| Geezer Gus | Developer | |
| Geglo | Developer | |
| Geir Straume | Developer | |
| Geist Studio | Developer | |
| Geist_AI | Developer | |
| GekidoRising | Developer | |
| Gekko | Developer | |
| Gel KING | Developer | |
| Gelatinous Cube Games | Developer | |
| Gelato Games | Developer | |
| Gelato Labs | Developer | |
| GelatoDev | Developer | |
| Gelecegi Kodlayanlar | Developer | |
| Gelgavish | Developer | |
| Gelid Games, Inc. | Developer | |
| Gelo Studio | Developer | |
| GeloKaiser | Developer | |
| Gem Software | Publisher | |
| Gembit | Developer | |
| Gemdrops | DeveloperPublisher | |
| Gemi Games | Developer | |
| Geminimax | Developer | |
| Geminite Tech | Developer | |
| Gemioli | Developer | |
| Gemma Nash | Developer | |
| Gemma Thomson | Developer | |
| Gemsoft Corp. | Developer | |
| Gen Soft | DeveloperPublisher | |
| GenBrg | Developer | |
| GenDesign | Developer | |
| GenGames | Developer | |
| GenZdevs | Developer | |
| Genaro Almaraz | Developer | |
| Gendly Games | Developer | |
| Gendut Studio | Developer | |
| Gene Herrschaft | Developer | |
| Gene Smith | Developer | |
| GenePool Software | Developer | |
| GeneX | DeveloperPublisher | |
| Gener | Developer | |
| General (Paxon) | Publisher | |
| General Admission Software | Publisher | |
| General Arcade | Developer | |
| General Computer Corporation | Developer | |
| General Entertainment | DeveloperPublisher | |
| General Entertainment Co. Ltd. | DeveloperPublisher | |
| General Interactive | DeveloperPublisher | |
| General Interactive Co. | Developer | |
| General Nut | Developer | |
| General Quarters Software | DeveloperPublisher | |