| Name | Developer | Publisher | Genre(s) | Operating system(s) | Date released |
|---|
| Game Dev Tycoon | Greenheart Games | Greenheart Games | Casual, indie, simulation, strategy | Windows, Linux, macOS | 10 December 2012 |
| Garry's Mod | Facepunch Studios | Valve | Nonlinear, sandbox physics | Windows, Linux, macOS | 29 August 2013 |
| Genshin Impact | miHoYo | miHoYo | Action role-playing | Windows | 28 September 2020 |
| Giant Cop: Justice Above All | Other Ocean Interactive | Other Ocean Interactive | Action | Windows | 30 May 2017 |
| Goat Simulator | Coffee Stain Studios | Coffee Stain Studios | Nonlinear, sandbox physics | Windows, Linux, macOS | 1 April 2014 |
| Gone Home | The Fullbright Company | The Fullbright Company | Adventure, interactive fiction, point and click | Windows, Linux, macOS | 15 August 2013 |
| Gothic | Piranha Bytes | Xicat Interactive | Action role-playing | Windows | 15 April 2001 |
| Gothic II | Piranha Bytes | JoWooD Entertainment | Action role-playing | Windows | 29 November 2002 |
| Gothic 3 | Piranha Bytes | JoWooD Entertainment, Deep Silver, Aspyr Media | Action role-playing | Windows | 13 October 2006 |
| Gothic 3: Forsaken Gods | Trine Games, Mad Vulture Games | JoWooD Entertainment | Action role-playing | Windows | 21 November 2008 |
| Arcania: Gothic 4 | Spellbound Entertainment | JoWooD Entertainment, DreamCatcher Interactive | Action role-playing | Windows | 14 October 2010 |
| Arcania: Fall of Setarrif | Spellbound Entertainment | Nordic Games | Action role-playing | Windows | 25 October 2011 |
| God of War | Santa Monica Studio | Sony Interactive Entertainment | Action-adventure, hack and slash | Windows | January 14, 2022 |
| Grand Theft Auto | DMA Design | BMG Interactive | Open world, action-adventure | Windows, MS-DOS | 21 October 1997 |
| Grand Theft Auto: London 1961 | Rockstar Canada | Rockstar Games | Open world, action-adventure | Windows | 1 June 1999 |
| Grand Theft Auto: London 1969 | Rockstar Canada | Rockstar Games | Open world, action-adventure | Windows, MS-DOS | 31 March 1999 |
| Grand Theft Auto 2 | DMA Design | Rockstar Games | Open world, action-adventure | Windows | 22 October 1999 |
| Grand Theft Auto III | DMA Design | Rockstar Games | Open world, action-adventure | Windows | 21 May 2002 |
| Grand Theft Auto IV | Rockstar North | Rockstar Games | Open world, action-adventure | Windows | 2 December 2008 |
| Grand Theft Auto IV: The Lost and Damned | Rockstar North | Rockstar Games | Open world, action-adventure | Windows | 13 April 2010 |
| Grand Theft Auto: The Ballad of Gay Tony | Rockstar North | Rockstar Games | Open world, action-adventure | Windows | 13 April 2010 |
| Grand Theft Auto: San Andreas | Rockstar North | Rockstar Games | Open world, action-adventure | Windows, macOS | 7 June 2005 |
| Grand Theft Auto: Vice City | Rockstar North | Rockstar Games | Open world, action-adventure | Windows, macOS | 12 May 2003 |
| Grand Theft Auto V | Rockstar North | Rockstar Games | Open world, action-adventure | Windows | 14 April 2015 |
| Grid 2 | Codemasters | Codemasters | Racing, arcade | Windows | 27 May 2013 |
| Ground Control | Massive Entertainment | Sierra On-Line | Real-time tactics | Windows | 1 June 2000 |
| Ground Control II: Operation Exodus | Massive Entertainment | Vivendi Universal | Real-time tactics | Windows | 18 June 2004 |
| Growtopia | Ubisoft Abu Dhabi (2017–present), Robinson Technologies (2013-2017), Hamumu Software (2013-2017) | Ubisoft (2017–present), Robinson Technologies (2013-2017) | MMO | Windows, macOS | 30 November 2012 |
| GTR Evolution | Sinbin Studios | Atari, Viva Media | Racing | Windows | 1 August 2008 |
| Guild Wars | ArenaNet | NCSoft | CORPG | Windows | 26 April 2005 |
| Guild Wars 2 | ArenaNet | NCSoft | MMORPG | Windows, macOS | 28 August 2012 |
| Guild Wars Factions | ArenaNet | NCSoft | CORPG | Windows | 28 April 2006 |
| Guild Wars Nightfall | ArenaNet | NCSoft | CORPG | Windows | 27 October 2006 |
| Guitar Hero III: Legends of Rock | Neversoft | Aspyr Media | Music, Rhythm | Windows, Mac OS X | 13 November 2007 |
| Gunpoint | Suspicious Developments | Suspicious Developments | Action, adventure, puzzle platformer | Windows, Linux, macOS | 3 June 2013 |