000 prototype) | | | PlayStation | Fishing | - |
| Action Fighter (Prototype) | | | Sega Master System | Action | - |
| Actionauts (Jun 22, 1984 prototype) | | | Atari 2600 | | ✓ |
| Active Life: Explorer (Jun 9, 2010 prototype) | | | Nintendo Wii | Exergaming | - |
| Active Life: Magical Carnival (Debug prototype) | | | Nintendo Wii | Minigames | - |
| Active Life: Magical Carnival (Nov 7, 2011 prototype) | | | Nintendo Wii | Minigames | - |
| Activision Classics (Jul 27, 1998 prototype) | | | PlayStation | Compilation | - |
| Activision E3 2005 Press Kit | | | Other | | - |
| Activision TV Games (Aug 18, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Aug 8, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Aug 9, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jul 14, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jul 27, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jul 4, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 15, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 20, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 28, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 29, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 7, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (Jun 8, 2000 prototype) | | | SNES | Compilation | ✓ |
| Activision TV Games (SNES prototype) | | | SNES | Compilation | ✓ |
| Addams Family (Aug 2, 1991 prototype) | | | NES | Platformer | - |
| Addams Family (Prototype B) | | | NES | Platformer | - |
| 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 | - |
| Adhoc Party for Playstation Portable (EU QA Patch Data 1.01 prototype) | | | PlayStation 3 | | - |
| Adian no Tsue (Oct 29, 1986 prototype) | | | FDS | Educational | - |
| Adroit (prototype) | | | Commodore 64 | Puzzle | ✓ |
| Advance Wars (iQue prototype) | | | Game Boy Advance | Strategy | - |
| Advanced Daisenryaku - Deutsch Dengeki Sakusen (Mar 7, 1991 prototype) | | | Sega Mega Drive | Strategy | - |
| Advanced Dungeons & Dragons: Heroes of the Lance (Amstrad CPC prototype) | | | Amstrad CPC | Action | - |
| Advanced Dungeons & Dragons: Heroes of the Lance (prototype) | | | NES | Role-playing | - |
| Advanced Dungeons & Dragons: Hillsfar (Prototype) | | | NES | Role Playing | - |
| Advanced Dungeons & Dragons: Pool of Radiance (Prototype) | | | NES | Role Playing | - |
| Advent Rising (Apr 22, 2005 prototype) | | | Xbox | Third-Person Shooter | - |
| Advent Rising (Feb 16, 2005 prototype) | | | Xbox | Third-Person Shooter | - |
| Adventure Island II (Prototype) | | | NES | Platform | - |
| Adventure Island III (Prototype) | | | NES | Action | - |
| Adventure Kid (Wonder Kid prototype) | | | Sega Master System | Platformer | - |
| Adventure Time: Finn and Jake Investigations (Apr 7, 2015 prototype) | | | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| Adventure Time: Finn and Jake Investigations (Aug 24, 2015 prototype) | | | Nintendo Wii U | Role-Playing, Action-Adventure | - |
| Adventure Time: Finn and Jake Investigations (Feb 2, 2015 prototype) | | | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jul 20, 2012 Nintendo 3DS prototype) | | | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jul 20, 2012 Nintendo DS prototype) | | | Nintendo DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jun 19, 2012 prototype) | | | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jun 30, 2012 prototype) | | | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (May 11, 2012 prototype) | | | Nintendo 3DS | Action-adventure | - |
| Adventure Time: The Secret of the Nameless Kingdom (Oct 28, 2014 prototype) | | | PlayStation Vita | Role-Playing, Action-Adventure | - |
| Adventure Time: The Secret of the Nameless Kingdom (Sep 22, 2014 prototype) | | | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| 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 of Rad Gravity (Jul 31, 1990 prototype) | | | NES | Platformer | - |
| Adventures to Go! (Jun 12, 2009 prototype) | | | PlayStation Portable | Role-playing | - |
| Aegis Wing (Mar 20, 2007 prototype) | | | Xbox 360 | Shoot Em Up | - |
| Aeon Flux (Aug 13, 2005 prototype) | | | Xbox | Action-Adventure | - |
| Aeon Flux (Jun 27, 2005 prototype) | | | PlayStation 2 | Action-adventure | - |
| Aeon Flux (Nov 18, 1996 prototype) | | | PlayStation | Action | ✓ |
| Aeon Flux (Oct 11, 2005 prototype) | | | PlayStation 2 | | - |
| Aero Elite: Combat Academy (Dec 12, 2002 prototype) | | | 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) | | | SNES | Action | - |
| Aero-Cross (Nov 26, 2010 prototype) | | | Xbox 360 | Racing | ✓ |
| Aero-Cross (demo) | | | PlayStation 3 | Racing | ✓ |
| AeroGauge (Japanese demo) | | | Nintendo 64 | Racing | - |
| Aether (prototype) | | | PC | Aether (prototype) | - |
| Afro Samurai (Dec 1, 2008 prototype) | | | Xbox 360 | Action | - |
| Afro Samurai (Oct 30, 2008 prototype) | | | Xbox 360 | Action | - |
| After Burner Climax (Dec 11, 2009 prototype) | | | Xbox 360 | Action, Shooter, Vehicular Combat | - |
| After Burner Climax (Dec 21, 2009 prototype) | | | Xbox 360 | Action, Shooter, Vehicular Combat | - |
| After Hours Athletes (Jul 16, 2011 prototype) | | | PlayStation 3 | Minigame Collection, Billiards, Bowling | - |
| Afterlife UE3 SDK Test Sample (Jun 22 15:39:23 2011 Prototype) | | | Xbox 360 | | ✓ |
| Afterlife UE3 SDK Test Sample (Jun 22 23:29:34 2011 Prototype) | | | Xbox 360 | | ✓ |
| Aftershock (May 3, 1995 prototype) | | | PlayStation | Shooter | - |
| Agaju: The Sacred Path of Treasure (Prototype) | | | Gizmondo | Adventure | ✓ |
| Agartha (Apr 17, 2001 prototype) | | | Dreamcast | Survival Horror | ✓ |
| Agartha (Apr 18, 2001 prototype) | | | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 5, 2001 prototype) | | | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 9, 2001 prototype) | | | Dreamcast | Survival Horror | ✓ |
| Age of Booty (Jun 24, 2008 prototype) | | | Xbox 360 | Real Time Strategy | - |
| Age of Booty (May 28, 2008 prototype) | | | Xbox 360 | Real Time Strategy | - |
| Age of Empires (Aug 15, 1997 prototype) | | | PC | | - |
| Age of Empires 2 - Age of Kings (Aug 13, 1998 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (Feb 22, 1999 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (Jul 17, 1998 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (July 1, 1999 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 2, 1999 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 30, 1999 prototype) | | | PC | RTS | - |
| Age of Empires 2 - Age of Kings (May 13, 1999 prototype) | | | PC | RTS | - |
| Age of Empires: The Rise of Rome (Aug 5, 1998 prototype) | | | PC | RTS | - |
| Age of Empires: The Rise of Rome (Sep 15, 1998 prototype) | | | PC | RTS | - |
| Age of Pirates: Captain Blood (Aug 27, 2004 ECTS demo) | | | PC | Action-adventure | - |
| Age of Pirates: Captain Blood (Dec 31, 2010 prototype) | | | PC | Action-adventure | ✓ |
| Age of Pirates: Captain Blood (May 12, 2005 E3 demo) | | | PC | Action-adventure | - |
| Age of Wonders (Sep 21, 1999 prototype) | | | PC | Strategy, Role-Playing | - |
| Age of Wonders II: The Wizard's Throne (Apr 17, 2002 prototype) | | | PC | Strategy | - |
| Agent Hugo: Fly Guyz! (prototype) | | | Nintendo DS | Action | ✓ |
| Aggressive Inline (Aug 21, 2002 prototype) | | | Xbox | Sports | - |
| Aggressive Inline (Aug 6, 2002 prototype) | | | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Jul 29, 2002 prototype) | | | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Mar 2, 2002 prototype) | | | PlayStation 2 | Sports | - |
| Aggressive Inline (Mar 3, 2002 prototype) | | | PlayStation 2 | Sports | - |
| Aidyn Chronicles: The First Mage (Apr 10, 2001 prototype) | | | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Dec 5, 2000 Prototype) | | | Nintendo 64 | Action | - |
| Aidyn Chronicles: The First Mage (Feb 1, 2001 Debug) | | | Nintendo 64 | Role-playing Game | - |
| Aidyn Chronicles: The First Mage (Feb 10, 2000 prototype) | | | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Mar 2, 2001 prototype) | | | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (May 9, 2000 prototype) | | | Nintendo 64 | Role playing | - |
| Air Fortress (Mar 3, 1989 prototype) | | | NES | Shoot 'em up/Platformer | - |
| Air Fortress (Prototype) | | | FDS | Shooter | ✓ |
| Air Sea Battle (Robert Coppock Demo) | | | Atari 2600 | | - |
| Air Zonk (Prototype) | | | TurboGrafx-16 | Platformer | - |
| AirBlade (Aug 27, 2001 demo) | | | PlayStation 2 | Sports - Inline | - |
| AirBlade (Jul 31, 2001 prototype) | | | PlayStation 2 | Sports - Inline | - |
| AirBlade (Nov 8, 2001 prototype) | | | PlayStation 2 | Sports - Inline | - |
| AirCars (Nov 14, 1994 prototype) | | | Atari Jaguar | Action | - |
| AirForce Delta (Jun 18, 1999 prototype) | | | Dreamcast | Flight Combat Simulator | - |
| AirForce Delta (Nov 30, 1999 prototype) | | | Dreamcast | Flight Combat Simulator | - |
| AirMech Arena (Aug 15, 2014 prototype) | | | Xbox 360 | Vehicular Combat | - |
| Airball (Prototype C) | | | NES | Action | ✓ |
| Airblade (Sep 16, 2001 prototype) | | | PlayStation 2 | Sports | - |
| Airburst (Jul 13, 2008 prototype) | | | Xbox 360 | Action | ✓ |
| Airlock (prototype) | | | Atari 2600 | Action | - |
| Akira (Prototype) | | | Sega Mega Drive | Action | ✓ |
| Akuji the Heartless (Oct 14, 1998 prototype) | | | PlayStation | Action | - |
| Akuji: The Heartless (Nov 11, 1998 prototype) | | | PlayStation | Action | - |
| Akuu Senki Raijin (Oct 14, 1987 prototype) | | | FDS | Shoot 'Em Up | - |
| Al Unser Jr.'s Road to the Top (Sega Genesis prototype) | | | Sega Mega Drive | Racing | ✓ |
| Ala (prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Aladdin (Aug 13, 1993 prototype) | | | Sega Mega Drive | Platformer | - |
| Aladdin (Aug 23, 1994 prototype) | | | NES | Platformer | - |
| Aladdin (Chicago C.E.S demo) | | | Sega Mega Drive | Platform | - |
| Aladdin (Dec 28, 1993 prototype) | | | Game Gear | Action Platformer | - |
| Aladdin (Jan 11, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Aladdin (Jan 13, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Aladdin (Jan 24, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Aladdin (Jul 31, 1993 prototype) | | | Sega Mega Drive | Platformer | - |
| Aladdin (SNES prototype) | | | SNES | | - |
| Aladdin's Cave (Commodore 64 prototype A) | | | Commodore 64 | Platform | ✓ |
| Aladdin's Cave (Commodore 64 prototype B) | | | Commodore 64 | Platformer | ✓ |
| Alan Wake (Jan 11, 2010 prototype) | | | Xbox 360 | Adventure | - |
| Alan Wake (Mar 25, 2010 prototype) | | | Xbox 360 | Adventure | - |
| Alan Wake (The Writer DLC Sep 15, 2010 prototype) | | | Xbox 360 | Shooter, Action-Adventure | - |
| Alan Wake: American Nightmare (May 18, 2011 prototype) | | | Xbox 360 | Adventure | - |
| Alex Kidd: High-Tech World (Prototype) | | | Sega Master System | Action | - |
| Alfred Chicken (Dec 3, 2001 prototype) | | | PlayStation | Platform | - |
| Alfred Chicken (ECTS Show 1993 Prototype) | | | Amiga | Platform | - |
| Alfred Chicken (Jan 25, 2002 prototype) | | | PlayStation | Platformer | - |
| Alfred Chicken (Prototype) | | | Game Boy | Platformer | - |
| Alfred Chicken (SNES prototype) | | | SNES | Platformer | - |
| Alfred J. Kwak (prototype A) | | | Commodore 64 | Platformer | ✓ |
| Alfred J. Kwak (prototype B) | | | Commodore 64 | Platformer | ✓ |
| Alias (Dec 12, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Dec 8, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Feb 6, 2004 prototype) | | | Xbox | Action-Adventure | - |
| Alias (Jan 10, 2004 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 12, 2004 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 14, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 11.29 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 13.45 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 Casino Scripts prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Jan 5, 2004 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 11, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 14, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 17, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 21, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 25, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 4, 2002 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 11.53 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 12.56 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Oct 10, 2003 prototype) | | | Xbox | Action-Adventure | - |
| Alias (Oct 11, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Oct 19, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Oct 3, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alias (Sep 25, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Alice: Madness Returns (Apr 4, 2011 prototype) | | | Xbox 360 | Action-adventure | - |
| Alice: Madness Returns (Nov 17, 2010 Prototype) | | | Xbox 360 | Platformer, Action-Adventure | - |
| Alice: Madness Returns (Sep 16, 2010 Prototype) | | | Xbox 360 | Platformer, Action-Adventure | - |
| Alien 3 (ANTHROX prototype) | | | SNES | Action | - |
| Alien 3 (Commodore 64 prototype) | | | Commodore 64 | Platformer | - |
| Alien 3 (FAIRLIGHT prototype) | | | SNES | Action | - |
| Alien 3 (PARADOX prototype) | | | SNES | Action | - |
| Alien Breed 3: Descent (Jul 16, 2010 prototype) | | | Xbox 360 | Shooter | - |
| Alien Breed Evolution (Nov 12, 2009 prototype) | | | Xbox 360 | Action, Shooter, Dual-Joystick Shooter | - |
| Alien Breed Evolution (Sep 29, 2009 prototype) | | | Xbox 360 | Action, Shooter, Dual-Joystick Shooter | - |
| Alien Breed Evolution: Episode 2 (Jan 11, 2010 prototype) | | | Xbox 360 | Shooter | - |
| Alien Breed Evolution: Episode 2 (Nov 20, 2009 prototype) | | | Xbox 360 | Shooter | - |
| Alien Destroyers II (prototype) | | | BBC Micro | Shoot 'em up | ✓ |
| Alien Friends (prototype) | | | Nintendo DS | Virtual pet | ✓ |
| Alien Front (Mar 26, 2004 prototype) | | | N-Gage | Action | ✓ |
| Alien Hominid (Milestone 4 prototype) | | | Gizmondo | | ✓ |
| Alien Hominid (Sep 24, 2004 prototype) | | | PlayStation 2 | Shoot-em-Up | - |
| Alien Hominid HD (DLC PDA Games Level Pack 2 prototype) | | | Xbox 360 | Shooter | ✓ |
| Alien Hominid HD (DLC PDA Games Level Pack prototype) | | | Xbox 360 | Shooter | ✓ |
| Alien Hominid HD (Feb 8, 2007 prototype) | | | Xbox 360 | Shooter | - |
| Alien Olympics (Amiga prototype) | | | Amiga | | ✓ |
| Alien Olympics (Aug 10, 1994 prototype) | | | PC | Sports | - |
| Alien Olympics (Oct 5, 1994 prototype) | | | PC | Sports | - |
| Alien Olympics 2044 AD (Jun 14, 1994 prototype) | | | Game Boy | Sports | - |
| Alien Olympics 2044 AD (US prototype) | | | Game Boy | Sports | - |
| Alien Olympics 2044 AD (prototype A) | | | Game Boy | Sports | - |
| Alien Olympics 2044 AD (prototype B) | | | Game Boy | Sports | - |
| Alien Quarantine (prototype) | | | Java ME | Action | - |
| Alien Rage (Sep 18, 2013 prototype) | | | Xbox 360 | First-Person Shooter | - |
| Alien Resurrection (Apr 11, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 19, 1999 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 8, 2000 prototype) | | | PlayStation | First Person Shooter | - |
| Alien Resurrection (Dec 2, 1998 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Dec 21, 1999 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 2, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 26, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 4, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jan 5, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 14, 1999 Prototype) | | | PlayStation | | - |
| Alien Resurrection (Jul 19, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 29, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 31, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 4, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 5, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 7, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 24, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 7, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 9, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (May 12, 1999 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (May 26, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (May 30, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (May 6, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 2, 1998 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 26, 1999 Prototype) | | | PlayStation | Third Person Shooter | - |
| Alien Resurrection (Oct 19, 1998 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Oct 4, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Resurrection (Sep 1, 2000 prototype) | | | PlayStation | First-person shooter | - |
| Alien Syndrome (Apr 11, 2007 prototype) | | | PlayStation Portable | Shoot 'em up | - |
| Alien Syndrome (May 21, 2007 prototype) | | | Nintendo Wii | Action | - |
| Alien Syndrome (Prototype) | | | Sega Master System | Action | - |
| Alien Trilogy (Jul 23, 1996 prototype) | | | Sega Saturn | First-person shooter | - |
| Alien vs Predator (Apr 8, 1994 prototype) | | | Atari Jaguar | FPS | - |
| Alien vs Predator (Aug 18, 1993 prototype) | | | Atari Jaguar | FPS | - |
| Alien vs Predator (Dec 17, 1993 prototype) | | | Atari Lynx | Action | ✓ |
| Alien vs Predator (Oct 13, 1993 prototype) | | | Atari Jaguar | FPS | - |
| Alien: Isolation (Sep 27, 2014 prototype) | | | PC | Action-Adventure | - |
| Alien: Isolation (prototype) | | | PlayStation 3 | Action-Adventure | - |
| Aliens (GBA Tech demo) | | | Game Boy Advance | | ✓ |
| Aliens Versus Predator: Extinction (May 2, 2003 prototype) | | | Xbox | Real-Time Strategy | - |
| Aliens vs Predator (Jan 29, 1999 prototype) | | | PC | Shooter | - |
| Aliens vs. Predator (Aug 20, 2009 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Aug 3, 2009 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Dec 15, 2009 prototype) | | | Xbox 360 | First-person shooter | - |
| Aliens vs. Predator (Dec 2, 2009 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Feb 15, 2010 Patch Data prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Aliens vs. Predator (Jan 11, 2010 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Jul 13, 2009 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Jul 21, 2008 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (May 26, 2009 prototype) | | | Xbox 360 | FPS | - |
| Aliens vs. Predator (Nov 17, 2008 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Oct 6, 2008 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Alien 2 (Dec 15, 1986 prototype) | | | FDS | Action | ✓ |
| Aliens: Colonial Marines (Apr 10, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 12, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 16, 2012 01.11 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 16, 2012 15.53 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 17, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 18, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 19, 2012 08.19 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 19, 2012 19.27 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 2, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 20, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 23, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 25, 2012 08.35 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 25, 2012 21.15 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 26, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 27, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 3, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 30, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 5, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 6, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 10, 2012 01.14 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 10, 2012 06.34 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 11, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 14, 2012 01.46 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 14, 2012 23.54 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 15, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 16, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 17, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 19, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 21, 2012 00.07 prototype) | | | Xbox 360 | First-Person Shooter | - |
| Aliens: Colonial Marines (Aug 21, 2012 02.05 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 22, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 27, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 29, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 30, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 31, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 4, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 7, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 9, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 9, 2012 00.05 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 9, 2012 11.57 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 1, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 14, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 17, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 2, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 23, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 10, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 11, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 14, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 15, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 2, 2012 01.59 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 2, 2012 10.31 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 20, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 21, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 22, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 28, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 3, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 5, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 6, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 7, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 8, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 8, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2012 18.00 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2012 23.19 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Install Data prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Aliens: Colonial Marines (Jan 12, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 20, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 27, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 31, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 9, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 10, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 11, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 18, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 19, 2011 prototype) | | | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Jul 23, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 25, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 26, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 27, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 28, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 29, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 30, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 31, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2012 06.01 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2012 06.53 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 22, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 28, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 10, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 13, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 16, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 19, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 2, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 20, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 21, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 23, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 24, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 28, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 29, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 9, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 12, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 13, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 2, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 29, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 3, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 31, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 4, 2011 prototype) | | | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (May 4, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 7, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 8, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 1, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 13, 2012 16.24 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 13, 2012 20.35 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 15, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 16, 2011 10.29 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 16, 2011 14.27 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 17, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 19, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 2, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 21, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 29, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 29, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 7, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 10, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 15, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 22, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 23, 2012 10.29 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 23, 2012 21.03 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 24, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 3, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 5, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 8, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 9, 2012 06.43 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 9, 2012 21.38 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 13, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 24, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 25, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 29, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 30, 2011 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 6, 2012 prototype) | | | Xbox 360 | First Person Shooter | - |
| Aliens: Earth Assault (Jan 22, 2004 prototype) | | | PlayStation 2 | Tech demo | ✓ |
| All Kamen Rider: Rider Generation (Jun 2, 2011 prototype) | | | Nintendo DS | | - |
| All Round Hunter (Apr 16, 2010 prototype) | | | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Apr 20, 2010 prototype) | | | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Mar 5, 2010 prototype) | | | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (May 1, 2010 DLC Bows Big Game prototype) | | | Xbox 360 | | ✓ |
| All Star Cheer Squad 2 (Sep 23, 2009 prototype) | | | Nintendo Wii | Music/Rhythm | - |
| All Star Cheer Squad 2 (prototype) | | | Nintendo Wii | Music/Rhythm | - |
| All Star Soccer (May 26, 1997 prototype) | | | PlayStation | | - |
| All Star Tennis 2000 (Localization prototype) | | | Game Boy Color | Sports | - |
| All Star Tennis 2000 (Prototype) | | | Game Boy Color | Sports | - |
| All Star Tennis 2000 (Sep 13, 1999 prototype) | | | Game Boy Color | Sports | - |
| All Zombies Must Die! (Oct 10, 2011 prototype) | | | Xbox 360 | Shooter | - |
| All-Pro Football 2K8 (Jul 11, 2007 prototype) | | | Xbox 360 | Sports - Football | - |
| 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) | | | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 00.08 prototype) | | | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 prototype) | | | PlayStation 2 | Sports - Baseball | - |
| All-Star Baseball 2004 featuring Derek Jeter (Jan 20, 2003 prototype) | | | Xbox | Sports | - |
| All-Star Baseball 2005 featuring Derek Jeter (Feb 4, 2004 prototype) | | | Xbox | Sports | - |
| Allegiance (Nov 7, 1999 prototype) | | | PC | Simulation, strategy, action | - |
| Alligator People (prototype) | | | Atari 2600 | | ✓ |
| Alloyrun (Antaeus prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Alloyrun (Final build) | | | Commodore 64 | Shoot 'em up | ✓ |
| Alloyrun (Jan 1988 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Alloyrun (Jun 1988 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Alone In The Dark: The New Nightmare (Jan 31, 2001 prototype) | | | PlayStation | Adventure | - |
| Alone in the Dark (Apr 8, 2008 prototype) | | | Xbox 360 | Action Adventure | - |
| Alone in the Dark (May 6, 2008 prototype) | | | Xbox 360 | Action Adventure | - |
| Alone in the Dark (May 9, 2008 prototype) | | | Xbox 360 | Action Adventure | - |
| Alone in the Dark (Oct 1, 2008 prototype) | | | PlayStation 3 | Action Adventure | - |
| Alone in the Dark (Sep 26, 2008 prototype) | | | PlayStation 3 | Action Adventure | - |
| Alone in the Dark: One-Eyed Jack's Revenge (Mar 21, 1996 prototype) | | | Sega Saturn | Survival Horror | - |
| Alone in the Dark: The New Nightmare (Apr 9, 2001 prototype) | | | Dreamcast | Action-adventure | - |
| Alone in the Dark: The New Nightmare (February 21, 2001 prototype) | | | Game Boy Color | Action-adventure | - |
| Alone in the Dark: The New Nightmare (May 23, 2001 prototype) | | | Dreamcast | Survival | - |
| Alone in the Dark: The New Nightmare (Prototype) | | | Game Boy Color | Survival Horror | - |
| Alpha Beam with Ernie (Dec 22, 1982 prototype) | | | Atari 2600 | Edutainment | - |
| Alpha Beam with Ernie (May 5, 1983 prototype) | | | Atari 2600 | Edutainment | - |
| Alpha Mission (Japanese prototype) | | | NES | Shoot 'em up | - |
| Alpha Protocol (Mar 25, 2010 Preview Prototype) | | | Xbox 360 | Action role-playing | - |
| Alpha Protocol (March 25, 2010 Debug Prototype) | | | Xbox 360 | | - |
| Alpha Protocol (May 4, 2009 prototype) | | | Xbox 360 | Action role-playing | - |
| Alpine Racer 3 (Sep 2002 prototype) | | | PlayStation 2 | Racing | - |
| Alter Echo (Jun 4, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Altered Beast (Feb 25, 2009 prototype) | | | Xbox 360 | Action, Brawler, Platformer | - |
| Altered Beast (Mar 31, 2009 prototype) | | | Xbox 360 | Action, Brawler, Platformer | - |
| Altered Space: A 3-D Alien Adventure (Feb 15, 1991 prototype) | | | Game Boy | Adventure | - |
| Amazing Spider-Man vs The Kingpin (Jun 2, 1993 prototype) | | | Sega CD | Action | - |
| Ameisenbar (prototype) | | | Commodore 64 | Arcade | ✓ |
| America's Army: Rise of a Soldier (Oct 5, 2005 prototype) | | | Xbox | First Person Shooter | - |
| America's Army: Rise of a Soldier (Sep 9, 2005 prototype) | | | Xbox | First Person Shooter | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Apr 25, 2006 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Dec 10, 2005 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Dec 27, 2005 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Feb 7, 2006 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (May 22, 2006 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Nov 28, 2005 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Nov 3, 2005 prototype) | | | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Oct 4, 2005 prototype) | | | Game Boy Advance | | - |
| American Hero CD (Prototype) | | | Atari Jaguar CD | FMV | ✓ |
| American Idol (Mar 10, 2004 prototype) | | | Xbox | Music, Rhythm | ✓ |
| American McGee's Alice (Nov 27, 2000 prototype) | | | PC | Puzzle, Platformer, Action-Adventure | - |
| American McGee's Grimm (Oct 23, 2008 prototype) | | | PlayStation 3 | Action-adventure | ✓ |
| Amnesia (Dec 15, 1987 prototype) | | | BBC Micro | Platformer | ✓ |
| Amparo Museum (Jul 24, 1992 prototype) | | | Philips CD-i | Reference | - |
| Amped (Oct 17, 2001 prototype) | | | Xbox | Sports - Snowboarding | - |
| Amped 2 (Oct 2, 2003 prototype) | | | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 12, 2003 prototype) | | | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 22, 2003 prototype) | | | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 30, 2003 prototype) | | | Xbox | Extreme sports | - |
| Amped 3 (Oct 18, 2005 prototype) | | | Xbox 360 | Sports - Snowboarding | - |
| Amped: Freestyle Snowboarding (Jan 17, 2002 prototype) | | | Xbox | Sports, Snowboarding/Skiing | - |
| Amplitude (Feb 7, 2003 prototype) | | | PlayStation 2 | Rhythm | - |
| Amplitude (May 27, 2003 prototype) | | | PlayStation 2 | Music | - |
| Anachronox (May 13, 2001 Prototype) | | | PC | RPG | - |
| Ancient Wars: Sparta (Dec 19, 2006 demo) | | | PC | Strategy, Real-Time Strategy | - |
| Ancients of Ooga (April 27, 2010 prototype) | | | Xbox 360 | Puzzle | - |
| Ancients of Ooga (Dec 9, 2009 prototype) | | | Xbox 360 | Puzzle, Platformer | - |
| And Yet It Moves (Beta 0.1 Demo) | | | PC | Puzzle-Platformer | - |
| And Yet It Moves (Build 1.04) | | | PC | Puzzle-platformer | - |
| Andre Agassi Tennis (Prototype) | | | Game Gear | Sports - Tennis | - |
| Androman on the Moon (prototype) | | | Atari 2600 | | ✓ |
| Angels 2: Holy Night (Prototype) | | | TurboGrafx-CD | Adventure | ✓ |
| Angles (prototype A) | | | EXL 100 | Educational | - |
| Angles (prototype B) | | | EXL 100 | Educational | - |
| Angles (prototype C) | | | EXL 100 | Educational | - |
| Angles (prototype D) | | | EXL 100 | Educational | - |
| Angles (prototype E) | | | EXL 100 | Educational | - |
| Angles (prototype F) | | | EXL 100 | Educational | - |
| Angry Birds Trilogy (May 19, 2013 Patch Data prototype) | | | PlayStation 3 | Compilation, Puzzle | - |
| Angry Birds Trilogy (May 19, 2013 prototype) | | | PlayStation 3 | Compilation, Puzzle | - |
| Angry Birds: Star Wars (Sep 13, 2013 prototype) | | | PlayStation 3 | Puzzle | - |
| Angry Birds: Star Wars (Sep 19, 2013 prototype) | | | PlayStation 3 | Puzzle | - |
| Angry Birds: Star Wars (Sep 9, 2013 prototype) | | | PlayStation 3 | Puzzle | - |
| Animal Color Cross (Prototype) | | | Nintendo DS | | - |
| Animal Crossing: New Leaf (Jun 1, 2010 prototype) | | | Nintendo 3DS | Simulation | - |
| Animal Crossing: Wild World (Apr 10, 2006 EU Broadcast Version) | | | Nintendo DS | Life simulation | - |
| Animal Crossing: Wild World (Dec 22, 2005 USA Relay Version) | | | Nintendo DS | Life simulation | - |
| Animal Crossing: Wild World (Feb 2, 2006 EU Kiosk Demo) | | | Nintendo DS | Life simulation | - |
| Animal Revolt Battle Simulator (Jul 24, 2020 prototype) | | | PC | Sandbox Battle Simulator | - |
| Animaniacs (Jun 11, 1994 prototype) | | | SNES | Platformer | - |
| Animaniacs: Hollywood Hypnotics (Prototype) | | | Game Boy Advance | | ✓ |
| Anno 1404 - History Edition (Feb 10, 2009 Patch Data prototype) | | | PC | Strategy, Simulation | - |
| Anno 1404 - History Edition (Jan 28, 2009 prototype) | | | PC | Strategy, Simulation | - |
| Anomaly: Warzone Earth (Nov 25, 2011 prototype) | | | Xbox 360 | Real Time Strategy | - |
| Antz (Prototype) | | | Game Boy Color | Action | - |
| Ape Academy 2 (Jun 19, 2006 prototype) | | | PlayStation Portable | Minigame Collection | - |
| Ape Escape (Feb 9, 1999 prototype) | | | PlayStation | Action-adventure | - |
| Ape Escape 2 (Apr 8, 2003 prototype) | | | PlayStation 2 | Platformer | - |
| Ape Escape 2 (May 8, 2002 prototype) | | | PlayStation 2 | Action | - |
| Ape Escape 2 (Oct 28, 2002 prototype) | | | PlayStation 2 | Action | - |
| Ape Escape: On the Loose (Jan 20, 2005 prototype) | | | PlayStation Portable | Action, Platformer | - |
| Apex (Dec 18, 2002 prototype) | | | Xbox | Driving/Racing | - |
| Apocalypse (Jul 22, 1998 prototype) | | | PlayStation | Third-person shooter | - |
| Apocalypse II (Oct 28, 1997 prototype) | | | SNES | Shooter | ✓ |
| Apocalypse II (Prototype) | | | SNES | Shooter | ✓ |
| Apples to Apples (Jun 28, 2011 prototype) | | | Xbox 360 | Card Game | - |
| Apprentice (Commodore 64 prototype) | | | Commodore 64 | Platform | ✓ |
| Aqua (Apr 26, 2010 prototype) | | | Xbox 360 | Action shooter | - |
| Aqua (Jan 11, 2010 prototype) | | | Xbox 360 | Shoot 'Em Up | - |
| Aqua (Jan 12, 2010 prototype) | | | Xbox 360 | Shoot 'Em Up | - |
| Aqua (Nov 5, 2009 prototype) | | | Xbox 360 | Shoot 'Em Up | - |
| Aqua GT (Nov 16, 2000 prototype) | | | PlayStation | Racing | - |
| AquaZone (96 DLCs Pack prototype) | | | Xbox 360 | Simulation | - |
| AquaZone (Jul 31, 2006 prototype) | | | Xbox 360 | Simulation | - |
| Aquaventure (Aug 12, 1983 prototype) | | | Atari 2600 | | ✓ |
| Ar tonelico II: Melody of Metafalica (Sep 22, 2008 prototype) | | | PlayStation 2 | Role-playing | - |
| Ar tonelico: Melody of Elemia (Sep 13, 2006 prototype) | | | 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) | | | PlayStation | RPG | - |
| Arc the Lad: End of Darkness (Apr 22, 2005 prototype) | | | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: End of Darkness (Jan 11, 2005 prototype) | | | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: Twilight of the Spirits (Apr 1, 2003 prototype) | | | PlayStation 2 | Turn Based Tactics | - |
| Arc the Lad: Twilight of the Spirits (Aug 22, 2002 prototype) | | | PlayStation 2 | | - |
| Arc the Lad: Twilight of the Spirits (Feb 24, 2003 prototype) | | | PlayStation 2 | Turn Based Tactics | - |
| Arc the Lad: Twilight of the Spirits (Nov 18, 2003 prototype) | | | PlayStation 2 | | - |
| Arcade Classics (Sep 4, 1996 prototype) | | | Philips CD-i | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Apr 11, 1997 prototype) | | | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 10, 1997 prototype) | | | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 11, 1997 prototype) | | | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Nov 10, 1996 prototype) | | | PlayStation | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 2 (Jan 8, 1998 prototype) | | | PlayStation | Compilation | - |
| ArcadeSample (Jul 9, 2007 prototype) | | | Xbox 360 | Arcade | ✓ |
| ArcadeSample (Oct 11, 2007 prototype) | | | Xbox 360 | Sample | - |
| ArcadeSample (Oct 29, 2007 prototype) | | | Xbox 360 | Arcade | ✓ |
| Arcadia (Amiga prototype) | | | Amiga | Shoot 'em up | ✓ |
| Arcadia VI (Jun 24, 1991 prototype) | | | NES | Arcade/Compilation | ✓ |
| Arcana (prototype) | | | SNES | Dungeon crawl | - |
| Arcania: Gothic 4 (Mar 3, 2009 DLC Item Pack prototype) | | | Xbox 360 | Action role-playing | ✓ |
| Arcania: Gothic 4 (Mar 30, 2010 prototype) | | | Xbox 360 | Action role-playing | - |
| Arcanum: Of Steamworks & Magick Obscura (Mar 14, 2001 demo) | | | PC | | - |
| Arcanum: Of Steamworks & Magick Obscura (Oct 9, 2000 prototype) | | | PC | RPG | - |
| Arcatera: The Dark Brotherhood (Feb 24, 2000 prototype) | | | PC | | - |
| Archimedean Dynasty (Oct 11, 1996 prototype) | | | PC | | - |
| Archimedean Dynasty (Oct 16, 1996 prototype) | | | PC | | - |
| Archon (Prototype B) | | | NES | Strategy | - |
| Archon (Prototype) | | | NES | Strategy | - |
| Arctic Thunder (Aug 10, 2001 prototype) | | | PlayStation 2 | Racing | - |
| Ardy Lightfoot (prototype) | | | SNES | Platformer | - |
| Are You Smarter Than A 5th Grader? Make the Grade! (Aug 14, 2008 prototype) | | | Xbox 360 | Trivia/Board Game | - |
| Area 51 (Aug 4, 2004 prototype) | | | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Feb 25, 2005 prototype) | | | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Jul 11, 1996 prototype) | | | Sega Saturn | Rail Shooter | - |
| Area 51 (Jul 23, 2004 prototype) | | | Xbox | First-Person Shooter, Survival Horror | - |
| Area 51 (Jun 19, 1996 prototype) | | | Sega Saturn | Rail Shooter | - |
| Area 51 (Mar 9, 2005 prototype) | | | PlayStation 2 | First-person shooter | - |
| Area 51 (Nov 6, 1996 prototype) | | | Sega Saturn | Rail Shooter | - |
| Arena Football 95 (Prototype) | | | Atari Jaguar | Sports - Football | ✓ |
| Ares Rising (Mar 27, 1998 prototype) | | | PC | Action, Shooter | - |
| Aretha (prototype) | | | SNES | Role Playing | - |
| 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) | | | Sega Mega Drive | Adventure | - |
| Arkadian Warriors (Oct 6, 2007 prototype) | | | Xbox 360 | Action Aventure | - |
| Arkanoid II (Nov 11, 1987 prototype) | | | MSX2 | Puzzle | - |
| Arkanoid II (prototype B) | | | NES | Puzzle | - |
| Arkanoid II (prototype) | | | NES | Puzzle | - |
| Arkanoid Live! (Dec 12, 2008 DLC Episode Add-on Pack 1 prototype) | | | Xbox 360 | Puzzle | - |
| Arkanoid Live! (Dec 2, 2008 DLC Episode Add-on Pack 1 prototype) | | | Xbox 360 | Puzzle | - |
| Arkanoid Live! (Dec 23, 2008 prototype) | | | Xbox 360 | Puzzle | - |
| Arkyology (prototype) | | | Atari 2600 | | ✓ |
| ArmA: Combat Operations (Mar 26, 2007 demo) | | | PC | Action, Strategy, Simulation, First-Person Shooter, Vehicular Combat | - |
| Armalion (Dec 11, 2001 prototype) | | | PC | RPG | ✓ |
| Armalion (Sep 20, 2001 prototype) | | | PC | RPG | ✓ |
| Armalyte (Competition Edition) | | | Commodore 64 | Shoot 'em up | - |
| Armalyte II (V0.1 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Armalyte II (V0.2 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Armalyte II (V0.3 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Armalyte II (V0.4 prototype) | | | Commodore 64 | Shoot 'em up | ✓ |
| Armed (Jan 22, 1997 prototype) | | | Sega Saturn | Action | ✓ |
| Armed and Dangerous (Jul 16, 2003 prototype) | | | Xbox | Action-Adventure | - |
| Armed and Dangerous (Oct 13, 2003 prototype) | | | Xbox | Shooter | - |
| Armed and Dangerous (Sep 3, 2003 prototype) | | | Xbox | Action-Adventure | - |
| Armored Core (Jul 3, 1997 prototype) | | | PlayStation | Vehicular Combat | - |
| Armored Core 2 (Aug 29, 2000 prototype) | | | PlayStation 2 | Action | - |
| Armored Core 2 (Nov 13, 2000 prototype) | | | PlayStation 2 | Action | - |
| Armored Core 2: Another Age (Jun 8, 2001 prototype) | | | PlayStation 2 | Action | - |
| Armorines: Project S.W.A.R.M. (Oct 20, 1999 prototype) | | | PlayStation | | - |
| Army Men: Green Rogue (Feb 15, 2001 prototype) | | | PlayStation 2 | Action | - |
| Army Men: Lock 'n' Load (Jan 25, 2001 prototype) | | | PlayStation | Shoot 'em up | - |
| Army Men: Omega Soldier (Jan 25, 2001 prototype) | | | PlayStation | Shoot 'em up | - |
| Army Men: RTS (Oct 24, 2001 prototype) | | | PlayStation 2 | Real-time strategy | - |
| Army Men: Sarge's Heroes (Aug 22, 2000 prototype) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes (Aug 31, 2000 prototype) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes (Sep 14, 2000 prototype A) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes (Sep 14, 2000 prototype B) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes (Sep 6, 2000 prototype) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes (Sep 8, 2000 prototype) | | | Game Boy Advance | Third-person shooter | ✓ |
| Army Men: Sarge's Heroes 2 (Oct 19, 2000 prototype) | | | PlayStation | Third Person Shooter | - |
| Army Men: World War (Mar 14, 2000 prototype) | | | PlayStation | Third Person Shooter | - |
| Army of Two (DLC SSC Challenge Map Pack A prototype) | | | Xbox 360 | Action, Shooter | - |
| Army of Two (DLC SSC Challenge Map Pack B prototype) | | | Xbox 360 | Action, Shooter | - |
| Army of Two (Oct 7, 2007 prototype) | | | Xbox 360 | Third-person shooter | - |
| Army of Two (Sep 13, 2007 prototype) | | | Xbox 360 | Third-person shooter | - |
| Army of Two: The 40th Day (Aug 17, 2009 DLC Alpha Map Pack 1 prototype) | | | Xbox 360 | Action, Shooter | ✓ |
| Army of Two: The Devil's Cartel (Feb 21, 2013 prototype) | | | Xbox 360 | Third Person Shooter | - |
| Army of Two: The Devil's Cartel (Jan 25, 2013 Prototype) | | | Xbox 360 | Third Person Shooter | - |
| Army of Two: The Devil's Cartel (Jan 31, 2013 prototype) | | | Xbox 360 | Third-person shooter | - |
| Arnold Palmer Tournament Golf (Mar 22, 1990 prototype) | | | Sega Mega Drive | Sports | - |
| Around Hollywood (Apr 18, 1995 prototype) | | | Philips CD-i | FMV | ✓ |
| Art Alive (Sep 20, 1991 build) | | | Sega Mega Drive | Studio | - |
| Art of Fighting (Aug 1, 1994 prototype) | | | Sega Mega Drive | Fighter (2D) | - |
| Art of Fighting (Jul 11, 1994 prototype) | | | Sega Mega Drive | Fighter (2D) | - |
| Arthema (prototype) | | | Commodore 64 | Platformer | ✓ |
| Arthur and the Invisibles (Mar 19, 2007 prototype) | | | PlayStation Portable | Adventure, Arcade | - |
| Arthur and the Minimoys (Jan 17, 2007 prototype) | | | PlayStation Portable | | - |
| Arvoch Conflict (Jan 2, 2008 demo) | | | PC | Action, Simulation, Shooter | - |
| Arx Fatalis (Jul 11, 2003 prototype) | | | Xbox | Action role-playing game | - |
| Arx Fatalis (Sep 29, 2003 prototype) | | | Xbox | | - |
| Ascend: Hand of Kul (Oct 02, 2012 prototype) | | | Xbox 360 | Action, Role-Playing | - |
| Ashen (Mar 12, 2004 prototype) | | | N-Gage | Action | - |
| Asheron's Call 2: Fallen Kings (Aug 30, 2002 prototype) | | | PC | Action, Role-Playing, MMORPG | - |
| Asphalt 4: Elite Racing (EU A prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (EU B prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP JA prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR A prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR B prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR C prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (USA A prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (USA B prototype) | | | Nintendo DSi | Driving/Racing | - |
| Asphalt: Urban GT (Aug 19, 2004 prototype) | | | N-Gage | Racing | - |
| Assassin's Creed (Feb 15, 2008 prototype) | | | PC | Action | - |
| Assassin's Creed (Oct 16, 2007 prototype) | | | Xbox 360 | Action | - |
| Assassin's Creed Brotherhood (Oct 11, 2010 Review Prototype) | | | Xbox 360 | | - |
| Assassin's Creed II (Aug 19, 2009 prototype) | | | Java ME | Platformer, Action-Adventure | - |
| Assassin's Creed II (Nov 28, 2009 Install Data prototype) | | | PlayStation 3 | Platformer, Action-Adventure | - |
| Assassin's Creed III (Apr 17, 2012 Multiplayer prototype) | | | Xbox 360 | Action | - |
| Assassin's Creed III (E3 Demo) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III (EU Multiplayer Patch Data prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III (May 3, 2012 Multiplayer prototype) | | | Xbox 360 | Action | - |
| Assassin's Creed III (May 4, 2012 Multiplayer prototype) | | | Xbox 360 | Action | - |
| Assassin's Creed III (Sep 25, 2012 prototype) | | | Xbox 360 | Action | - |
| Assassin's Creed III (Sep 8, 2012 DLC Benedict Arnold prototype) | | | Xbox 360 | Action-Adventure | ✓ |
| Assassin's Creed III (Sep 8, 2012 Prototype A) | | | Xbox 360 | Action | - |
| Assassin's Creed III (Sept 8, 2012 Prototype B) | | | Xbox 360 | | - |
| Assassin's Creed III (USA Multiplayer Patch Data prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III: Liberation (Jun 4, 2018 prototype) | | | Xbox One | Action-Adventure | - |
| Assassin's Creed III: Liberation (Oct 7, 2013 Prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed III: Liberation (Sep 9, 2012 Prototype) | | | PlayStation Vita | Action-adventure, stealth | - |
| Assassin's Creed IV: Black Flag (Aug 22, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (DLC Aveline prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | ✓ |
| Assassin's Creed IV: Black Flag (EU Multiplayer Patch Data prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Feb 26, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Feb 28, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 15, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 18, 2013 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 19, 2013 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 20, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 22, 2013 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 23, 2013 PS3 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 23, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 24, 2013 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jun 28, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (May 14, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (May 16, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (May 17, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (May 7, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Oct 3, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Oct 4, 2013 prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (QCFINAL prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Sep 13, 2013 Multiplayer prototype) | | | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Sep 13, 2013 Prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (USA Multiplayer Patch Data prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed Syndicate (Sep 12, 2015 prototype) | | | PC | Action-Adventure | - |
| Assassin's Creed: Brotherhood (Apr 15, 2011 multiplayer prototype) | | | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 16, 2011 multiplayer prototype) | | | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 18, 2011 10 Multiplayer prototype) | | | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 18, 2011 17 Multiplayer prototype) | | | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Aug 16, 2010 Multiplayer prototype) | | | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 01.02 prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 02.01 A prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 02.01 B prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Oct 11, 2010 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Brotherhood (Oct 9, 2010 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Brotherhood (PAL Patch Data 02.01 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Brotherhood (PAL QA Patch Data 1.01 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Brotherhood (Sep 10, 2010 Multiplayer prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Sep 16, 2010 Multiplayer prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (USA Patch Data 01.02 prototype) | | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Revelations (Aug 23, 2011 Multiplayer prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed: Revelations (Aug 26, 2011 Multiplayer prototype) | | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed: Revelations (Feb 15, 2012 DLC4 PlaceHolder prototype) | | | Xbox 360 | Action Adventure | ✓ |
| Assassin's Creed: Revelations (Jan 19, 2012 DLC The Lost Archive prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Jun 20, 2011 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Mar 29, 2011 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Oct 5, 2011 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Sep 5, 2011 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 1, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 11, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 26, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 5, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Aug 20, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 22, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 25, 2014 A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 25, 2014 B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 26, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 28, 2014 Install Data prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 6, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Install Data A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Install Data B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 11, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 18, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 19, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 22, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 31, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 9, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (May 10, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (May 19, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (May 2, 2014 prototype) | | | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Activities Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Collectibles Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Resource Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Technology Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC The Templar Legacy Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 6, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 10, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 18, 2014 Prototype) | | | Xbox 360 | | - |
| Assassin's Creed: Rogue (Sep 21, 2014 prototype) | | | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 22, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 23, 2014 13.28 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 23, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 24, 2014 09.28 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 24, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 26, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 3, 2014 A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 3, 2014 B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 4, 2014 A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 4, 2014 B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 5, 2014 prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 8, 2014 A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 8, 2014 B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 9, 2014 A prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 9, 2014 B prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Strange Patch Data prototype) | | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue Assets of Incomplete Builds | | | PlayStation 3 | Action-Adventure | - |
| Assault Heroes (DLC TEST PACK 2 prototype) | | | Xbox 360 | Shoot Em Up | ✓ |
| Assault Heroes (Mar 30, 2007 prototype) | | | Xbox 360 | Shoot Em Up | - |
| Assault Heroes (Mar 4, 2008 prototype) | | | Xbox 360 | Shoot Em Up | - |
| Assault Heroes 2 (Mar 4, 2008 prototype) | | | Xbox 360 | Shoot Em Up | - |
| Assault Rigs (Jan 8, 1996 prototype) | | | PlayStation | Vehicular Combat | - |
| Assault Rigs (Oct 10, 1995 prototype) | | | PlayStation | Vehicular Combat | - |
| Assault: Retribution (Sep 3, 1998 prototype) | | | PlayStation | Action | - |
| Custom Maps | | | Xbox 360 | Golf | - |
| Packaging Sources | | | PlayStation 2 | Racing | - |
| Jun 22, 2000 Asset Disc | | | Dreamcast | | - |
| Inline POS | | | Unknown | | - |
| Documents | | | Unknown | FPS | - |
| E3 2009 Source Code Branch | | | Other | FPS | - |
| Alone In The Dark Making Of | | | Other | Action Adventure | - |
| Press Kit | | | PlayStation 2 | Music | - |
| Agetec PS2 Graphic Assets | | | PlayStation 2 | | - |
| Leftover Sep 20, 2013 Data | | | PlayStation 3 | Action Adventure | - |
| Fan Site Kit | | | Other | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| Battlefield 2142 Misc Assets | | | PC | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| Leftover Jan 29, 2014 Data | | | Xbox 360 | First Person Shooter | - |
| Leftover Jul 14, 2015 Data | | | Xbox 360 | First Person Shooter | - |
| Leftover Nov 3, 2015 Data | | | Xbox 360 | First Person Shooter | - |
| Leftover Patch Data | | | Xbox 360 | First Person Shooter | - |
| Leftover Sep 23, 2015 Data | | | Xbox 360 | First Person Shooter | - |
| BioShock 3D Assets | | | Brew | | - |
| Fan Site Kit | | | PC | Strategy, Simulation | - |
| Bully EPK | | | PlayStation 2 | Action-Adventure | - |
| Art Info | | | PlayStation 2 | | - |
| Bust-A-Groove Press CD | | | PlayStation | Rhythm | - |
| Oct 13, 2000 Press CD | | | PlayStation | | - |
| Call of Duty 2 Dev Maps | | | Xbox 360 | Action | - |
| Call of Duty Review Kit | | | N-Gage | FPS | - |
| Call Of Duty Black Ops Press Disc | | | Other | FPS | - |
| Capcom E3 2003 Press Disk | | | Other | | - |
| Design Document Mar 17, 2010 | | | Nintendo Wii | Party / Minigame | - |
| Close Combat: First to Fight New Gameplay Clips & Screenshots | | | Other | FPS | - |
| Fan Site Kit | | | Other | Real-Time Strategy | - |
| Assets Disc | | | PlayStation 2 | | - |
| Corporate & Technical Information and GT3 | | | Unknown | | - |
| Press Kit | | | Unknown | | - |
| Crash 3 and Spyro Artwork Disc | | | PlayStation | | - |
| Crash Bandicoot Warped Press Disc | | | PlayStation | Platform | - |
| Press CD | | | PlayStation | | - |
| Hi-res Disc August 99 | | | PlayStation | | - |
| Hi-res Disc July 99 | | | PlayStation | | - |
| Press Disc July 99 | | | PlayStation | | - |
| Press Disc November 99 | | | PlayStation | | - |
| Asset Disc | | | PlayStation 2 | | - |
| Crash and Spyro Fusion Code and Assets | | | Game Boy Advance | | - |
| Characters | | | PlayStation | Platform | - |
| DMA Design Miscellaneous Press Material | | | Other | | - |
| Class Trial Design Document | | | PlayStation Portable | Adventure, Visual Novel | - |
| Daily Life Document | | | PlayStation Portable | Adventure, Visual Novel | - |
| School Mode Design Document | | | PlayStation Vita | Adventure, Visual Novel | - |
| Daxter Press Disc | | | PlayStation Portable | Action | - |
| Assets Disk | | | Xbox 360 | Action-adventuresurvival horroropen world | - |
| Dead or Alive 2 Press Disc | | | PlayStation 2 | Fighting | - |
| December 99 Artwork Disc 1 | | | PlayStation | | - |
| Dementium II Design Documents | | | Nintendo DS | Survival horror, FPS | - |
| Press Disc | | | PlayStation | Racing | - |
| Deus Ex: Human Revolution Misc Assets | | | PlayStation 3 | Action role-playing | - |
| DiRT 3 Misc Assets | | | PlayStation 3 | Racing | - |
| DiRT Showdown + Inversion - Press Assets | | | Other | | - |
| DiRT Showdown Misc Assets | | | PlayStation 3 | Racing | - |
| Diablo III Beta Press Kit | | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Blizzcon 2010 Press Kit | | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Blizzcon 2011 Press Kit | | | PC | Role-Playing, Action-Adventure | - |
| Diablo III E3 2013 Press Kit | | | Other | Role-Playing, Action-Adventure | - |
| Diablo III Gamescom 2010 Press Kit | | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Launch Press Kit | | | PC | Role-Playing, Action-Adventure | - |
| Diablo III PAX East 2013 Press Kit | | | PlayStation 3 | Role-Playing, Action-Adventure | - |
| Dino 2 Playstation Source Code | | | PlayStation | | ✓ |
| Makai Senki Disgaea Digital Genga-shuu | | | PlayStation 2 | Tactical role-playing game, Entertainment, Speculative fiction, Fantasy, Societal | - |
| Electronic Press Kit | | | PlayStation 2 | | - |
| Character Renders | | | Other | | - |
| Art Disk | | | Other | Racing | - |
| Loose Assets from CL 364238 | | | Xbox 360 | Racing | - |
| ECTS 2002: Playstation Experience Presentation Disc | | | Unknown | | - |
| ECTS Press Disc SCEI | | | Unknown | | - |
| Message Files | | | SNES | RPG | - |
| Midway E3 2005 Disc | | | PlayStation 2 | | - |
| Eidos Digital Press Kit E3 1999 | | | PlayStation | | - |
| Docs, Images and Videos | | | Other | | ✓ |
| February 2000 Empyreal Assault Data | | | PC | RTS | ✓ |
| Press CD | | | PlayStation | | - |
| 2004-01-27 tech demo pitch | | | PlayStation 3 | | ✓ |
| Fable II Press Kit | | | Xbox 360 | Adventure | - |
| Fallout 3 Australia Press Event Assets | | | Other | Role-Playing, First-Person Shooter | - |
| Dec 3, 2009 to Apr 20, 2010 memory dumps | | | Xbox 360 | Action-adventure | - |
| Leftover Apr 17, 2010 Data | | | Xbox 360 | Action-adventure | - |
| Leftover Unknown Build Data | | | Xbox 360 | Action-adventure | - |
| Original Save Files | | | Xbox 360 | Action-adventure | - |
| Famitsu July Special Edition - E3 Special News! 2004 | | | Unknown | | - |
| Assets of Incomplete Builds | | | Other | First-Person Shooter | - |
| Leftover 2002 Far Cry Data | | | Unknown | FPS | - |
| Artwork CD | | | PlayStation | | - |
| Launch in Japan CD | | | PlayStation 2 | | - |
| Teasers | | | Nintendo Wii | | ✓ |
| Frogger 2 Dev Archives | | | PC | Action | - |
| Alpha Kit | | | Xbox 360 | Racing | - |
| GRID 2 Misc Assets | | | PlayStation 3 | Driving/Racing | - |
| GameNation E3 2002 Media Kit | | | Other | | - |
| NintendoGamecubePreview | | | Other | | - |
| Gangs of London Press Disc | | | PlayStation Portable | Action | - |
| Gears of War Microsoft's Internal Archive Leak | | | Other | Third-person shooter | - |
| Leftover Sep 21, 2006 Data | | | Xbox 360 | Third Person Shooter | - |
| Media Kit | | | Unknown | Third Person Shooter | - |
| Gran Turismo 2 Disc 2 Press CD | | | PlayStation | Racing | - |
| Gran Turismo 2000 Press Disc | | | PlayStation 2 | Racing | - |
| Gran Turismo 3 A-spec Artwork - January 2001 | | | PlayStation 2 | Racing | - |
| Gran Turismo 3 A-spec Car Guide Imagery | | | PlayStation 2 | Racing | - |
| Gran Turismo 3 A-spec Work In Progress Press Disc | | | PlayStation 2 | Racing | - |
| Gran Turismo Press Disc | | | PlayStation | Racing | - |
| Deutsch-Exclusive EPK | | | Xbox 360 | Action, Shooter | - |
| Last Area Assets | | | Xbox 360 | Action, Shooter | - |
| Leftover Feb 29, 2008 Data | | | Xbox 360 | Action, Shooter | - |
| Leftover Sep 10, 2007 Data | | | Xbox 360 | Action, Shooter | - |
| CarsonGT Extracted Assets | | | PlayStation 3 | Driving/Racing, Action-Adventure | - |
| Cloud Cache Files | | | PlayStation 3 | Driving/Racing, Action-Adventure | - |
| cnh devkit leftovers assets | | | PlayStation 3 | Driving/Racing, Action-Adventure | - |
| Grand Theft Auto: San Andreas EPK | | | Other | Action | - |
| Grand Theft Auto: Vice City EPK | | | Other | Driving/Racing, Shooter, Action-Adventure | - |
| Half-Life 2 E3 2003 Footage CD | | | PC | Shooter | - |
| Haven: Call of the King Press Disk | | | Other | | - |
| Heavy Rain Asset Disc | | | PlayStation 3 | Interactive drama, action-adventure | - |
| Hexplore 1997 ECTS Preview Assets Disk | | | PC | Role-playing video game, action, adventure, puzzle | - |
| In Cold Blood Press CD | | | PlayStation | Action-adventure game | - |
| Apr 17, 2000 Press CD | | | PlayStation | | - |
| Invizimals: The Lost Kingdom Unplayable Builds | | | PlayStation 3 | Action-Adventure | - |
| Manual Sources | | | PC | | - |
| Jimmy Neutron vs. Jimmy Negatron GBA Assets | | | Game Boy Advance | Action | - |
| Jimmy Neutron vs. Jimmy Negatron GBA Source Code | | | Game Boy Advance | Action | - |
| PC Design Document | | | PC | Action | - |
| Juiced Demo Press Kit | | | Other | Racing | - |
| Juiced SHOW OFF MOVIES July 2004 Press Kit | | | Other | Racing | - |
| Juiced Shystie Internal Press Kit | | | Other | Racing | - |
| Juiced VARIOUS ARTWORKS 1st July 2004 Press Kit | | | Other | Racing | - |
| June 2000 Artwork Update 2 | | | PlayStation | | - |
| FATX-Recover Assets | | | Xbox 360 | Third person cover shooter | - |
| Killzone 2 Press Kit | | | PlayStation 3 | First-person shooter | - |
| Killzone: Liberation Press Disk | | | PlayStation Portable | FPS | - |
| Sep 2006 Source Code | | | Xbox 360 | Action RPG | - |
| Konami Artwork - Various Titles | | | PlayStation | | - |
| Konami E3 2003 Electronic Press Kit | | | Other | | - |
| Konami E3 2004 Press Asset Disc | | | Other | | - |
| Konami Tokyo Game Show 2004 Asset Disc | | | Other | | - |
| LEGO Batman 3: Beyond Gotham Press Kit | | | Other | Platformer, Action-Adventure | - |
| Print Preview Assets | | | Xbox 360 | | - |
| Eidos Assets | | | PlayStation 2 | Action Adventure | - |
| Data tape | | | EXL 100 | Educational | - |
| Left 4 Dead Zero DEV | | | PC | | - |
| Left 4 Dead Assets for Media | | | Other | Action, First-Person Shooter | - |
| Press Kit | | | Other | Action | - |
| FMV Assets | | | Other | | ✓ |
| Nov 28, 2008 Milestone 1 Documents | | | Nintendo Wii | | ✓ |
| Pitch Documents | | | Nintendo DS | | ✓ |
| Amiga asset disks | | | Amiga | Platformer | ✓ |
| LittleBigPlanet 2 Concept Archive | | | PlayStation 3 | | - |
| LittleBigPlanet 2 Misc Assets | | | PlayStation 3 | Puzzle-platformer | - |
| LittleBigPlanet Media Assets | | | PlayStation 3 | | - |
| Asset Disc | | | PlayStation 3 | | - |
| LittleBigPlanet Assets of Incomplete Builds | | | PlayStation 3 | Platform | - |
| LittleBigPlanet Concept Archive | | | PlayStation 3 | | - |
| PSP Greenlight Presentation | | | PlayStation Portable | Puzzle-platformer | - |
| Lollipop Chainsaw Press Disk | | | Other | Action | - |
| Press Kit | | | PlayStation 2 | | - |
| Electronic Press Kit | | | PlayStation 2 | | - |
| Mario Kart: Double Dash!! Press Kit (French) | | | Other | | - |
| x devmode.ras | | | Other | Shooter, Action-Adventure | - |
| Dec 16, 1999 Press CD | | | PlayStation | | - |
| January 2000 Press CD | | | PlayStation | | - |
| Midnight Club 3: DUB Edition New Official Trailer and Screenshots | | | Other | Driving/Racing | - |
| Midnight Club 3: DUB Edition Official Trailer and Screenshots | | | Other | Driving/Racing | - |
| Midnight Club 3: DUB Edition Screenshots from the Website | | | Other | Driving/Racing | - |
| Dec 17, 2014 source code | | | PlayStation Vita | Action | - |
| Jan 1, 2016 source code | | | Other | Action | - |
| Oct 10, 2014 source code | | | Other | Action | - |
| ModNation Racers Misc Assets | | | PlayStation 3 | Driving/Racing, Vehicular Combat | - |
| Leftover Sep 1, 2010 Data | | | Xbox 360 | Action | - |
| Artwork Disc | | | Nintendo 64 | | - |
| Mountain Bike Adrenaline Press Kit | | | Other | Sports | - |
| Press Kit | | | PlayStation | Sports - Basketball | - |
| NINTENDO ツブヨリディスク GAME RUSH! 2002 Autumn → Winter DVD | | | Unknown | | - |
| Tekken Tag Tournament | | | PlayStation 2 | Fighting | - |
| Tekken Tag Tournament and Ridge Racer V | | | PlayStation 2 | Fighting; Racing | - |
| Various | | | PlayStation | | - |
| Namco Press CD PS2 Titles | | | PlayStation 2 | | - |
| Leftover Jul 20, 2012 Data | | | PlayStation 3 | Racing | - |
| Need for Speed: Most Wanted 2012 Misc Assets | | | PlayStation 3 | Racing | - |
| Next Generation PlayStation Images March 1999 | | | PlayStation 2 | | - |
| Asset CD | | | PlayStation 2 | | - |
| Nintendo DREAM - Wii E3 2006 Report | | | Unknown | | - |
| PRESS CD SCEE Playstation 2 Software Line-Up | | | PlayStation 2 | | - |
| PS1 & PS2 Monthly Artwork Disc April 2001 | | | Unknown | | - |
| PS1 December Monthly Artwork Disc | | | PlayStation | | - |
| PS1 Hi-Res Disc May 2000 | | | PlayStation | | - |
| PS1 Monthly Artwork Disc August 2000 | | | PlayStation | | - |
| PS1 Monthly Artwork Disc February 2000 | | | PlayStation | | - |
| PS1 Monthly Artwork Disc July 2000 | | | PlayStation | | - |
| PS2 Corporate Images: The PS2 Manufacturing Process | | | PlayStation 2 | | - |
| PS2 Hi-Res Artwork Disc August 2000 | | | PlayStation 2 | | - |
| PS2 Hi-Res Artwork Disc July 2000 | | | PlayStation 2 | | - |
| PS2 Hi-Res Artwork Disc September 2000 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc April 2002 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc April 2002 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc August 2000 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc August 2001 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc August 2001 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc August 2001 Disc 3 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc August 2001 Disc 4 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2000 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 3 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 4 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 5 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2001 Disc 6 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc December 2003 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc February 2002 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc January 2001 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc July 2000 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc July 2001 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc July 2001 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc June 2001 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc June 2001 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc June 2003 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc October 2000 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc October 2002 Disc 1 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc October 2002 Disc 2 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc October 2003 | | | PlayStation 2 | | - |
| PS2 Monthly Artwork Disc September 2000 | | | PlayStation 2 | | - |
| PS2 Press-Kit Spring 2001 | | | PlayStation 2 | | - |
| PSP Press Disc | | | PlayStation Portable | | - |
| PlayStation 3 Kiosk: Updater 5 | | | Unknown | | - |
| PlayStation E3 2000 Press Disc 1 | | | PlayStation | | - |
| PlayStation ECTS Autumn & Winter 1999 | | | PlayStation | | - |
| Data | | | PlayStation 3 | | - |
| Development Kits | | | Other | | - |
| Old Asset Archive | | | Other | Action, First-Person Shooter | - |
| Power Source (ECTS 98 Press CD 1) | | | PlayStation | | - |
| Power Source (ECTS 98 Press CD 2) | | | PlayStation | | - |
| Power Source Spring Summer 1999 Press CD | | | PlayStation | | - |
| Pre E3 Kit 2005 | | | Other | | - |
| Primal Press Disc | | | PlayStation 2 | Action-adventure | - |
| Primal Video Demo Disc | | | PlayStation 2 | Action-adventure | - |
| Pro Evolution Soccer 2011 Misc Assets | | | PlayStation 3 | Sports, Soccer | - |
| Psygnosis Artwork Update Dec 3, 1999 | | | PlayStation | | - |
| Quake II 3.21. Source Code | | | Other | FPS | - |
| R.B.I. Baseball '94 Sega Mega Drive Source Code | | | Sega Mega Drive | Sports, Baseball | - |
| RTX Red Rock Art Asset June 2003 | | | PlayStation 2 | Action Adventure | - |
| Rage The Making Of (French) | | | Other | First-person shooter, vehicular combat | - |
| Launch Press Kit | | | PlayStation 2 | | - |
| Summer 99 Digital Press Kit | | | PlayStation | | - |
| Rayman 3 Art Disc | | | Other | Platform | - |
| May 2001 Press Kit | | | Game Boy Advance | | - |
| Rayman Legends Unplayable Builds | | | Other | Platform | - |
| Red Dead Revolver Capcom Press Kit | | | Other | Action-adventure | - |
| Ridge Racer Type 4 Press Disc | | | PlayStation | Racing | - |
| Press CD | | | PlayStation | | - |
| Press Kit | | | Unknown | | - |
| Leftover Oct 11, 2008 Data | | | Xbox 360 | Rhythm | - |
| Leftover Jan 6, 2012 Data | | | Xbox 360 | Rhythm | - |
| Leftover Sep 22, 2008 Data | | | Xbox 360 | Music/Rhythm | - |
| Marketing Materials | | | PC | Third Person Shooter | - |
| SCEE E3 May 2001 Press Information | | | Other | | - |
| SCEE Software 2002 | | | PlayStation 2 | | - |
| SOCOM 4: U.S. Navy SEALs Cache Files | | | PlayStation 3 | Action, Shooter | - |
| Asset Disk | | | Other | Action Adventure | - |
| San Diego Third Party Product Review April 2002 | | | Unknown | | - |
| Manual Sources | | | PC | FPS | - |
| European Tour 2005 | | | PlayStation 2 | | - |
| Press Kit | | | Unknown | | - |
| Asset Disc | | | Other | Survival horror | - |
| Generated Data | | | PlayStation 3 | Music, Rhythm | - |
| Press Kit | | | PlayStation 2 | | - |
| Leftover prototype | | | PlayStation 3 | | ✓ |
| Spore Fansite Kit | | | Other | Strategy, Adventure, Simulation | - |
| Hi-Res Disc July 99 | | | PlayStation | | - |
| Press Disc July 99 | | | PlayStation | | - |
| Spyro and Crash Fusion Code and Emulator | | | Game Boy Advance | | - |
| PAL Press CD | | | PlayStation | | - |
| StarCraft II: Wings of Liberty Launch Press Kit | | | PC | Real-time strategy | - |
| Leftover Feb 2, 2010 Data | | | PlayStation 3 | Third-person shooter | - |
| GDD v.1.5 BD 9-25-2007 | | | Other | | ✓ |
| Unity NP Toolkit Plugin Extension Source Code | | | PlayStation 4 | Action, Role-Playing, Shooter | - |
| Level Pack | | | Game Boy Color | | ✓ |
| Take-Two Interactive: 2001 EPK: Electronic Press Kit | | | Other | | - |
| Tales from the Borderlands Old Assets | | | Other | Adventure | - |
| Dave Pinkney Backup 1 | | | Other | Platformer | - |
| Dave Pinkney Backup 2 | | | Other | Platformer | - |
| Milestone 10 Assets | | | Other | Platformer | - |
| Milestone 14 Assets | | | Other | Platformer | - |
| Milestone 15 Assets | | | Other | Platformer | - |
| Team Fortress 2 Assets of Incomplete Builds | | | PC | First Person Shooter | - |
| Tekken: Dark Resurrection Press Disk | | | PlayStation Portable | Fighting | - |
| Press Disc | | | Other | Sports, Driving/Racing | - |
| The Bouncer Press Disc | | | PlayStation 2 | Beat 'em up | - |
| Interactive Demonstration | | | Unknown | | - |
| The Fight: Lights Out Assets | | | PlayStation 3 | Fighting | - |
| Press Disc | | | PlayStation 2 | | - |
| Press Disk | | | PlayStation 2 | Action-Adventure | - |
| The House of the Dead: Overkill Announcement Asset Disk | | | Nintendo Wii | Shooter | - |
| The Last of Us Misc Assets | | | PlayStation 3 | Action-adventure | - |
| Game Boy and NES source code | | | NES | Platformer | - |
| Fan Site Kit | | | PC | Strategy, Real-Time Strategy | - |
| PR Asset Discs | | | PlayStation 2 | | - |
| Press Assets 2003 | | | PlayStation 2 | | - |
| The Sims 2 Exclusive Woolworths Preview Disc | | | Other | Simulator | - |
| The Sims 2 Press Kit | | | PC | Simulator | - |
| Leftover Jul 20, 2010 Data | | | Xbox 360 | Simulation | - |
| Leftover Misc Builds | | | Xbox 360 | Simulation | - |
| Art Disk | | | Other | Tactical shooter, Strategy video game | - |
| PS2 Character Art | | | PlayStation 2 | | - |
| PS2 Screenshots | | | PlayStation 2 | | - |
| Source Code | | | Other | Sports - Skateboarding | - |
| July 2006 Design Document | | | Nintendo Wii | Action | - |
| GBA Source Code | | | Game Boy Advance | Racing | ✓ |
| Trials Fusion Assets of Incomplete Builds | | | PlayStation 4 | Driving/Racing, Platformer | - |
| Art Disc | | | PlayStation | | - |
| UFO: Aftershock Fansite Kit | | | PC | Strategy, Role-Playing | - |
| Misc Assets | | | PlayStation 3 | Action-adventure, third-person shooter | - |
| Uncharted 2: Among Thieves Media Disk | | | PlayStation 3 | Action-adventure, third-person shooter | - |
| Uncharted: Drake’s Fortune Press Disk | | | PlayStation 3 | Shooter | - |
| Universal Interactive Studios Confidential Asset Disc | | | PlayStation 2 | | - |
| Unreal II: eXpanded MultiPlayer Source Code | | | Other | Action | - |
| Leftover prototype | | | PlayStation 3 | Adventure | - |
| Press Disc | | | Other | | - |
| August 2000 Press Kit | | | PlayStation | Rhythm | - |
| May 22, 2000 Press CD | | | PlayStation | | - |
| WRC II Extreme Press Materials September 2002 | | | PlayStation 2 | Racing | - |
| Disc CD | | | PlayStation 2 | Fighting | - |
| Press Disc | | | PlayStation 3 | Action, Flight Simulator | - |
| Artwork Materials | | | PlayStation | Racing | - |
| Asset CD | | | Xbox | | - |
| Xbox 360 + Games for Windows - Press Kit - Games Convention 2007 | | | Other | | - |
| Zenith Design & Report Documents (1995-1996) | | | PC | Action, Strategy | ✓ |
| Asterix & Obelix XXL (Feb 25, 2004 prototype) | | | 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) | | | Game Gear | Action Platformer | - |
| Asterix (Feb 22, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Asterix (Jan 25, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Asterix (Jul 27, 1983 prototype) | | | Atari 2600 | | - |
| Asterix (Localization prototype) | | | Game Boy | Platformer | - |
| Asterix (Mar 11, 1993 prototype) | | | SNES | Action | - |
| Asterix (Mar 15, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Asterix (Mar 16, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Asterix (Mar 3, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Asterix (Prototype A) | | | Game Boy | Action | - |
| Asterix (Prototype B) | | | Game Boy | Action | - |
| Asteroids & Deluxe (Oct 3, 2007 prototype) | | | Xbox 360 | Shoot em Up | - |
| Asteroids (Atari 5200 prototype) | | | Atari 5200 | Shoot 'em up | ✓ |
| Asteroids (Atari 7800 prototype) | | | Atari 7800 | Shoot 'em up | - |
| Asteroids (Aug 12, 1982 prototype) | | | Atari 5200 | Shoot 'em up | ✓ |
| Asteroids (Game Boy Prototype) | | | Game Boy | Arcade | - |
| Asteroids 2000 (Jul 20, 1994 prototype) | | | Atari Jaguar | Shooter | ✓ |
| Astro Boy: The Video Game (Jul 27, 2009 prototype) | | | 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) | | | Xbox 360 | Puzzle | - |
| Astrocade (Aug 1, 1994 prototype) | | | Sega Saturn | Puzzle | ✓ |
| Astromine (Supportware demo) | | | Commodore 64 | Platformer | ✓ |
| Astropop (Unknown prototype) | | | Xbox 360 | Puzzle | - |
| Astérix & Obélix XXL 2: Mission: Las Vegum (Feb 25, 2005 prototype) | | | PlayStation 2 | Action | - |
| Asura's Wrath (Dec 2, 2011 prototype) | | | PlayStation 3 | Action | - |
| AtSimple DS Series Vol. 1: The Misshitsu kara no Dasshutsu (prototype) | | | Nintendo DSi | Trivia/Board Game | - |
| Atari Classics Evolved (Oct 1, 2007 prototype) | | | PlayStation Portable | Compilation | - |
| Atari Classics Evolved (Oct 31, 2007 prototype) | | | PlayStation Portable | Compilation | - |
| Atari Karts (Prototype) | | | Atari Jaguar | Racing | - |
| Atari Masterpieces Volume 1 (Aug 3, 2005 prototype) | | | N-Gage | Compilation | - |
| Atelier Iris 2: The Azoth of Destiny (Feb 7, 2006 prototype) | | | PlayStation 2 | Role-playing | - |
| Atelier Iris 2: The Azoth of Destiny (Mar 6, 2006 prototype) | | | PlayStation 2 | Role-playing | - |
| Atelier Iris: Eternal Mana (Apr 8, 2005 prototype) | | | PlayStation 2 | Role-playing | - |
| Atelier Iris: Eternal Mana (May 12, 2005 prototype) | | | PlayStation 2 | RPG | - |
| Athens 2004 (Apr 14, 2004 prototype) | | | PlayStation 2 | Sports - Athletics | - |
| Athletic Piggy Party (Apr 21, 2008 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 23, 2008 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 24, 2008 16.44 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 24, 2008 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 25, 2008 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (May 8, 2008 16.57 prototype) | | | Nintendo Wii | Party | - |
| Athletic Piggy Party (May 8, 2008 prototype) | | | Nintendo Wii | Party | - |
| Atlantis no Nazo (Prototype) | | | NES | Action | - |
| Atlantis: The Last Resort (Sep 18, 1996) | | | Philips CD-i | FMV | ✓ |
| Atmosfear (Jul 12, 1994 prototype) | | | SNES | Action | ✓ |
| Atom Smasher (prototype) | | | Atari 2600 | | ✓ |
| Atomic Betty (Prototype) | | | Game Boy Advance | Action | - |
| Austin Powers: Why Make Millions... (Sep 2, 2000 prototype) | | | Game Boy Color | Compilation | ✓ |
| Austin Powers: Yeah, Baby, Yeah! (Sep 11, 2000 prototype) | | | Game Boy Color | Compilation | ✓ |
| Australian Rugby League (Prototype) | | | Sega Mega Drive | Sports - Rugby | - |
| Auto Destruct (Oct 15, 1997 prototype) | | | PlayStation | Vehicular Combat | - |
| Auto Modellista (Dec 10, 2002 prototype) | | | PlayStation 2 | Racing | - |
| Auto Modellista (Jan 27, 2003 prototype) | | | PlayStation 2 | Racing | - |
| Avatar Superstars Poker (Jul 31, 2010 prototype) | | | Xbox 360 | Poker | ✓ |
| Avatar: The Last Airbender (Jul 10, 2007 prototype) | | | Nintendo DS | Action | ✓ |
| Avatar: The Last Airbender - The Burning Earth (Jul 20, 2007 prototype) | | | 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) | | | Sega Mega Drive | Platform | - |
| Awesomenauts (Nov 9, 2011 prototype) | | | Xbox 360 | Real Time Strategy | - |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | | | Game Gear | Role Playing | - |
| Axel & Pixel (Oct 3, 2009 prototype) | | | Xbox 360 | Adventure | - |
| Ayrton Senna's Super Monaco GP II (Prototype) | | | Game Gear | Racing | - |
| Azure Dreams (Apr 23, 1998 prototype) | | | PlayStation | Role Playing | - |
| Azure Dreams (Jan 13, 1998 prototype) | | | PlayStation | Role Playing | - |
| B Team - Episode 1: Dust & Steel (Jun 2, 2011 prototype) | | | Nintendo DSi | Shooter | - |
| B Team - Episode 2: Ice & Venom (May 5, 2011 prototype) | | | Nintendo DSi | Action | - |
| B-17: Fortress in the Sky (Prototype) | | | Nintendo DS | Air combat | - |
| B-Boy (Jul 31, 2006 prototype) | | | PlayStation 2 | Music | - |
| B-Boy (May 29, 2006 prototype) | | | PlayStation 2 | Music | - |
| B.C. Kid 2 (Game Boy prototype) | | | Game Boy | Platformer | - |
| B.O.B. (Prototype) | | | Sega Mega Drive | Action | - |
| BBC Learning RAW Numbers (prototype) | | | Nintendo DS | | ✓ |
| BBC Sport (Jun 20, 2012 prototype) | | | PlayStation 3 | | - |
| BC Racers (April 11, 1995 Prototype) | | | Sega 32X | Racing | - |
| BC Racers (Sep 29, 1995 Prototype) | | | 3DO | Sports | - |
| BCG XBLA Test (Jul 7, 2010 utility) | | | Xbox 360 | | ✓ |
| BIONICLE: The Legend of Mata Nui (Jul 24, 2001 prototype) | | | PC | Action | ✓ |
| BIONICLE: The Legend of Mata Nui (Oct 23, 2001 prototype) | | | PC | Action | ✓ |
| BIT.TRIP Presents: Runner2: Future Legend of Rhythm Alien (Jan 23, 2013 prototype) | | | Xbox 360 | Action, Music/Rhythm, Platformer | - |
| BIT.TRIP Presents: Runner2: Future Legend of Rhythm Alien (Kiosk demo) | | | PlayStation 3 | Action, Music/Rhythm, Platformer | - |
| BMX 4 (Nov 8, 2002 prototype) | | | Xbox | | - |
| BMX XXX (Oct 29, 2002 prototype) | | | PlayStation 2 | Sports - Biking | - |
| BMX XXX (Oct 9, 2002 prototype) | | | PlayStation 2 | Sports - Biking | - |
| BPS®: The Hunt (DLC Bonus Gear In-Game Content prototype) | | | Xbox 360 | | ✓ |
| BROK the InvestiGator (Prologue 1.07 Demo) | | | PC | | - |
| BROK the InvestiGator (Prologue 1.14 Demo) | | | PC | | - |
| Baby Boom (Aug 11, 1994 prototype) | | | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 3, 1994 prototype) | | | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 6, 1994 prototype) | | | Sega Mega Drive | Misc | ✓ |
| 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 | ✓ |
| Babylon 5: Into the Fire (Sep 21, 1999 prototype) | | | PC | | ✓ |
| Back 4 Blood (Jul 3, 2021 prototype) | | | Xbox One | First-Person Shooter | - |
| Back To Bed (July 20, 2015 Prototype) | | | PlayStation Vita | Puzzle Video Game, Indie game, Action game, Casual game | - |
| Back at the Barnyard: Slop Bucket Games (Jun 2, 2008 prototype) | | | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Jun 20, 2008 prototype) | | | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Jun 30, 2008 prototype) | | | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Mar 20, 2008 prototype) | | | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (May 5, 2008 prototype) | | | Nintendo DS | Action | - |
| Back to Stone (Prototype) | | | Game Boy Advance | Action | - |
| Backbreaker (DLC Test Stadium Pack 2 prototype) | | | Xbox 360 | Sports | ✓ |
| Backbreaker (DLC Test prototype) | | | Xbox 360 | Sports | ✓ |
| Backbreaker (Nov 11, 2009 prototype) | | | Xbox 360 | Sports | - |
| Backbreaker (Nov 27, 2009 prototype) | | | Xbox 360 | Sports | - |
| Backbreaker: Vengeance (May 26, 2011 prototype) | | | Xbox 360 | Football | - |
| Backstreet Billiards (Sep 7, 1998 prototype) | | | PlayStation | Billiards | - |
| Backup LIB sample (1.04) | | | Game Boy Advance | | - |
| Backyard Heroes (Dec 18, 2013 prototype) | | | Xbox 360 | Action | ✓ |
| Backyard Heroes (Dec 2, 2013 prototype) | | | Xbox 360 | Action | ✓ |
| Backyard Heroes (Oct 21, 2013 prototype) | | | Xbox 360 | Action | ✓ |
| Backyard Heroes (Sep 30, 2013 prototype) | | | Xbox 360 | Action | ✓ |
| Backyard Wrestling 2: There Goes the Neighborhood (Jul 27, 2004 prototype) | | | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 13, 2003 prototype) | | | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 14, 2003 prototype) | | | Xbox | Wrestling | - |
| Bad News Baseball (Prototype) | | | NES | Sports - Baseball | - |
| Baja Mania (Dec 14, 2006 prototype) | | | PlayStation 2 | Racing | ✓ |
| Baja Mania (Sep 25, 2006 prototype) | | | PC | Racing | ✓ |
| Baja: Edge of Control (Aug 3, 2008 prototype) | | | Xbox 360 | Racing | - |
| Baja: Edge of Control (Jul 26, 2008 DLC Back Pack prototype) | | | Xbox 360 | Racing | ✓ |
| Baja: Edge of Control (Jul 26, 2008 DLC Skin Pack prototype) | | | Xbox 360 | Racing | ✓ |
| Baja: Edge of Control (May 27, 2008 prototype) | | | Xbox 360 | Racing | - |
| Baku Baku Animal: World Zookeeper Contest (Apr 26, 1996 prototype) | | | Sega Saturn | Puzzle | - |
| Bakuryu (Nov 27, 1999 prototype) | | | PlayStation | Sports - Kayaking | - |
| Bakushou!! Jinsei Gekijou (Early prototype) | | | NES | Board | - |
| Bakushou!! Jinsei Gekijou (Oct 13, 1988 prototype) | | | NES | Board | - |
| Baldur's Gate (Oct 4, 2000 prototype) | | | PlayStation | Roleplaying | ✓ |
| Baldur's Gate 3 (Oct 2, 2020 prototype) | | | PC | Role-Playing | - |
| Baldur's Gate: Dark Alliance (Jun 22, 2002 prototype) | | | Xbox | Action-RPG | - |
| Baldur's Gate: Dark Alliance (Oct 14, 2002 prototype) | | | Nintendo GameCube | Role Playing | - |
| Baldur's Gate: Dark Alliance (Oct 7, 2001 prototype) | | | PlayStation 2 | Role-playing | - |
| Ball Breakers (Oct 24, 2000 prototype) | | | Dreamcast | Action | ✓ |
| Ball Busters (Prototype) | | | Gizmondo | Action | ✓ |
| Ball-Job (prototype) | | | Commodore 64 | Puzzle | ✓ |
| Ballz 3D: Fighting at Its Ballziest (Japanese Prototype) | | | SNES | Fighting | - |
| Ballz 3D: Fighting at Its Ballziest (Prototype) | | | SNES | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (June prototype) | | | Sega Mega Drive | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (September build) | | | Sega Mega Drive | Fighting | - |
| Baltron (prototype) | | | NES | Shoot 'em up | - |
| Banana (Earlier prototype) | | | NES | Puzzle | - |
| Banana (Jun 30, 1986 prototype) | | | NES | Puzzle | - |
| Band of Bugs (DLC Map Pack 1 prototype) | | | Xbox 360 | Strategy | - |
| Band of Bugs (DLC Map Pack 2 prototype) | | | Xbox 360 | Strategy | - |
| Bandfuse: Rock Legends (Dec 14, 2013 prototype) | | | Xbox 360 | Rhythm | - |
| Bandfuse: Rock Legends (Feb 4, 2014 prototype) | | | Xbox 360 | Rhythm | - |
| Bandfuse: Rock Legends (Sep 30, 2013 prototype) | | | Xbox 360 | Rhythm | - |
| Bang Bang Racing (Oct 26, 2011 prototype) | | | Xbox 360 | Racing | - |
| Bangai-O (Apr 14, 2000 prototype) | | | Dreamcast | Shooter | - |
| Bangai-O HD: Missile Fury (Dec 14, 2010 prototype) | | | Xbox 360 | Shoot 'em up | - |
| Banjo-Kazooie (December 16, 1997 debug disk A) | | | Nintendo 64DD | Platformer | - |
| Banjo-Kazooie (December 16, 1997 debug disk B) | | | Nintendo 64DD | Platformer | - |
| Banjo-Kazooie (Sep 10, 2008 prototype) | | | Xbox 360 | Platformer | - |
| 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-Kazooie: Nuts & Bolts (Oct 16, 2008 prototype) | | | Xbox 360 | Action | - |
| Banjo-Kazooie: Nuts & Bolts (Sep 18, 2008 prototype) | | | Xbox 360 | Action | - |
| Banjo-Pilot (Sep 29, 2004 prototype) | | | Game Boy Advance | Racing | - |
| Banjo-Pilot (Voxel prototype) | | | Game Boy Advance | Racing | - |
| Bankshot Billiards 2 (Jan 18, 2007 prototype) | | | Xbox 360 | Billiards | - |
| Bankshot Billiards 2 (Mar 1, 2007 prototype) | | | Xbox 360 | Billiards | - |
| Bankshot Billiards 2 (Nov 6, 2005 prototype) | | | Xbox 360 | Billiards | - |
| Barbarian (Apr 13, 2001 GBA prototype) | | | Game Boy Advance | Fighting | ✓ |
| Barbarian (Jul 24, 2001 prototype) | | | PlayStation 2 | Action | - |
| Barbarian (Jun 20, 2001 GBA prototype) | | | Game Boy Advance | Fighting | ✓ |
| Barbie & Her Sisters: Puppy Rescue (Aug 31, 2015 prototype) | | | Nintendo 3DS | | - |
| Barbie & Her Sisters: Puppy Rescue (Jun 10, 2015 prototype) | | | Nintendo 3DS | | - |
| Barbie & Her Sisters: Puppy Rescue (Sep 23, 2015 prototype) | | | Xbox 360 | Adventure | - |
| Barbie & Her Sisters: Puppy Rescue (Sep 7, 2015 Prototype) | | | Xbox 360 | Adventure | - |
| Barbie Super Model (Jun 30, 1993 prototype) | | | Sega Mega Drive | Adventure | - |
| Barbie Super Model (Prototype) | | | Game Gear | Action | ✓ |
| Barbie and the Magic of Pegasus (Apr 15, 2005 prototype) | | | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Feb 18, 2005 prototype) | | | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Jan 21, 2005 prototype) | | | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Mar 18, 2005 prototype) | | | Game Boy Advance | | - |
| 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) | | | Sega Mega Drive | Adventure | - |
| Barnyard (Prototype) | | | Game Boy Advance | Action | - |
| Barotrauma (Aug 17, 2015 prototype) | | | PC | Strategy, Simulation | - |
| Barotrauma (Sep 6, 2019 prototype) | | | PC | Strategy, Simulation | - |
| Bases Loaded (Dec 16, 1987 prototype) | | | NES | Sports - Baseball | - |
| Bashi Bazook: Morphoid Masher (May 29, 1989 prototype) | | | NES | Action-adventure | - |
| Basketball Nightmare (Prototype A) | | | Sega Master System | Action | - |
| Basketball Nightmare (Prototype B) | | | Sega Master System | Action | - |
| Bass Circuit Pro (May 4, 2003 prototype) | | | Xbox | Fishing | ✓ |
| Bass Landing (Aug 5, 1999 prototype) | | | PlayStation | Fishing | - |
| Bass Masters 2000 (Prototype) | | | Nintendo 64 | Fishing | - |
| Bastion (prototype A) | | | Xbox 360 | Action RPG | - |
| Bastion (prototype B) | | | Xbox 360 | Action RPG | - |
| Batman & Robin (Jun 8, 1998 prototype) | | | PlayStation | Action Adventure | - |
| Batman (Aug 1989 prototype) | | | NES | Action | - |
| Batman (Earlier prototype) | | | NES | Action | - |
| Batman (Software Creations prototype) | | | SNES | Beat 'em up | ✓ |
| Batman (US prototype) | | | Sega Mega Drive | Beat 'em up | - |
| Batman Begins (May 1, 2005 prototype) | | | Nintendo GameCube | Action | - |
| Batman Forever (NAPALM prototype) | | | SNES | Action | - |
| Batman Forever: The Arcade Game (Oct 28, 1996 prototype) | | | PC | Arcade | - |
| Batman Returns (Apr 23, 1993 prototype) | | | Sega CD | Action | - |
| Batman Returns (PAL prototype) | | | NES | Action | - |
| Batman Returns (SNES prototype) | | | SNES | Action | - |
| Batman: Arkham Asylum (Aug 5, 2009 demo) | | | PlayStation 3 | Action-adventure | - |
| Batman: Arkham Asylum (Dec 11, 2007 Prototype) | | | Xbox 360 | Action-adventure | - |
| Batman: Arkham Asylum (Dec 14, 2009 demo) | | | PlayStation 3 | Action-adventure | - |
| Batman: Arkham Asylum (Feb 13, 2009 DLC Prey in the Darkness Map Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (Feb 14, 2009 A DLC Prey in the Darkness Map Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (Feb 14, 2009 B DLC Prey in the Darkness Map Pack prototype) | | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (Jul 31, 2009 demo) | | | PlayStation 3 | Action-adventure | - |
| Batman: Arkham Asylum (prototype) | | | Nintendo DS | Action-adventure | ✓ |
| Batman: Arkham City (Jan 20, 2012 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham City (Jul 13, 2013 prototype) | | | PC | Action-Adventure | - |
| Batman: Arkham City (May 17, 2012 demo) | | | PlayStation 3 | Action Adventure | - |
| Batman: Arkham City (May 8, 2012 demo) | | | PlayStation 3 | Action Adventure | - |
| Batman: Arkham City (Sep 6, 2011 DLC Catwoman Bundle Pack prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham City (Sep 6, 2011 DLC Nightwing Bundle Pack prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham City (Sep 6, 2011 DLC Robin Bundle Pack prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham City (Sep 6, 2011 DLC Skins Pack prototype) | | | Xbox 360 | Action Adventure | ✓ |
| Batman: Arkham City (Sep 6, 2011 DLC The Joker’s Carnival Challenge Map prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Knight (Jun 21, 2015 prototype) | | | PC | Action-Adventure | - |
| Batman: Arkham Knight (May 26, 2015 prototype) | | | PC | Action-Adventure | - |
| Batman: Arkham Knight (Nov 17, 2015 prototype) | | | PC | Action-Adventure | - |
| Batman: Arkham Origins (Apr 15, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Apr 17, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Apr 25, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 1, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 10, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 13, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 14, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 15, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 16, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 16, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 17, 2012 03.25 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 17, 2012 13.05 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 18, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 19, 2013 16.53 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 19, 2013 18.50 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 2, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 24, 2013 19.41 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 24, 2013 23.40 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 29, 2013 03.15 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 29, 2013 14.44 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 3, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 7, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 8, 2013 01.58 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 8, 2013 23.38 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 9, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 00.34 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 12.26 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 14.15 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 16.09 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 09.25 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 11.13 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 13.02 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 15.30 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 18.15 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 01.22 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 B Multiplayer prototype) | | | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 15, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 17, 2012 12.29 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 17, 2012 14.18 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 18, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 3, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 5, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 01.32 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 13.03 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 7, 2012 10.20 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 7, 2012 16.14 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Feb 1, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Feb 14, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jan 20, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jan 30, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 11, 2013 Multiplayer Prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 13, 2012 15.45 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 13, 2012 18.52 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 14, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 16, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 16, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 2, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 23, 2013 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 7, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 9, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 1, 2013 04.06 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 12, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 13, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 15, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer B prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2013 02.32 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2013 20.26 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 22, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2012 10.39 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2012 12.38 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 26, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 4, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 8, 2013 03.25 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 8, 2013 13.57 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 1, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 16.02 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 18.55 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 21.28 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 12, 2013 11.59 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 12, 2013 13.28 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 13, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 14, 2013 07.18 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 14, 2013 14.59 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 15, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 2, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 10, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 11, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 13, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 14, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 15, 2013 12.20 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 15, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 16, 2013 00.33 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 16, 2013 16.14 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 2, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 23, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 30, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 31, 2013 12.38 Multiplayer prototype) | | | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (May 31, 2013 12.56 Multiplayer prototype) | | | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (May 31, 2013 20.03 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 8, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 9, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 1, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 11, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 14, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 15, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 16, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 15.58 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 17.42 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 19.58 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 21.33 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 21, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 22, 2013 Multiplayer prototype) | | | PlayStation 3 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (Nov 23, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 3, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 17.05 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 18.36 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 21.28 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 12.05 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 13.43 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 16.10 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 19.22 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 10.30 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.14 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.15 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.59 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 7, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 8, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 11, 2012 Disc Swap Test prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 16, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 18, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 5, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 8, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 10, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 11, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 12, 2013 17.05 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 12, 2013 19.49 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 15, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 03.59 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 06.42 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 11.47 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 13.42 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 19, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 2, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 20, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 21, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 23, 2013 18.59 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 23, 2013 23.44 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 27, 2012 12.41 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 27, 2012 13.41 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 3, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 30, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 4, 2013 02.46 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 4, 2013 17.45 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 5, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 6, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 7, 2012 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 8, 2013 Multiplayer prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer Xbox 360 prototype) | | | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer prototype) | | | PlayStation 3 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins Blackgate (May 30, 2013 Prototype) | | | PlayStation Vita | Action-adventure, beat 'em up, stealth, Metroidvania | - |
| Batman: Dark Tomorrow (Aug 25, 2002 prototype) | | | Nintendo GameCube | Action-adventure | - |
| Batman: Dark Tomorrow (Feb 26, 2003 prototype) | | | 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) | | | PlayStation 2 | Beat-em-Up | - |
| Batman: Vengeance (Aug 29, 2001 prototype) | | | PlayStation 2 | Action | - |
| Battle (prototype) | | | Commodore 64 | Platformer | ✓ |
| Battle Arena Toshinden URA (Nov 7, 1996 prototype) | | | Sega Saturn | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 1, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 13, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 19, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 27, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 31, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Jul 19, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 10, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 13, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 17, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 8, 2004 prototype) | | | PlayStation 2 | Fighting | - |
| Battle Ball (prototype A) | | | Commodore 64 | Shoot 'em up | ✓ |
| Battle Ball (prototype B) | | | Commodore 64 | Shoot 'em up | ✓ |
| Battle Ball (prototype C) | | | Commodore 64 | Shoot 'em up | ✓ |
| Battle Ball (prototype D) | | | Commodore 64 | Shoot 'em up | ✓ |
| Battle Battle League (1992 prototype) | | | FDS | Fighting | - |
| Battle Blaze (Prototype A) | | | SNES | Fighting | - |
| Battle Blaze (Prototype B) | | | SNES | Fighting | - |
| Battle Fantasia (Apr 9, 2008 prototype) | | | Xbox 360 | Fighting | - |
| Battle Mania (May 28, 1991 prototype) | | | Sega Mega Drive | Shooter | - |
| Battle Master: Kyuukyoku no Senshi-tachi (Prototype) | | | SNES | Fighting | - |
| Battle Out Run (Prototype) | | | Sega Master System | Action | - |
| Battle Rage: Mech Conflict (Feb 5, 2009 prototype) | | | Nintendo Wii | Shooter | - |
| Battle Ships (Prototype) | | | Game Boy | Action | - |
| Battle Squadron (Jan 18, 1991 prototype) | | | Sega Mega Drive | Shooter | - |
| Battle Wings (Prototype) | | | Sega Master System | Shooters | - |
| Battle vs. Chess (Feb 6, 2012 prototype) | | | PlayStation Portable | Board game | ✓ |
| Battle: Los Angeles (Feb 14, 2011 prototype) | | | Xbox 360 | Shooter | - |
| Battle: Los Angeles (Feb 18, 2011 prototype) | | | Xbox 360 | Shooter | - |
| Battle: Los Angeles (Feb 28, 2011 Prototype) | | | Xbox 360 | FPS | - |
| Battle: Los Angeles (Feb 28, 2011 prototype) | | | Xbox 360 | First-Person Shooter | - |
| Battle: Los Angeles (Feb 7, 2011 prototype) | | | Xbox 360 | Shooter | - |
| Battle: Los Angeles (Jan 31, 2011 prototype) | | | Xbox 360 | Shooter | - |
| BattleBlock Theater (Feb 6, 2013 prototype) | | | Xbox 360 | Puzzle, Platformer, Action-Adventure | - |
| BattleBots (Alpha 4.6 prototype) | | | Nintendo GameCube | Action | ✓ |
| BattleSport (May 11, 1995 prototype) | | | 3DO | Sports | - |
| BattleSport (Sep 22, 1995 prototype) | | | 3DO | Sports | - |
| Battlecorps (Feb 11, 1994 prototype) | | | Sega CD | Action | - |
| Battlecruiser 3000AD (Nov 8, 1995 prototype) | | | PC | Space trading and combat simulator | - |
| Battlefield 1943 (Jun 24, 2009 prototype) | | | Xbox 360 | FPS | - |
| Battlefield 1943 (Jun 3, 2009 prototype) | | | Xbox 360 | FPS | - |
| Battlefield 1943 (Mar 18, 2009 prototype) | | | PlayStation 3 | Action, First-Person Shooter, Vehicular Combat | - |
| Battlefield 1943 (May 13, 2009 prototype) | | | Xbox 360 | Shooter | - |
| Battlefield 1943 (May 26, 2009 prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield 2 (May 21, 2005 demo) | | | PC | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| Battlefield 2: Modern Combat (Aug 15, 2005 prototype) | | | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Aug 17, 2005 prototype) | | | Xbox | Action-RPG | - |
| Battlefield 2: Modern Combat (Aug 2005 demo) | | | Xbox | Action | - |
| Battlefield 2: Modern Combat (Aug 25, 2005 demo) | | | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Feb 14, 2006 EU prototype) | | | Xbox 360 | FPS | - |
| Battlefield 2: Modern Combat (Feb 14, 2006 USA prototype) | | | Xbox 360 | FPS | - |
| Battlefield 2: Modern Combat (Jan 20, 2005 prototype) | | | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Sep 17, 2005 prototype) | | | PlayStation 2 | First Person Shooter | - |
| Battlefield 3 (Aug 8, 2011 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (DLC HD Texture Pack prototype) | | | Xbox 360 | FPS | - |
| Battlefield 3 (Jan 25, 2013 Patch Data prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat Franchises: Battlefield | - |
| Battlefield 3 (Jul 13, 2011 Multiplayer prototype) | | | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Jul 27, 2011 Multiplayer prototype) | | | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Nov 3, 2011 Patch Data prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Oct 1, 2011 prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 22, 2011 Multiplayer prototype) | | | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 7, 2011 EU Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 7, 2011 Multiplayer prototype) | | | Xbox 360 | FPS | - |
| Battlefield 3 (Sep 7, 2011 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 4 (DLC Final Stand prototype) | | | Xbox 360 | First-Person Shooter | - |
| Battlefield 4 (Jun 18, 2013 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield 4 (Jun 24, 2013 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield 4 (Jun 3, 2013 Multiplayer prototype) | | | Xbox 360 | FPS | - |
| Battlefield 4 (Jun 6, 2013 Multiplayer prototype) | | | Xbox 360 | FPS | - |
| Battlefield 4 (Oct 14, 2013 prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Oct 8, 2013 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield 4 (Oct 9, 2013 prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 EU Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 JP Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 17, 2013 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 24, 2013 Multiplayer prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield Hardline (Apr 22, 2014 Install Data prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Aug 24, 2014 prototype) | | | PlayStation 3 | First-person shooter | - |
| Battlefield Hardline (Dec 10, 2014 Install Data prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Dec 4, 2014 prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 17, 2015 Multiplayer prototype) | | | Xbox 360 | Tactical | - |
| Battlefield Hardline (Jan 20, 2015 EU Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 20, 2015 JP Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 20, 2015 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 31, 2015 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield Hardline (Jun 15, 2014 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield Hardline (Jun 3, 2014 Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield: Bad Company (Apr 25, 2008 prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company (DLC Weapon Unlock 1 display name prototype) | | | Xbox 360 | Action, First-Person Shooter | ✓ |
| Battlefield: Bad Company (EU demo) | | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (JP demo) | | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (Sep 18, 2009 Patch Data prototype) | | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (USA demo) | | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company 2 (3 DLCs Pack prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company 2 (A Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield: Bad Company 2 (ASIA Multiplayer demo) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (B Multiplayer prototype) | | | PC | First-Person Shooter | - |
| Battlefield: Bad Company 2 (DLC VIP prototype) | | | Xbox 360 | First Person Shooter | ✓ |
| Battlefield: Bad Company 2 (EU Multiplayer demo) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Jan 17, 2010 prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Jan 18, 2010 prototype) | | | Xbox 360 | First-person shooter | - |
| Battlefield: Bad Company 2 (Nov 2, 2010 prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company 2 (Nov 20, 2009 EU Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Nov 20, 2009 USA Multiplayer prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Patch Data prototype) | | | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA Limited Edition prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA prototype) | | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (USA Multiplayer demo) | | | PlayStation 3 | First-Person Shooter | - |
| Battlestar Galactica (Aug 22, 2003 prototype) | | | Xbox | Space Flight Simulator | - |
| Battlestar Galactica (Aug 8, 2007 prototype) | | | Xbox 360 | Action | - |
| Battlestar Galactica (Jul 31, 2007 DLC Expansion 1 prototype) | | | Xbox 360 | Action | ✓ |
| Battlestar Galactica (Sep 21, 2007 prototype) | | | Xbox 360 | Action | - |
| Battlestar Galactica (Sep 29, 2003 prototype) | | | PlayStation 2 | Space Flight Simulator | - |
| Battlestations: Pacific (DLC Volcano Map Pack prototype) | | | Xbox 360 | Action | - |
| Battlestations: Pacific (Mar 12, 2009 prototype) | | | Xbox 360 | Action | - |
| Battlestorm (Amstrad CPC prototype) | | | Amstrad CPC | Shoot 'em up | ✓ |
| Battletech: Gray Death Legion (Jan 5, 1995 prototype) | | | Sega CD | Shooter | ✓ |
| Battletoads (GBA prototype) | | | Game Boy Advance | Beat 'em up, platformer | ✓ |
| Battletoads (Prototype) | | | NES | Beat em Up | - |
| Battletoads in Battlemaniacs (prototype) | | | SNES | Beat 'em up, platformer | - |
| Battlezone (Aug 28, 2006 prototype) | | | PlayStation Portable | Vehicular Combat | - |
| Battlezone (Feb 18, 1998 prototype) | | | PC | | - |
| Battlezone (Feb 9, 1998 prototype) | | | PC | | - |
| Battlezone (May 12, 1983 prototype) | | | Atari 2600 | | - |
| Battlezone (May 2, 1983 prototype) | | | Atari 2600 | | - |
| Battlezone (Oct 2, 2007 prototype) | | | Xbox 360 | Action | - |
| Battlezone (Sep 13, 2006 prototype) | | | PlayStation Portable | Vehicular Combat | - |
| Bayonetta (Jun 10, 2009 prototype) | | | Xbox 360 | Action | - |
| Bayonetta (May 24, 2009 prototype) | | | Xbox 360 | Action | - |
| Beach Volleyball (Apr 21, 2000 prototype) | | | PlayStation | | - |
| Beach'n Ball (Nov 21, 2000 prototype) | | | Game Boy Color | Sports - Volleyball | - |
| Bear Game (prototype) | | | Atari 2600 | | ✓ |
| Beast (Rasmus prototype A) | | | Commodore 64 | | ✓ |
| Beast (Rasmus prototype B) | | | Commodore 64 | | ✓ |
| Beast Wrestler (Sep 13, 1991 prototype) | | | Sega Mega Drive | Fighting | - |
| Beastball (Prototype) | | | Sega Mega Drive | Action | ✓ |
| Beat Down: Fists of Vengeance (Jul 2, 2005 prototype) | | | PlayStation 2 | Beat-em-Up | - |
| Beat Down: Fists of Vengeance (Jul 3, 2005 prototype) | | | Xbox | Action-RPG, Beat-Em-Up | - |
| Beat Down: Fists of Vengeance (May 11, 2005 prototype) | | | PlayStation 2 | Beat-em-Up | - |
| Beat'n Groovy (May 13, 2008 prototype) | | | Xbox 360 | Rhythm | - |
| Beaterator (Aug 7, 2009 prototype) | | | PlayStation Portable | Music | - |
| Beaterator (Jan 21, 2009 prototype) | | | PlayStation Portable | Music | - |
| Beaterator (May 13, 2009 prototype) | | | PlayStation Portable | Music | - |
| Beautiful Katamari (DLC prototype) | | | Xbox 360 | Action, Puzzle | ✓ |
| Beautiful Katamari (Sep 2, 2007 prototype) | | | Xbox 360 | Action | - |
| Beauty Guide (Apr 4, 1995 prototype) | | | Philips CD-i | FMV | ✓ |
| Beavis and Butt-Head (Game Gear Prototype) | | | Game Gear | Action | - |
| Beavis and Butt-Head Do Hollywood (Mar 4, 1998 prototype) | | | PlayStation | | ✓ |
| Beavis and Butt-Head Do Hollywood (Nov 1, 1998 prototype) | | | PlayStation | | ✓ |
| Beavis and Butt-Head Do Hollywood (Nov 10, 1998 prototype) | | | PlayStation | | ✓ |
| Beavis and Butt-Head Do Hollywood (Sep 2, 1998 prototype) | | | PlayStation | | ✓ |
| Bee Movie Game (Jul 27, 2007 prototype) | | | Xbox 360 | Action, Adventure | - |
| Beethoven's 2nd (Sep 13, 1993 prototype) | | | SNES | Action | - |
| Beethoven's 2nd: The Quest for Pups (Prototype) | | | Sega Mega Drive | Action | ✓ |
| Beetlejuice (Prototype) | | | NES | Platformer | - |
| Beijing 2008 (Aug 22, 2008 prototype) | | | Xbox 360 | Sports | - |
| Beijing 2008 (Jun 24, 2008 prototype) | | | Xbox 360 | Sports | - |
| Beijing 2008 (Mar 27, 2008 prototype) | | | Xbox 360 | Sports | - |
| Bejeweled 2 Deluxe (Nov 8, 2005 prototype) | | | Xbox 360 | Puzzle | - |
| Bellator MMA Onslaught (April 11, 2013 Prototype) | | | Xbox 360 | Fighting | - |
| Ben 10 (Aug 5, 2007 prototype) | | | PC | Action-Adventure | ✓ |
| Ben 10 Alien Force: The Rise of Hex (Apr 7, 2010 prototype) | | | Xbox 360 | Puzzle | - |
| Ben 10 Alien Force: The Rise of Hex (Mar 8, 2010 prototype) | | | Xbox 360 | Platformer | - |
| Ben 10 Ultimate Alien: Cosmic Destruction (prototype) | | | Nintendo DS | Action, Brawler, Action-Adventure | - |
| Beowulf: The Game (Oct 22, 2007 prototype) | | | PlayStation Portable | Action | - |
| Berenstain Bears (Aug 1, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype A) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 12, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 13, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 14, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 19, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 20, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 24, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 25, 1994 prototype B) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype B) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 27, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 15, 1994 prototype B) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 21, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 22, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 27, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears (Jun 28, 1994 prototype) | | | Game Gear | Action Platformer | - |
| Berenstain Bears' A School Day (Dec 20, 1994 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 13, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 16, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 26, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 27, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 30, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 31, 1995 prototype) | | | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 6, 1995 prototype) | | | Sega Pico | Educational | - |
| Berserk: Millennium Falcon Hen Seima Senki no Shou (Jul 12, 2004 prototype) | | | PlayStation 2 | Action | - |
| Bert The Barbarian (Nov 15, 2000 demo) | | | PC | | ✓ |
| Best of the Best: Championship Karate (Prototype A) | | | SNES | Fighting | - |
| Best of the Best: Championship Karate (Prototype B) | | | SNES | Fighting | - |
| Bet on Soldier: Blood Sport (May 30, 2005 prototype) | | | PC | Action, Shooter, First-Person Shooter | - |
| Beyblade V-Force: Ultimate Blader Jam (Prototype) | | | Game Boy Advance | Action | - |
| Beyond (Sep 12, 2005 prototype) | | | Xbox | Third-person shooter | ✓ |
| Beyond Divinity (Feb 26, 2004 demo) | | | PC | RPG | - |
| Beyond Good & Evil (Aug 14, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Oct 13, 2003 prototype) | | | PlayStation 2 | | - |
| Beyond Good & Evil (Sep 15, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Sep 9, 2003 prototype) | | | PlayStation 2 | Action Adventure | - |