| title | developer | year | platform | | pop. |
|---|
| Galactix | author | 1987 | MS-DOS | platformer adventure Science Fiction | image | | label | |
| Galaxy Mage Redux | author | ? | Linux | role-play Fantasy | | | label | |
| Galaxy of Pen & Paper | Behold Studios | 2017 | Linux | simulation role-play Fantasy | | | label | |
| Ganon's Claim | author | 2005 | Linux | action/reflex adventure Fantasy | image | subject | label | |
| Gauntlet | Arrowhead Game Studios | 2014 | Linux | action/reflex adventure role-play Fantasy | | | label | |
| Gauntlet IV | Tengen | 1993 | Mega Drive | maze adventure role-play Fantasy | image | subject | label | |
| Geas | - | 2001 | Internet Only | role-play Fantasy | image | | label | |
| Gee Whiz | icculus.org | 2003 | Linux | role-play Fantasy | image | | label | |
| Geepa's First Quest | author | 2003 | Linux | action/reflex adventure | image | subject | label | |
| Gentrieve 2 | Phr00t | 2012 | Linux | Science Fiction | | | label | |
| Getsufuu Maden | Konami | 1987 | NES | action/reflex platformer adventure Fantasy | image | | label | |
| Ghost of a Tale | SeithCG | 2018 | Windows | adventure Fantasy | image | | label | |
| Giddy 3: The Retro Eggsperience | author | 2014 | Linux | platformer adventure | | | label | |
| Global Agenda | Hi-Rez Studios | 2010 | Windows | action/reflex shooter Science Fiction | image | subject | label | |
| Gloria Victis | Black Eye Games | TBA | Linux | role-play | | | label | |
| GnomeHack | author | 2001 | Linux | role-play Fantasy | image | | label | |
| Gnomescroll | Symbolic Analytics | 2013 | Linux | role-play | | | label | |
| Gobliins 2: The Prince Buffoon | Coktel Vision | 1992 | MS-DOS | adventure puzzle Fantasy | image | | label | |
| Goblin Hack | author | 2008 | Linux | role-play | image | subject | label | |
| Goblin Hack | ? | 2008 | Windows | role-play | image | | label | |
| GoldenEye 007 | Rare | 1997 | N64 | shooter | image | subject | label | |
| GoldenEye: Source | author | 2014 | Linux | shooter | | subject | label | |
| Gorched | author | 2020 | Linux | strategy turn-based | | | label | |
| Gorky17 | Metropolis Software | 1999 | Windows | role-play turn-based Horror | image | | label | |
| Gothic | Piranha Bytes | 2001 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Gothic 2 | Piranha Bytes | 2002 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Gothic 2: The Night of the Raven | Piranha Bytes | 2003 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Gothic 3 | Piranha Bytes | 2006 | Windows | action/reflex adventure role-play Fantasy | image | subject | label | |
| GREED: Black Border | ClockStone Software;Headup Games | 2009 | Windows | shooter role-play Science Fiction | image | | label | |
| Grim Dawn | Crate Entertainment | 2016 | Windows | action/reflex role-play Fantasy | image | | label | |
| Grimoire: Heralds of the Winged Exemplar | Golden Era Games | 2017 | Windows | role-play Fantasy | image | | label | |
| Grotesque Tactics: Evil Heroes | Silent Dreams | 2010 | Windows | strategy role-play turn-based Fantasy | image | subject | label | |
| Ground Zero | Tynesoft | 1986 | Amstrad CPC | adventure | image | | label | |
| Ground Zero: Genesis of a New World | destraX Entertainment Software | 2005 | Windows | strategy Science Fiction | image | subject | label | |
| Guild Wars 2 | ArenaNet | 2012 | Windows | action/reflex role-play Fantasy | | | label | |
| Guise Of The Wolf | FUN Creators;Merge Games | 2014 | Windows | action/reflex adventure Fantasy | image | | label | |
| Gunlok | Rebellion | 2000 | Windows | action/reflex role-play Science Fiction | image | | label | |
| Gunmetal Arcadia | Minor Key Games | 2016 | Linux | platformer | image | | label | |
| Gunmetal Arcadia Zero | Minor Key Games | 2016 | Linux | platformer Fantasy | | subject | label | |
| Gunster: Rain of Bullets | NHN | 2006 | Windows | shooter | | | label | |
| Gurk | Larva Labs | ? | Android | role-play turn-based | | | label | |
| Gyromancer | Square Enix;PopCap Games | 2009 | X360 | puzzle role-play turn-based Fantasy | image | | label | |
| Gyromancer | Square Enix;PopCap Games | 2009 | Windows | puzzle role-play turn-based Fantasy | image | | label | |
