Companies
- Geography Of Robots
- Geometric Interactive
- Ghost Story Games
- Giant Sparrow
- Giant Squid
- GIANTS Software
- GOG.com
- Graffiti Games
- Grasshopper Manufacture
- Grey Box
- Greylock Studio
- Grinding Gear Games
- Griptonite Games
- Ground Shatter
- GSC Game World
- Guerrilla Games
- gumi
- Gun Media
- Gunfire Games
- GungHo Online Entertainment Inc.
- Gust
- Hadoque
- Haemimont Games
- HAL Laboratory