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| Date | System | Genre | Unreleased | |
|---|---|---|---|---|
| Crysis 2 (May 26, 2010 prototype) | 26 May 2010 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Nov 11, 2010 prototype) | 11 November 2010 00:13:57 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Nov 24, 2010 prototype) | 24 November 2010 16:11:45 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Sep, 7, 2010 Multiplayer Prototype) | July 2010 | Xbox 360 | FPS | - |
| Crysis 3 (Apr 15, 2013 prototype) | 15 April 2013 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Apr 4, 2013 prototype) | 4 April 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Apr 6, 2013 prototype) | 6 April 2013 23:21:00 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Apr 7, 2013 prototype) | 7 April 2013 23:20:04 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 10, 2012 prototype) | 10 August 2012 13:14:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 6, 2012 11.34 prototype) | 6 August 2012 11:34:17 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 6, 2012 13.28 prototype) | 6 August 2012 13:28:51 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 13, 2012 Prototype) | 13 December 2012 12:55:51 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 14, 2012 15.59 Multiplayer prototype) | 14 December 2012 15:59:07 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 14, 2012 19.21 Multiplayer prototype) | 14 December 2012 19:21:46 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 16, 2011 prototype) | 16 December 2011 15:47:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 17, 2012 Prototype) | 17 December 2012 02:21:10 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 2, 2012 prototype) | 2 December 2012 12:49:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 20, 2012 3.08 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 20, 2012 3.18 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 21, 2012 prototype) | 21 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 27, 2012 Prototype) | 27 December 2012 00:48:46 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 8, 2011 prototype) | 8 December 2011 01:13:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Feb 5, 2013 prototype) | 5 February 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Feb 8, 2013 prototype) | 8 February 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 15, 2013 07.09 Prototype) | 15 January 2013 07:09:29 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 15, 2013 10.05 prototype) | 15 January 2013 10:05:52 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 27, 2012 prototype) | 27 January 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 4, 2013 Multiplayer Prototype) | 4 January 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 4, 2013 prototype) | 4 January 2013 17:01:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jan 5, 2013 JP prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 5, 2013 USA prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 5, 2013 prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 8, 2013 prototype) | 8 January 2013 13:04:39 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 16, 2011 prototype) | 16 July 2011 01:05:06 | Xbox 360 | FPS | - |
| Crysis 3 (Jul 17, 2012 prototype) | 17 July 2012 00:15:31 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 19, 2012 prototype) | 19 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 2, 2012 prototype) | 2 July 2012 23:50:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 24, 2012 prototype) | 24 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 3, 2012 prototype) | 3 July 2012 08:08:10 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 17, 2012 prototype) | 17 May 2012 23:34:20 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 20, 2012 prototype) | 20 May 2012 23:33:05 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 23, 2012 00.31 prototype) | 23 May 2012 00:31:21 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 23, 2012 12.59 prototype) | 23 May 2012 12:59:01 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 29, 2012 Prototype) | 29 May 2012 | Xbox 360 | FPS | - |
| Crysis 3 (May 30, 2012 prototype) | 30 May 2012 03:15:08 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 31, 2012 prototype) | 31 May 2012 03:06:32 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Nov 1, 2012 prototype) | 1 November 2012 02:53:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Nov 22, 2012 prototype) | 22 November 2012 13:07:57 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 15, 2012 prototype) | 15 October 2012 01:46:52 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 19, 2011 prototype) | 19 October 2011 11:22:31 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 20, 2011 00.06 prototype) | 20 October 2011 00:06:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 20, 2011 11.21 prototype) | 20 October 2011 11:21:46 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 24, 2012 prototype) | 24 October 2012 01:46:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 29, 2012 prototype) | 29 October 2012 | Xbox 360 | First-Person Shooter | - |
| Crysis 3 (Oct 3, 2011 prototype) | 3 October 2011 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 9, 2012 prototype) | 9 October 2012 01:42:17 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 19, 2011 prototype) | 19 September 2011 00:29:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 20, 2011 prototype) | 20 September 2011 08:23:10 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 21, 2011 prototype) | 21 September 2011 01:08:25 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 22, 2011 prototype) | 22 September 2011 01:10:59 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 23, 2011 prototype) | 23 September 2011 01:09:39 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 27, 2012 prototype) | 27 September 2012 11:45:58 | Xbox 360 | First Person Shooter | - |
| Crystal Castles (Jan 4, 1984 prototype) | Atari 2600 | - | ||
| Crystal Quest (Sep 13, 2007 prototype) | 13 September 2007 | Xbox 360 | Shoot Em Up | - |
| Crystal's Pony Tale (Jul 1, 1994 prototype) | 1 July 1994 07:22:54 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype B) | 13 July 1994 05:28:42 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype) | 12 July 1994 12:06:52 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 13, 1994 prototype) | 13 July 1994 09:54:40 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 15, 1994 prototype) | 15 July 1994 11:35:34 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 2, 1994 prototype) | 2 July 1994 10:07:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 3, 1994 prototype) | 5 July 1994 04:48:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 1, 1994 prototype) | 1 June 1994 06:08:16 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 10, 1994 prototype) | 10 June 1994 14:06:26 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 23, 1994 prototype) | 23 June 1994 11:25:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 28, 1994 prototype) | 28 June 1994 10:13:32 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 30, 1994 prototype) | 30 June 1994 08:10:50 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 6, 1994 prototype) | 6 June 1994 08:46:04 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 11, 1994 prototype) | 11 May 1994 19:33:02 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 19, 1994 prototype) | 19 May 1994 13:19:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 26, 1994 prototype) | 26 May 1994 16:03:22 | Sega Mega Drive | Action Platformer | - |
| Cubicolor (prototype) | Atari 2600 | ✓ | ||
| Cubix Robots for Everyone: Clash 'n Bash (May 14, 2002 prototype) | 14 May 2002 10:28:34 | Game Boy Advance | Beat 'em up | - |
| Culdcept Saga (Jul 2, 2007 prototype) | 2 July 2007 | Xbox 360 | Board Game, Card Based | - |
| Curious George (Dec 2, 2005 prototype) | 2 December 2005 15:37:29 | Xbox | Platformer | - |
| Curse (Jun 26, 1990 prototype) | 26 June 1990 | Sega Mega Drive | Shooter | - |
| Cutthroat Island (Sep 16, 1995 prototype) | 16 September 1995 | Game Gear | Action | - |
| Cutthroat Island (prototype) | SNES | Platformer | - | |
| Cy Girls (Oct 29, 2003 prototype) | 29 October 2003 13:27:15 | PlayStation 2 | Action Adventure | - |
| Cyber Police ESWAT (Prototype A) | Sega Master System | Action | - | |
| Cyber Police ESWAT (Prototype B) | Sega Master System | Action | - | |
| Cyber Police ESWAT (Prototype C) | Sega Master System | Action | - | |
| Cyber Speedway (Jun 26, 1995 prototype) | 26 June 1995 14:30:50 | Sega Saturn | Racing | - |
| Cyber Troopers Virtual-On Force (Sep 13, 2010 prototype) | 13 September 2010 | Xbox 360 | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Dec 9, 1999 prototype) | 9 December 1999 13:30:35 | Dreamcast | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Mar 31, 2009 prototype) | 31 March 2009 | Xbox 360 | Action | - |
| Cybermorph (Early prototype) | 23 August 1993 | Atari Jaguar | Shooter | - |
| Cybernator (Nov 1992 prototype) | November 1992 | SNES | Run and gun | - |
| Cyborg 009 (Prototype) | SNES | Run and gun | - | |
| Cyborg Hunter (Prototype) | Sega Master System | Arcade | - | |
| D (Jan 15, 1996 prototype) | 15 January 1996 08:38:52 | PlayStation | Adventure | - |
| D&Co (Prototype) | Nintendo DS | - | ||
| DJ Hero (Jul 20, 2009 prototype) | 20 July 2009 22:55:14 | Xbox 360 | Rhythm | - |
| DJ Hero (Jul 28, 2009 prototype) | 28 July 2009 | Xbox 360 | Music | - |
| DJ Hero 2 (Jul 6, 2010 prototype) | 6 July 2010 | Xbox 360 | Music, Rhythm | - |
| DK King of Swing (iQue prototype) | Game Boy Advance | Platformer | - | |
| DOA2: Hardcore (Oct 1, 2000 prototype) | 1 October 2000 16:57:12 | PlayStation 2 | Fighting | - |
| DOOM II (Jan 6, 2010 prototype) | 6 January 2010 20:47:30 | Xbox 360 | First Person Shooter | - |
| DOOM II (May 5, 2010 prototype) | 5 May 2010 | Xbox 360 | First Person Shooter | - |
| DSP-1 Tech Demo | SNES | Tech Demo | ✓ | |
| Daffy Duck in Hollywood (ESB Prototype) | Sega Mega Drive | Platform | - | |
| Daffy Duck: The Marvin Missions (Prototype) | SNES | Platformer | - | |
| Dai Senryaku VII: Modern Military Tactics (Oct 11, 2004 prototype) | 11 October 2004 18:02:26 | Xbox | Turn-Based Strategy | - |
| Daikatana (Apr 19, 2000 prototype) | 19 April 2000 | Game Boy Color | Role Playing | - |
| Dakar 2 (Jan 27, 2003 prototype) | 27 January 2003 16:44:14 | PlayStation 2 | Racing | - |
| Dakar 2 (Nov 28, 2002 prototype) | 28 November 2002 14:54:28 | PlayStation 2 | Racing | - |
| Damnation (Apr 20, 2009 prototype) | 20 April 2009 | PlayStation 3 | Third-person shooter | - |
| Damnation (Jan 6, 2009 prototype) | 6 January 2009 | PlayStation 3 | Third-person shooter | - |
| Dance Central (Aug 10, 2010 Takehome Beta) | 10 August 2010 | Xbox 360 | Music, Rhythm | - |
| Dance Central (Jun 7, 2010 prototype) | 7 June 2010 21:25:01 | Xbox 360 | Music, Rhythm | - |
| Dance Central 2 (Jul 25, 2011 Takehome Beta) | 25 July 2011 | Xbox 360 | Music, Rhythm | - |
| Dance Central 3 (Aug 29, 2012 prototype) | 29 August 2012 18:34:44 | Xbox 360 | Rhythm | - |
| Dance Central 3 (Sep 16, 2012 prototype) | 16 September 2012 07:38:40 | Xbox 360 | Rhythm | - |
| Dance Dance Revolution (Dec 8, 2000 prototype) | 8 December 2000 15:02:34 | PlayStation | Rhythm | - |
| Dance Dance Revolution (Sep 3, 2010 prototype) | 3 September 2010 | Nintendo Wii | Rhythm | - |
| Dance Dance Revolution Extreme (Jul 12, 2004 prototype) | 12 July 2004 18:12:10 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme (May 10, 2004 prototype) | 10 May 2004 17:07:36 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme 2 (May 10, 2005 prototype) | 10 May 2005 22:32:06 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Ultramix (Aug 12, 2003 prototype) | 12 August 2003 23:33:04 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 2 (Sep 7, 2004 prototype) | 7 September 2004 21:41:32 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (May 14, 2005 prototype) | 14 May 2005 05:32:38 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (Sep 3, 2005 prototype) | 3 September 2005 01:18:23 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Universe 3 (Aug 21, 2008 prototype) | 21 August 2008 | Xbox 360 | Music | - |
| Dance Dance Revolution X (Jul 10, 2008 prototype) | 10 July 2008 11:33:38 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution: Disney Mix (Jun 8, 2001 prototype) | 8 June 2001 13:47:32 | PlayStation | Rhythm | - |
| Dance Factory (Feb 22, 2006 prototype) | 22 February 2006 12:32:52 | PlayStation 2 | Rhythm | - |
| Dance Factory (Feb 5, 2006 prototype) | 5 February 2006 | PlayStation 2 | Music | - |
| Dance Factory (Jan 21, 2006 prototype) | 21 January 2006 17:37:56 | PlayStation 2 | Rhythm | - |
| Dance Paradise (Nov 16, 2010 prototype) | 16 November 2010 15:42:14 | Xbox 360 | Rhythm | - |
| Dancing Stage EuroMIX (Sep 1, 2000 prototype) | 1 September 2000 11:13:46 | PlayStation | Dancing | - |
| Dancing Stage Fusion (Jul 8, 2004 prototype) | 8 July 2004 19:29:26 | PlayStation 2 | Rhythm - Dancing | - |
| Dancing Stage Unleashed (Jul 1, 2003 prototype) | 1 July 2003 21:09:29 | Xbox | Rhythm - Dancing | - |
| Dancing Stage: Disney Mix (Jan 7, 2001 prototype) | 7 January 2001 13:30:00 | PlayStation | Rhythm | - |
| Danny Sullivan's Indy Heat (Prototype) | Sega Mega Drive | Racing | ✓ | |
| Dante's Inferno (PC demo) | 28 November 1995 | Atari Jaguar CD | Adventure | ✓ |
| Daredevil: The Man Without Fear (Mar 22, 2004 prototype) | 22 March 2004 09:08:57 | PlayStation 2 | Action Adventure | ✓ |
| Darius Burst: Chronicle Saviours (Nov 9, 2015 prototype) | 9 November 2015 | PlayStation Vita | Shoot 'Em Up | - |
| Dark Arms: Beast Busters (Prototype) | Neo Geo Pocket Color | Role Playing | - | |
| Dark Chambers (Nov 22, 1985 prototype) | Atari 2600 | - | ||
| Dark Cloud (July 12, 2001 prototype) | 12 July 2001 10:19:58 | PlayStation 2 | - | |
| Dark Cloud 2 (Dec 26, 2002 08.12 prototype) | 26 December 2002 08:12:56 | PlayStation 2 | RPG | - |
| Dark Eden (Prototype) | Game Boy Advance | Action | ✓ | |
| Dark Empire (Prototype) | Game Boy Advance | Role playing | ✓ | |
| Dark Fathoms (May 07, 2009 Tech Demo) | 7 May 2009 20:35:33 | Xbox 360 | ✓ | |
| Dark Guardian - Episode 1: Unknown Enemy (prototype) | 2001 | Atari Jaguar | ✓ | |
| Dark Kingdom (v0.55 prototype) | SNES | Role playing | - | |
| Dark Messiah of Might and Magic: Elements (Dec 21, 2007 prototype) | 21 December 2007 02:20:46 | Xbox 360 | Action | - |
| Dark Messiah of Might and Magic: Elements (Oct 18, 2007 prototype) | 18 October 2007 00:00:00 | Xbox 360 | First Person Shooter | - |
| Dark Reign 2 (Apr 13, 2000 Prototype) | 13 April 2000 | PC | - | |
| Dark Reign 2 (Apr 25, 2000 QA Prototype) | 25 April 2000 | PC | - | |
| Dark Reign 2 (Apr 4, 2000 QA Alpha prototype) | 4 April 2000 | PC | - | |
| Dark Reign 2 (May 14, 2000 QA "WON Beta" prototype) | 25 April 2000 | PC | - | |
| Dark Reign: Rise of the Shadowhand (Feb 18, 1998 prototype) | 18 February 1998 | PC | - | |
| Dark Rift (May 14, 1996 prototype) | 14 May 1996 21:26:18 | PlayStation | Fighting | ✓ |
| Dark Savior (Nov 2, 1996 prototype) | 2 November 1996 19:45:48 | Sega Saturn | Action | - |
| Dark Souls (Aug 21, 2011 prototype) | 21 August 2011 | Xbox 360 | Action Role-playing | - |
| Dark Souls II (Network Test EU) | PlayStation 3 | Action role-playing | - | |
| Dark Souls II (Network Test JP) | PlayStation 3 | Action role-playing | - | |
| Dark Souls II (Network Test US) | PlayStation 3 | Action role-playing | - | |
| Dark Summit (Jul 6, 2001 E3 prototype) | 6 July 2001 04:24:46 | Xbox | Sports - Snowboarding | - |
| Dark Void (Nov 4, 2009 prototype) | 27 October 2009 | Xbox 360 | Third-person shooter, action-adventure | - |
| Darksiders (May 29, 2009 prototype) | 29 May 2009 | Xbox 360 | Action-adventure | - |
| Darksiders II (Sep 20, 2011 prototype) | 20 September 2011 19:13:19 | Xbox 360 | Action Adventure | - |
| Darkstalkers 3 (May 25, 1998 prototype) | 25 May 1998 06:31:12 | PlayStation | Fighting | - |
| Darkstalkers Ressurection (Jan 21, 2013 prototype) | 21 January 2013 | Xbox 360 | Fighting | - |
| Darkwatch (Jun 1, 2005 prototype) | 1 June 2005 21:34:52 | Xbox | First-Person Shooter | - |
| Darkwing Duck (Game Boy prototype) | Game Boy | Platformer | - | |
| Darkwing Duck (NES prototype) | NES | Platformer | - | |
| Darwin 4081 (Feb 21, 1990 prototype) | 21 February 1990 16:52:40 | Sega Mega Drive | Shooter | - |
| Darwinia+ (Dec 10, 2009 prototype) | 10 December 2009 | Xbox 360 | Real-Time Strategy | - |
| Darwinia+ (May 13, 2009 prototype) | 13 May 2009 | Xbox 360 | Real Time Strategy | - |
| Dash of Destruction (Oct 27, 2008 prototype) | 27 October 2008 | Xbox 360 | Arcade | - |
| Dashin' Desperadoes (PAL prototype) | Sega Mega Drive | Platform | - | |
| Dave Mirra BMX Challenge (Oct 17, 2006 prototype) | 17 October 2006 16:13:35 | Xbox 360 | Sports - Biking | ✓ |
| Dave Mirra Freestyle BMX (Aug 17, 2000 prototype) | 17 August 2000 19:27:18 | PlayStation | Sports - BMX | - |
| Dave Mirra Freestyle BMX (Jul 25, 2000 prototype) | 25 July 2000 18:37:36 | PlayStation | - | |
| Dave Mirra Freestyle BMX (Nov 2, 2000 prototype) | 2 November 2000 11:55:22 | Dreamcast | Sports - Biking | - |
| Dave Mirra Freestyle BMX (Oct 16, 2000 prototype) | 16 October 2000 02:02:14 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX (Sep 20, 2000 prototype) | 20 September 2000 22:51:42 | Dreamcast | Sports - Bike | - |
| Dave Mirra Freestyle BMX (Sep 28, 2000 prototype) | 28 September 2000 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX (Sep 7, 2000 prototype) | 7 September 2000 | Dreamcast | Sports | - |
| Dave Mirra Freestyle BMX 2 (Aug 13, 2001 prototype) | 13 August 2001 20:16:08 | PlayStation 2 | Sports - Biking | - |
| Dave Mirra Freestyle BMX 2 (Jul 8, 2001 prototype) | 8 July 2001 15:42:54 | PlayStation 2 | Sports - Biking | - |
| Dave Mirra Freestyle BMX 2 (Oct 14, 2001 prototype) | 14 October 2001 02:40:27 | Xbox | Sports | - |
| Dave Mirra Freestyle BMX 2 (Sep 19, 2001 prototype) | 19 September 2001 20:30:43 | Xbox | Sports | - |
| Dave Mirra Freestyle BMX 4 (Nov 8, 2002 prototype) | 8 November 2002 12:02:26 | Xbox | Sports - Biking | ✓ |
| Dave Mirra Freestyle BMX: Maximum Remix (Apr 2, 2001 prototype) | 2 April 2001 20:23:59 | PlayStation | Sports | - |
| David Beckham Soccer (Apr 17, 2002 prototype) | 17 April 2002 11:52:25 | Xbox | Sports | - |
| David Robinson's Supreme Court (Apr 15, 1992 prototype) | 15 April 1992 11:41:38 | Sega Mega Drive | Sports | - |
| David Robinson's Supreme Court (Prototype) | Game Gear | Sports - Basketball | ✓ | |
| Davis Cup World Tour Tennis 2 (Jul 28, 1994 prototype) | 28 July 1994 | Sega Mega Drive | Tennis | ✓ |
| Daxter (Feb 10, 2006 prototype) | 10 February 2006 16:02:56 | PlayStation Portable | Action | - |
| Daxter (Feb 2, 2006 prototype) | 2 February 2006 | PlayStation Portable | Action | - |
| Daytona USA (Dec 19, 2012 prototype) | 19 December 2012 | Xbox 360 | Driving/Racing | - |
| Daytona USA (Dec 20, 2012 prototype) | 20 December 2012 | Xbox 360 | Driving/Racing | - |
| Daytona USA (Feb 29, 2012 prototype) | 29 February 2012 | Xbox 360 | Racing | - |
| Daytona USA (Jul 28, 2012 prototype) | 28 July 2012 | Xbox 360 | Racing | - |
| Daytona USA (Oct 12, 2012 prototype) | 12 October 2012 | Xbox 360 | Driving/Racing | - |
| Daytona USA 2001 (Feb 27, 2001 prototype) | 27 February 2001 19:08:50 | Dreamcast | Racing | - |
| Ddspgame (US Blue Disk) | Nintendo 64DD | Demo | - | |
| De Blob (October 30, 2008 Nintendo DS Prototype) | 30 October 2008 | Nintendo DS | ✓ | |
| De Blob 2 (Oct 17, 2010 prototype) | 17 October 2010 | Xbox 360 | Puzzle, Platform | - |
| Dead Angle (Prototype) | Sega Master System | Action | - | |
| Dead Block (May 8, 2011 prototype) | 8 May 2011 | Xbox 360 | Strategy | - |
| Dead Island (Jul 19, 2011 prototype) | 19 July 2011 10:41:07 | Xbox 360 | First Person Shooter | - |
| Dead Island 2 (June 18, 2015 prototype) | June 2015 | PC | Horror | - |
| Dead Island: Epidemic (May 7, 2014 prototype) | 7 May 2014 | PC | MOBA | - |
| Dead Island: Riptide (Feb 28, 2013 prototype) | 28 February 2013 12:11:50 | PlayStation 3 | Action | - |
| Dead Justice (Sep 21, 2001 prototype) | 21 September 2003 | PC | ✓ | |
| Dead Man's Hand (Oct 15, 2003 prototype) | 15 October 2003 14:51:35 | Xbox | First-Person Shooter | - |
| Dead Man's Hand (Sep 17, 2003 prototype) | 17 September 2003 04:35:06 | Xbox | First-Person Shooter | - |
| Dead North (Nov 12, 2012 prototype) | 12 November 2012 05:11:07 | Xbox 360 | Action | ✓ |
| Dead North (Nov 15, 2012 prototype) | 15 November 2012 | Xbox 360 | Action | ✓ |
| Dead North (Nov 20, 2012 prototype) | 20 November 2012 13:52:19 | Xbox 360 | Action | ✓ |
| Dead North (Nov 22, 2012 21.45 prototype) | 22 November 2012 21:45:05 | Xbox 360 | Action | ✓ |
| Dead North (Nov 22, 2012 prototype) | 22 November 2012 17:09:03 | Xbox 360 | Action | ✓ |
| Dead North (Nov 23, 2012 01.36 prototype) | 23 November 2012 01:36:41 | Xbox 360 | Action | ✓ |
| Dead North (Nov 23, 2012 05.45 prototype) | 23 November 2012 05:45:05 | Xbox 360 | Action | ✓ |
| Dead North (Nov 23, 2012 09.36 prototype) | 23 November 2012 09:36:41 | Xbox 360 | Action | ✓ |
| Dead North (Nov 23, 2012 09.40 prototype) | 23 November 2012 09:40:51 | Xbox 360 | Action | ✓ |
| Dead North (Oct 23, 2012 prototype) | 23 October 2012 | Xbox 360 | Action | ✓ |
| Dead North (Oct 29, 2012 prototype) | 29 October 2012 05:12:09 | Xbox 360 | Action | ✓ |
| Dead Rising (May 6, 2006 prototype) | 6 May 2006 | Xbox 360 | Action-adventure survival horror open world | - |
| Dead Rising 2 (Aug 24, 2010 prototype) | 24 August 2010 10:36:00 | PlayStation 3 | Role-Playing, Action-Adventure | - |
| Dead Rising 2 (Aug 9, 2010 prototype) | 9 August 2010 18:14:02 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (Jun 1, 2010 prototype) | 1 June 2010 00:20:43 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (Mar 16, 2010 prototype) | 16 March 2010 18:18:30 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (May 13, 2010 prototype) | 13 May 2010 22:31:14 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (May 18, 2010 prototype) | 18 May 2010 01:19:54 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (May 20, 2010 prototype) | 20 May 2010 21:46:21 | Xbox 360 | Action Adventure | - |
| Dead Rising 2 (Sep 2, 2010 prototype) | 2 September 2010 17:12:35 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Case West (Jul 7, 2010 prototype) | 7 July 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case West (Oct 18, 2010 prototype) | 18 October 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Aug 7, 2010 prototype) | 7 August 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Jul 16, 2010 prototype) | 16 July 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (Jul 8, 2010 Prototype) | 8 July 2010 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Case Zero (Jun 7, 2010 prototype) | 7 June 2010 16:30:00 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Case Zero (Jun 8, 2010 prototype) | 8 June 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (May 13, 2010 prototype) | 13 May 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Case Zero (May 31, 2010 prototype) | 31 May 2010 | Xbox 360 | Survival | - |
| Dead Rising 2: Off the Record (Aug 15, 2011 prototype) | 15 August 2011 14:30:12 | PC | Action | - |