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| 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 | |