| Guangzhou Good Games | Developer | |
| Guangzhou Good Network Technology | Developer | |
| Guaranteed Trainwreck | Developer | |
| Guard Crush Games | Developer | |
| Guardian Games | Developer | |
| Guará Estúdios | Developer | |
| Guaxinim Games | Developer | |
| Guazu | Developer | |
| GucioDevs | Developer | |
| Gud Games | Developer | |
| Guddeisr | Developer | |
| GudiAnn | Developer | |
| Gudouan | Developer | |
| GuerillaPoly | Developer | |
| GuerraGames | Developer | |
| Guerrilla Games | Developer | |
| Gugames.eu | Developer | |
| Gugino | Developer | |
| Gui Santos | Developer | |
| Gui TomoTuber Jogos | Developer | |
| Gui1_34 | Developer | |
| GuiMiTomo | Developer | |
| Guidance Interactive | DeveloperPublisher | |
| Guigil Corp. | Developer | |
| Guigx | Developer | |
| Guild Software | Developer | |
| Guildford Studio | Developer | |
| Guildhall Leisure Services | Publisher | |
| GuildsOfGods | Developer | |
| Guildsoft Games | Developer | |
| GuilelessMonk | Developer | |
| Guilherme Monocores | Developer | |
| Guilherme Raimondi | Developer | |
| Guilherme Schoueri | Developer | |
| Guilherme Sehna | Developer | |
| Guilherme Simionato | Developer | |
| Guilherme U. | Developer | |
| GuilhermeBorges | Developer | |
| GuilhermeX47 | Developer | |
| Guilherme_Gvil | Developer | |
| Guillaume | Developer | |
| Guillaume ANDRE | Developer | |
| Guillaume Bailey | Developer | |
| Guillaume Chiclet | Developer | |
| Guillaume Cottenceau | DeveloperPublisher | |
| Guillaume Faguet | Developer | |
| Guillaume Lefebvre | Developer | |
| Guillaume de la Tour | Developer | |
| Guille | Developer | |
| Guille U. M. | Developer | |
| Guillem Espias | Developer | |
| Guillem Llovera Castillo | Developer | |
| Guillem Serra | Developer | |
| GuilloTeam | Developer | |
| Guin Entertainment | Developer | |
| Guineu | Developer | |
| GuitarBro | Developer | |
| Guix | Developer | |
| Guld | Developer | |
| GuldorGames | Developer | |
| Gulti | Developer | |
| Gumboi | Developer | |
| Gumboot | Developer | |
| Gumby Bitworks (Ray Giarratana) | Developer | |
| Gumichan01 | Developer | |
| Gumions | Developer | |
| Gumitsu | Developer | |
| Gummy Cat | Developer | |
| GummyJon | Developer | |
| GumshoeJump | Developer | |
| Gun Asylem | Developer | |
| Gun Media | DeveloperPublisher | |
| GunDrill | Developer | |
| GunTurtle | Developer | |
| Gun_Goose | Developer | |
| Gundeck | DeveloperPublisher | |
| Gundogan | Developer | |
| Gunfighters | Developer | |
| Gunfire Games | Developer | |
| Gung-Ho! | Developer | |
| GungHo | DeveloperPublisher | |
| GungHo Online Entertainment | DeveloperPublisher | |
| GungHo Works | DeveloperPublisher | |
| Gunnar Clovis | Developer | |
| Gunnar Games | Developer | |
| Guntler | Developer | |
| Gunzil | Developer | |
| Gurin | Developer | |
| Gurkis | Developer | |
| Gurpegui | Developer | |
| Gurpreet Singh Matharoo | Developer | |
| Guru Games | Developer | |
| GuruGuru | Developer | |
| Guruhebat | Developer | |
| Gus | Developer | |
| Gus Larsen | Developer | |
| GusFuss | Developer | |
| Gushi | Developer | |
| Gussy | Developer | |
| Gust | DeveloperPublisher | |