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