| Gargoyle Mechanics | Developer | |
| Gari Biasillo | Developer | |
| GarlicGuy | Developer | |
| GarlicNoodles | Developer | |
| Garner | Developer | |
| Garoa Studios | Developer | |
| GarretMakesGames | Developer | |
| Garrett's Game Dev Stuff | Developer | |
| GarrettAlpha910 | Developer | |
| Garrick | Developer | |
| Garrick Campsey | Developer | |
| Garry F. Taylor | Developer | |
| Garry Hughes | Developer | |
| Garth Robinson | Developer | |
| Garuda | Developer | |
| Garuto | Developer | |
| GarvSethi | Developer | |
| Gary Capewell | Developer | |
| Gary Knight | Developer | |
| Gary O'Reilly | Developer | |
| Gary Penn | Developer | |
| Gary Priest | Developer | |
| Gary Quiring | Developer | |
| Gary Shannon | Developer | |
| Gary Stark | Developer | |
| Gary The Bard | Developer | |
| Gary Tonge | Developer | |
| Gary Walmsley | Developer | |
| GaryButterfield | Developer | |
| GaryRatcliffe | Developer | |
| Garzec | Developer | |
| Gas Mask War Studio | Developer | |
| Gas Powered Games | Developer | |
| Gaslight Games | Developer | |
| Gasoline | Publisher | |
| Gastronaut Studios | Developer | |
| Gat de Soia | Developer | |
| Gateway Interactive | DeveloperPublisher | |
| Gatheesha | Developer | |
| Gathering | Publisher | |
| Gathering of Developers | Publisher | |
| Gathering of DevelopersEU | Publisher | |
| Gathering of DevelopersNA | Publisher | |
| Gato D | Developer | |
| Gato Mocho | Developer | |
| Gattai Games | Developer | |
| Gau Entertainment | Developer | |
| Gaugepunk Games | Developer | |
| Gaulent | Developer | |
| Gaumont Multimedia | Developer | |
| GauntletGames | Developer | |
| GauraGames | Developer | |
| Gaurav Jha | Developer | |
| Gaurav.944 | Developer | |
| GausRoth | Developer | |
| Gauss PDF | Developer | |
| Gav Sarafian | Developer | |
| Gavaking | DeveloperPublisher | |
| Gavin | Developer | |
| Gavin Camlin | Developer | |
| Gavin Camp | Developer | |
| Gavin Wade | Developer | |
| Gavinbot | Developer | |
| Gavino | Developer | |
| Gawain (DarkGriffin) | Developer | |
| Gay Dinosaurs | Developer | |
| Gayme On! A Queer Game Thesis | Developer | |
| Gaz Marshall | Developer | |
| Gazbriel | Developer | |
| Gaze Team | Developer | |
| Gazelle | DeveloperPublisher | |
| Gaziter | Developer | |
| Gazoid | Developer | |
| Gazza_N | Developer | |
| Gazzapper | Developer | |
| Gaël Bourhis | Developer | |
| Gdev Studios | Developer | |
| Ge-Sen18 | Developer | |
| Gear Flower Games | Developer | |
| Gear Worx Productions | Developer | |
| GearDrift | Developer | |
| GearHead | Developer | |
| GearPunk Games | Developer | |
| GearShock Games | Developer | |
| GearSteak | Developer | |
| GearSting | Developer | |
| Gearbox Publishing | Publisher | |
| Gearbox Software | DeveloperPublisher | |
| Gearbox Software Software | Developer | |
| Gearhead Entertainment | Developer | |
| Gears for Breakfast | DeveloperPublisher | |
| GebbOS Games | Developer | |
| Gebelli Software | DeveloperPublisher | |
| Gechy | Developer | |
| Geckoo1337 | Developer | |
| Gedig | Developer | |
| Geegaz | Developer | |
| Geek_Joystick | Developer | |
| GeekyTime | Developer | |
| Geekz Anonymous | Developer | |