| 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 | |
| Gust Co. | DeveloperPublisher | |
| Gust Co. Ltd. | DeveloperPublisher | |
| Gust Corporation | Developer | |
| GustJP | Publisher | |
| Gustav | Developer | |
| Gustavo Fournier | Developer | |
| Gustavo Marciano | Developer | |
| Gusto Games | Developer | |
| GutPunch | Developer | |
| Guthen | Developer | |
| Guthix | Developer | |
| GutoGuerreiro | Developer | |
| Guts Department | DeveloperPublisher | |
| GutsAndEffort | Developer | |
| Gutter | Developer | |
| Gutter Arcade | Developer | |
| GuttyKreum | Developer | |
| Guy Stevens | Developer | |
| Guy Stevens. Ivon Horn | Developer | |
| Guy Unger | Developer | |
| GuyGershon | Developer | |
| GuyWithTeaCup | Developer | |
| Guygoo | Developer | |
| Guðni Natan Gunnarsson | Developer | |
| Gw1p | Developer | |
| Gwen | Developer | |
| Gwen Frey | DeveloperPublisher | |
| GwowGame! | Developer | |
| Gwoxenox | Developer | |
| Gwyndolyn Marchant | Developer | |
| GxGrainSon | Developer | |
| Gyaha | Developer | |
| Gyani Kumari | Developer | |
| Gymcrash | Developer | |
| GyoRisha | Developer | |
| Gyorgy Papp | Developer | |
| Gypopothomas | Developer | |
| Gypsy | Developer | |
| GyulGames | Developer | |
| Gywair | Developer | |
| Görkem Berka | Developer | |
| G̸l̸i̷t̴c̶h̸e̵d̵ ̷J̶s̵o̷n̴ | Developer | |
| H I M | Developer | |
| H. Hochkins | Developer | |
| H. Komatsu | Developer | |
| H.A.I. System | DeveloperPublisher | |
| H.A.L. Labs | Publisher | |
| H.A.R.T Games | Developer | |
| H.E.P. Group | Publisher | |
| H.H.Magoo | Developer | |
| H.P.N. | Developer | |
| H2 Interactive | DeveloperPublisher | |
| H2O Entertainment | Developer | |
| H2OPunks | Developer | |
| H4iry Bro | Developer | |
| H4plo | Developer | |
| H4rmey | Developer | |
| HACAH | Developer | |
| HAL America | Publisher | |
| HAL Corporation | Publisher | |
| HAL Laboratory | DeveloperPublisher | |
| HAL Laboratory JP | Publisher | |
| HAL Laboratory NA | Publisher | |
| HALPCat | Developer | |
| HANGAME | Publisher | |
| HARD | DeveloperPublisher | |
| HARD Software | DeveloperPublisher | |
| HARFANG®3D | Developer | |
| HAS-IT GAMES | Developer | |
| HAUO | Developer | |
| HB Studios | DeveloperPublisher | |
| HB Studios Multimedia | Developer | |
| HBaddict | Developer | |
| HCdev12 | Developer | |
| HD Publishing | Publisher | |
| HEAVENDELUXE | Developer | |
| HEGworks | Developer | |
| HER.E Game Studio | Developer | |
| HEYBUD | Developer | |
| HGM Studios | Developer | |
| HIDROXIDO STUDIOS | Developer | |
| HIZUVI | Developer | |
| HI_TV | Developer | |
| HK Spadez | Developer | |
| HK Studio | Developer | |
| HKstudios | Developer | |
| HLEBNY | Developer | |
| HLNunnelly | Developer | |
| HMH Hamburger Medien Haus | DeveloperPublisher | |
| HMH Interactive | Publisher | |
| HOF Studios | DeveloperPublisher | |
| HOGuru | Developer | |
| HOIman6321 | Developer | |
| HORSES' MUSIC-DOGS | Developer | |
| HOT | DeveloperPublisher | |
| HOT B | Developer | |
| HOU Mai | Developer | |
| HOWLITE Entertainment | Developer | |
| HR Games | Publisher | |
| HRGames | Developer | |