Companies
- Grado
- Graffiti Games
- Grapefrukt
- Grasshopper Interactive
- Grasshopper Manufacture
- Green Man Gaming
- Grey Box
- Gridmedia Technologies
- GRIN
- Grinding Gear Games
- Griptonite Games
- Groove Games
- Ground Shatter
- GSC
- GSC Game World
- Guerrilla Games
- Gugames
- gumi
- Gun Media
- Gunfire Games
- GungHo Online Entertainment Inc.
- Gunzilla Games
- Hadoque
- Haemimont Games
- Hakababunko