| 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 | - |
| Dead Rising 2: Off the Record (Jun 28, 2011 prototype) | 28 June 2011 04:00:36 | Xbox 360 | Action Adventure | - |
| Dead Rising 2: Off the Record (Jun 29, 2011 prototype) | 29 June 2011 16:16:53 | PlayStation 3 | Action | - |
| Dead Space (Aug 29, 2008 prototype) | 29 August 2008 | Xbox 360 | Survival horror | - |
| Dead Space (Aug 30, 2008 prototype) | 30 August 2008 | PlayStation 3 | Survival horror | - |
| Dead Space (Jul 31, 2008 prototype) | 31 July 2008 | Xbox 360 | Third-person shooter
survival horror | - |
| Dead Space 2 (Beta Multiplayer) | | PlayStation 3 | Survival horror | - |
| Dead Space 2 (Nov 18, 2010 prototype) | 18 November 2010 | Xbox 360 | Survival horror | - |
| Dead Space 2 (Nov 19, 2010 Prototype) | 19 November 2010 00:44:16 | Xbox 360 | Survival Horror | - |
| Dead Space 2 (Nov 8, 2010 prototype) | 8 November 2010 | Xbox 360 | Survival horror | - |
| Dead Space 2 (Oct 5, 2010 prototype) | 5 October 2010 | Xbox 360 | Survival horror | - |
| Dead Space 3 (Aug 25, 2012 prototype) | 25 August 2012 | PlayStation 3 | Survival horror | - |
| Dead Space 3 (Dec 15, 2012 prototype) | 15 December 2012 00:00:00 | Xbox 360 | First Person Shooter | - |
| Dead Space: Extraction (Apr 22, 2009 prototype) | 22 April 2009 | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (Debug prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (v1111 prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Space: Extraction (v430 prototype) | | Nintendo Wii | Rail shooter | - |
| Dead Zone (Prototype) | | FDS | First Person Adventure | - |
| Dead or Alive (Apr 22, 1998 prototype) | 22 April 1998 12:52:32 | PlayStation | Fighting | - |
| Dead or Alive (Feb 20, 1998 prototype) | 20 February 1998 | PlayStation | Fighting | - |
| Dead or Alive (Jan 10, 1998 prototype) | 10 January 1998 01:15:38 | PlayStation | Fighting | - |
| Dead or Alive 1 Ultimate (Oct 12, 2004 prototype) | 12 October 2004 | Xbox | Fighting | - |
| Dead or Alive 2 (Feb 16, 2000 prototype) | 16 February 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Feb 17, 2000 prototype) | 17 February 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Jan 27, 2000 prototype) | 27 January 2000 07:48:34 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Jun 11, 2000 prototype) | 11 June 2000 22:36:47 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Mar 10, 2000 prototype) | 10 March 2000 | Dreamcast | Fighting | - |
| Dead or Alive 2 (Sep 8, 2000 prototype) | 8 September 2000 | PlayStation 2 | Fighting | - |
| Dead or Alive 3 (Mar 4, 2002 prototype) | 4 March 2002 | Xbox | Fighting | - |
| Dead or Alive 3 (Oct 14, 2001 prototype) | 14 October 2001 17:04:04 | Xbox | Fighting | - |
| Dead or Alive 4 (Sep 30, 2005 prototype) | 30 September 2005 12:22:19 | Xbox 360 | Fighting | - |
| Dead or Alive 5 (Jun 2, 2012 prototype) | 2 June 2012 | Xbox 360 | Fighting | - |
| Dead to Rights (Apr 25, 2003 prototype) | 25 April 2003 11:39:40 | PlayStation 2 | Action | - |
| Dead to Rights II (Dec 24, 2004 prototype) | 24 December 2004 13:49:24 | Xbox | Third-Person Shooter | - |
| Dead to Rights: Retribution (Feb 1, 2010 prototype) | 1 February 2010 00:00:00 | Xbox 360 | First Person Shooter | - |
| Dead to Rights: Retribution (Jan 15, 2010 prototype) | 15 January 2010 | Xbox 360 | Action | - |
| Deadlands (Jul 14, 2004 prototype) | 14 July 2004 22:10:34 | PlayStation 2 | Action | ✓ |
| Deadliest Warrior: The Game (Apr 3, 2010 prototype) | 3 April 2010 16:43:00 | Xbox 360 | Fighting | - |
| Deadly Skies (May 6, 1996 prototype) | 6 May 1996 21:55:24 | PlayStation | Flight Combat Simulator | - |
| Death By Cube (Sep 12, 2009 prototype) | 12 September 2009 | Xbox 360 | Adventure | - |
| Death By Degrees (Dec 29, 2004 prototype) | 29 December 2004 | PlayStation 2 | Action-adventure, beat 'em up | - |
| Death Duel (May 6, 1992 prototype) | 6 May 1992 14:30:12 | Sega Mega Drive | Fighting | - |
| Death Jr (Jul 22, 2005 prototype) | 22 July 2005 14:18:04 | PlayStation Portable | Action | - |
| Death Tank (Dec 11, 2008 prototype) | 11 December 2008 | Xbox 360 | Turn Based | - |
| Death Tank (Oct 2, 2008 prototype) | 2 October 2008 | Xbox 360 | Strategy | - |
| Death Track (Prototype) | | Game Boy | Racing | ✓ |
| Death by Cube (Nov 28, 2009 prototype) | 28 November 2009 | Xbox 360 | Dual-Joystick Shooter | - |
| Deathrow (Jun 24, 2002 prototype) | 24 June 2002 23:27:33 | Xbox | Action, Sports | - |
| Deathtrap Dungeon (Jan 7, 1998 prototype) | 7 January 1998 17:00:46 | PlayStation | Action-adventure | - |