| Drunk Puppy | Developer | |
| DrunkRaccoon | Developer | |
| Drunkain | Developer | |
| Drunlucky | Developer | |
| Druom | Developer | |
| Drury33 | Developer | |
| Drweam | Developer | |
| Dry Cactus | DeveloperPublisher | |
| Dry Cough | Developer | |
| DryBoneX | Developer | |
| Dryn27 | Developer | |
| Dsquared Games | Developer | |
| Dtp entertainment | DeveloperPublisher | |
| Du_Couscous | Developer | |
| Duaik | DeveloperPublisher | |
| Dual | DeveloperPublisher | |
| Dual Effect | Developer | |
| Dual Lasagna | Developer | |
| Dual Wield Software | Developer | |
| Duang! Games, LLC | Developer | |
| DubaDubDee | Developer | |
| Dubomb | Developer | |
| Ducat | Developer | |
| Duck Bear | Developer | |
| Duck Block Games | Developer | |
| DuckDuckGamesInc | Developer | |
| Duck_sanes | Developer | |
| Duckbear Lab | Developer | |
| Duckbridge | Developer | |
| Duckenclaw | Developer | |
| Duckonaut | Developer | |
| DucksOfWar | Developer | |
| Ducksy | Developer | |
| Ducky | Developer | |
| DuckyGames | Developer | |
| Duct Tape Creations | Developer | |
| Dudematepal | Developer | |
| DudlDev | Developer | |
| Dudu | Developer | |
| DuendeonFuego | Developer | |
| Dufgames | DeveloperPublisher | |
| Duia | Developer | |
| Duintronic | Publisher | |
| Duke | Developer | |
| Duke University Medical Center | DeveloperPublisher | |
| Dukebot | Developer | |
| Dukerino | Developer | |
| Dul2Work | Developer | |
| DuleGames | Developer | |
| Dullahan Software | Developer | |
| Dumb Bear Studios | Developer | |
| Dumdodoor | Developer | |
| Dumivid | Developer | |
| Dummy Dojo | Developer | |
| Duna Games | Developer | |
| Dunbar Games | Developer | |
| Duncan Alexander | Developer | |
| Duncan Brown software | Publisher | |
| Duncan Idaho | Developer | |
| Duncan MacDonald | Developer | |
| Duncan Sinclair | Developer | |
| Dune Studio | Developer | |
| DuneWorld | Developer | |
| Dungeon Dwellers Design | Developer | |
| Dungeon Engineer | Developer | |
| Dungeon Entertainment | Publisher | |
| Dungeon of Zaar | Developer | |
| DungeonCrafter | Developer | |
| DungeonMaster_Marty | Developer | |
| DungeoneerDigital | Developer | |
| Dungeonmir | Developer | |
| Dungeons And Rockets | Developer | |
| DungeonsandDadJokes | Developer | |
| Dunkaccino | Developer | |
| DunkelBlume | Developer | |
| Dunster | Developer | |
| Duobix | Developer | |
| Duoplus Software | Developer | |
| Duoxy | Developer | |
| Dupat | Developer | |
| Dupuis | Developer | |
| Dupy | Developer | |
| Duque | Developer | |
| Duranik | DeveloperPublisher | |
| Durbek Nuritdinov | Developer | |
| Durbo | Developer | |
| Durell | Publisher | |
| Durell Software | DeveloperPublisher | |
| Durell Software (Mike A. Richardson) | Developer | |
| Durnathi | Developer | |
| Durz32 | Developer | |
| Dusenberry Martin Racing | Developer | |
| Dushi | Developer | |
| Dusk | Developer | |
| DuskedSky | Developer | |
| Dusko Dimitrijevic | Developer | |
| Dust Scratch Games | Developer | |
| Dustin Auxier | Developer | |
| Dustin Gunn | Developer | |
| Dustin Halsey | Developer | |
| Dustin Howard | Developer | |
| Dustin Woods | Developer | |
| Dustin.Brown | Developer | |
| DustinBragg | Developer | |
| Dustout Games | Developer | |
| Dusty Tome | Developer | |
| DustyCat Media | Developer | |
| DustyCoffee | Developer | |
| DustyDusk | Developer | |
| Dusty_Wolfi | Developer | |
| DustyofPodunk | Developer | |
| Dustyroom | Developer | |
| DutchPowerCreations | Developer | |
| Duvan Lizarazo | Developer | |
| Dux TM | Developer | |
| Duxxedo | Developer | |
| Duz Games | Developer | |
| Dvyk Kiep | Developer | |
| Dwaalinkt | Developer | |
| Dwango | DeveloperPublisher | |
| DwarfMiner | Developer | |
| Dwarf_Mason | Developer | |
| Dwarven Potato | Developer | |
| DwarvenJester | Developer | |
| Dwayke | Developer | |
| Dwayne Dev | Developer | |
| Dwight Davis | Developer | |
| Dwimepon | Developer | |
| DxCo Games | Developer | |
| Dyad Games | Developer | |
| Dydy | Developer | |
| Dykmoby | Developer | |
| DylTheRetroGAMES | Developer | |
| Dylan Brown | Developer | |
| Dylan Cassidy | Developer | |
| Dylan Chan | Developer | |
| Dylan Ebert | Developer | |
| Dylan Fitterer | Developer | |
| Dylan Gallardo | Developer | |
| Dylan Growcoot | Developer | |
| Dylan Harness | Developer | |
| Dylan Raley | Developer | |
| Dylan Smit | Developer | |
| Dylan Stout | Developer | |
| Dylan Wolf | Developer | |
| Dylan777 | Developer | |
| DylanMattern | Developer | |
| Dylza | Developer | |
| Dyna | Developer | |
| Dyna Corporation | DeveloperPublisher | |
| Dynabyte | DeveloperPublisher | |
| Dynafield | Developer | |
| Dynafield Systems | Developer | |
| Dynamic Media Triad | Developer | |
| Dynamic Pixels | Developer | |
| Dynamic Planning | Developer | |
| Dynamic Production | DeveloperPublisher | |
| Dynamic Soul Works | Developer | |
| Dynamic Voltage Games | DeveloperPublisher | |
| Dynamic zero | Developer | |
| DynamicDonut | Developer | |
| Dynamighty | Developer | |
| Dynamite | Developer | |
| Dynamite Designs | Publisher | |
| DynamiteWhale | Developer | |
| Dynamix | DeveloperPublisher | |
| Dynamo | Developer | |
| Dynasoft | Publisher | |
| Dynax | Publisher | |
| DyneWulf | Developer | |
| Dynetron Company | Publisher | |
| DynoStorm | Developer | |
| Dyoxyne | Developer | |
| Dystopia Interactive | DeveloperPublisher | |
| Dyzzyd | Developer | |
| Dzhon | Developer | |
| Dziek | Developer | |
| Dziff | Developer | |
| Dámhín (Daw-Veen) | Developer | |
| Dóczi Dominik | Developer | |
| E Bros Entertainment | Developer | |
| E Games | Developer | |
| E&J Software | Publisher | |
| E's | Developer | |
| E-Frontier | Publisher | |
| E-Game Inc. | Developer | |
| E-Games | Publisher | |
| E-Home Entertainment | DeveloperPublisher | |
| E-Home Entertainment Development | Publisher | |
| E-Line Media | DeveloperPublisher | |
| E-Magination | Developer | |
| E-Regular Games | DeveloperPublisher | |
| E-SOF Games | Developer | |
| E-Samu | Developer | |
| E-Scape EnterMedia | Publisher | |
| E-Studio | Developer | |
| E-Z Computing | Publisher | |
| E-a-R | Developer | |
| E. server | Developer | |
| E.E-Wick | Developer | |