| Gears of War 2 (Dec 2, 2008 2 Test DLCs + DLC Combustible Multiplayer Map Pack prototype) | 2 December 2008 11:21:00 | Xbox 360 |
| Gears of War 2 (Feb 1, 2008 prototype) | 1 February 2008 | Xbox 360 |
| Gears of War 2 (Feb 12, 2008 prototype) | 12 February 2008 23:22:56 | Xbox 360 |
| Gears of War 2 (Feb 20, 2009 DLC Snowblind Map Pack prototype) | 20 February 2009 05:11:00 | Xbox 360 |
| Gears of War 2 (Jan 6, 2009 TU2 prototype) | 6 January 2009 17:17:00 | Xbox 360 |
| Gears of War 2 (Mar 4, 2009 TU3 prototype) | 4 March 2009 21:51:00 | Xbox 360 |
| Gears of War 2 (May 8, 2009 prototype) | 8 May 2009 | Xbox 360 |
| Gears of War 2 (Nov 21, 2008 TU1 prototype) | 21 November 2008 17:58:00 | Xbox 360 |
| Gears of War 2 (Sep 14, 2008 prototype) | 14 September 2008 15:12:04 | Xbox 360 |
| Gears of War 2 (Sep 23, 2008 DLC Flashback Multiplayer Pack prototype) | 23 September 2008 12:44:00 | Xbox 360 |
| Gears of War 2 (Sep 23, 2008 DLC Gold-Plated Hammerburst Assault Riffle prototype) | | Xbox 360 |
| Gears of War 2 (Sep 23, 2008 DLC Gold-Plated Lancer Assault Rifle prototype) | | Xbox 360 |
| Gears of War 3 (Apr 22, 2011 prototype) | 22 April 2011 21:43:01 | Xbox 360 |
| Gears of War 3 (Apr 8, 2010 prototype) | 8 April 2010 | Xbox 360 |
| Gears of War 3 (Apr 8, 2011 prototype) | 8 April 2011 18:53:05 | Xbox 360 |
| Gears of War 3 (Dec 21, 2010 Multiplayer Prototype) | 21 December 2010 03:38:01 | Xbox 360 |
| Gears of War 3 (Jan 10, 2011 prototype) | 10 January 2011 12:42:27 | Xbox 360 |
| Gears of War 3 (Jan 11, 2011 prototype) | 11 January 2011 20:00:19 | Xbox 360 |
| Gears of War 3 (Jan 12, 2011 prototype) | 12 January 2011 07:33:47 | Xbox 360 |
| Gears of War 3 (Jan 20, 2011 prototype) | 20 January 2011 12:40:56 | Xbox 360 |
| Gears of War 3 (Jan 24, 2011 PC prototype) | 24 January 2011 | PC |
| Gears of War 3 (Jan 24, 2011 PS3 prototype) | 24 January 2011 | PlayStation 3 |
| Gears of War 3 (Jan 24, 2011 Xbox 360 prototype) | 24 January 2011 | Xbox 360 |
| Gears of War 3 (Jan 8, 2011 prototype) | 8 January 2011 | Xbox 360 |
| Gears of War 3 (Jun 1, 2011 prototype) | 1 June 2011 22:16:39 | Xbox 360 |
| Gears of War 3 (Jun 14, 2010 prototype) | 14 June 2010 15:27:24 | Xbox 360 |
| Gears of War 3 (Jun 29, 2011 prototype) | 29 June 2011 | Xbox 360 |
| Gears of War 3 (Jun 3, 2010 E3 prototype) | 3 June 2010 | Xbox 360 |
| Gears of War 3 (Jun 3, 2010 prototype) | 3 June 2010 06:47:01 | Xbox 360 |
| Gears of War 3 (Jun 30, 2011 prototype) | 30 June 2011 02:00:46 | Xbox 360 |
| Gears of War 3 (Mar 2, 2011 prototype) | 2 March 2011 | Xbox 360 |
| Gears of War 3 (Mar 20, 2011 prototype) | 20 March 2011 09:25:23 | Xbox 360 |
| Gears of War 3 (May 11, 2011 prototype) | 11 May 2011 23:55:31 | Xbox 360 |
| Gears of War 3 (May 14, 2010 prototype) | 14 May 2010 | Xbox 360 |
| Gears of War 3 (May 19, 2011 prototype) | 19 May 2011 19:46:37 | Xbox 360 |
| Gears of War 3 (May 8, 2011 prototype) | 8 May 2011 15:17:03 | Xbox 360 |
| Gears of War 3 (Nov 22, 2011 Demo) | 22 November 2011 | Xbox 360 |
| Gears of War 3 (Nov 24, 2010 prototype) | 24 November 2010 07:20:44 | Xbox 360 |
| Gears of War 3 (Oct 12, 2011 prototype) | 12 October 2011 07:18:40 | Xbox 360 |
| Gears of War 3 (Oct 14, 2011 prototype) | 14 October 2011 16:31:54 | Xbox 360 |
| Gears of War 3 (Sep 14, 2011 prototype) | 14 September 2011 07:39:20 | Xbox 360 |
| Gears of War: Judgement (Apr 13, 2012 prototype) | 13 April 2012 17:56:28 | Xbox 360 |
| Gears of War: Judgement (Jan 8, 2013 prototype) | 8 January 2013 23:39:01 | Xbox 360 |
| Gee Whiz! Mystery Club (Jan 19, 1998 demo) | 19 January 1998 | PC |
| Geist Force (Apr 23, 1999 prototype) | 23 April 1999 | Dreamcast |
| Geist Force (Apr 6, 1999 prototype) | 6 April 1999 | Dreamcast |
| Gekido (Sep 4, 2000 prototype) | 4 September 2000 11:43:18 | Game Boy Color |
| Gel: Set & Match (Mar 30, 2009 prototype) | 30 March 2009 | Xbox 360 |
| Gemini Golf (Feb 15, 2008 prototype) | 15 February 2008 | Nintendo Wii |
| Gen 13 (Mar 20, 1997 prototype) | 20 March 1997 23:26:26 | PlayStation |