| Game | Updated |
| G-Force | 08/7/2011 |
| G.I. Joe: The Rise of Cobra — The Game | 03/13/2011 |
| Galaga Legions | 01/19/2011 |
| Gears of War | 11/29/2011 |
| Gears of War 2 | 01/8/2011 |
| Gears of War 3 | 01/23/2011 |
| Geometry Wars: Retro Evolved | 04/1/2011 |
| Ghostbusters: The Video Game | 06/11/2011 |
| Golden Axe: Beast Rider | 02/2/2011 |
| Grabbed by the Ghoulies | 02/9/2011 |
| Grand Theft Auto IV | 11/01/2012 |
| Grand Theft Auto IV: The Ballad of Gay Tony | 03/17/2011 |
| Grand Theft Auto IV: The Lost and Damned | 01/18/2011 |
| Grand Theft Auto: Episodes from Liberty City | 05/17/2011 |
| Grand Theft Auto: San Andreas | 04/25/2011 |
| Grid | 10/3/2011 |
| Guitar Hero 5 | 09/25/2011 |
| Guitar Hero II | 01/12/2011 |
| Guitar Hero III: Legends of Rock | 06/30/2011 |
| Guitar Hero Smash Hits | 01/21/2011 |
| Guitar Hero World Tour | 02/16/2011 |
| Guitar Hero: Aerosmith | 09/29/2011 |
| Guitar Hero: Metallica | 12/13/2011 |
| Guitar Hero: Van Halen | 05/11/2011 |
| Guitar Hero: Warriors of Rock | 01/10/2011 |
| Gun | 09/5/2011 |