| 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 | |
| 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 | |
| General Support | DeveloperPublisher | |
| GeneralBirch | Developer | |
| GeneralNel | Developer | |
| GeneralPenguin | Developer | |
| GeneralSturgeon | Developer | |
| Generalis | Developer | |
| Generation 5 | Publisher | |
| Generic Games | Developer | |
| Generic Pixels | Developer | |
| GenericToast | Developer | |
| Genericide | Developer | |
| Genesis Soft (Andres Manuel Garcia, Alfonso Gustavo Chico,Miguel Angel Borreguero Quesada) | Developer | |
| Genesis Soft (Angel Garcia Delgado, Miguel Angel Borreguero Quesada) | Developer | |
| Genesis Soft (Julio Casal, Juan Casal, Miguel Angel Borreguero Quesada) | Developer | |
| Genesis Soft (Luis Jorge Garcia, David Burgos Prieto, Alfonso Gustavo Chico) | Developer | |
| Genesis Soft (Luis Jorge Garcia, Miguel Angel Borreguero Quesada) | Developer | |
| Genesis Soft (Miguel Angel Borreguero Quesada) | Developer | |
| Genesis Soft (Sergio Rios) | Developer | |
| Genesis Software | DeveloperPublisher | |
| Genetic Anomalies | Developer | |
| GeneticStudio | Developer | |
| Gengarskhan | Developer | |
| Genius Products | Publisher | |
| Genius Sonority | DeveloperPublisher | |
| Genius-x | Developer | |
| Genki | DeveloperPublisher | |
| Genki Co., Ltd | Developer | |
| Genki JP | Publisher | |
| GenkiAS,JP | Publisher | |
| GenkiJP | Publisher | |
| Genoa | Developer | |
| Genoma Games | Developer | |
| Genoti | Developer | |
| GentalGiants | Developer | |
| Genterprise | DeveloperPublisher | |
| Gentil | Developer | |
| Gentle Games | Developer | |
| GentleCatStudio | Developer | |
| Gentleman Squid Studio | Developer | |
| Gentlemanni | Developer | |
| Gentlymad | Developer | |
| GentooGames | Developer | |
| Genuine Games | Developer | |
| Genus Microprogramming | DeveloperPublisher | |
| GenyaDev | Developer | |
| Geo Factory | Developer | |
| Geo80 | Developer | |
| GeoDunn | Developer | |
| GeoNeoGames | Developer | |
| Geoff Alday | Developer | |