| David Williamson | Developer | |
| David Winsen | Developer | |
| David Wright | Developer | |
| David Wu SoftDev | Developer | |
| David Zhang | Developer | |
| DavidA3D | Developer | |
| DavidBlack | Developer | |
| DavidLink | Developer | |
| DavidMilot | Developer | |
| DavidPixel | Developer | |
| DavidSantos | Developer | |
| DavidXN | Developer | |
| Daviddiazgonza | Developer | |
| Davide Bucci | Developer | |
| Davide DRAI | Developer | |
| Davide Iannì | Developer | |
| Davide Jensen | DeveloperPublisher | |
| Davide Puato | Developer | |
| Davide Valentini | Developer | |
| Davide_M | Developer | |
| Davidegzz | Developer | |
| Davidobot | Developer | |
| Davidson & Associates | DeveloperPublisher | |
| Davilex | DeveloperPublisher | |
| Davilex Games | DeveloperPublisher | |
| Davilex GamesEU | Publisher | |
| Davinci No Code | Developer | |
| Davingot | Developer | |
| Davipbr15 | Developer | |
| Davis G. See | Developer | |
| Davis Studio | Developer | |
| Davod Dethlefs | Developer | |
| Davoid | Developer | |
| Davor Magdic | Developer | |
| Davyn.Karan | Developer | |
| DawCrash | Developer | |
| Dawdling Dog, ltd. | Developer | |
| Dawid Fatyga | Developer | |
| Dawiderter | Developer | |
| Dawit Thepchatree | Developer | |
| Dawn Chorus | Developer | |
| Dawn Drake | Developer | |
| Dawn Nyan | Developer | |
| Dawn of Play | Developer | |
| Dawooskhe Games | Developer | |
| Dawud | Developer | |
| Daxic | Developer | |
| Daxtear | Developer | |
| Day | Developer | |
| Day 1 Studios | Developer | |
| Day Lane | Developer | |
| DayDreams-Developer | Developer | |
| DayHam | Developer | |
| DayVord | Developer | |
| Daybreak Game Company | DeveloperPublisher | |
| Daydream Interactive | Developer | |
| Daye Williams | Developer | |
| Dayer | Developer | |
| Dayglo | Developer | |
| Daylight Productions | Developer | |
| Daylight Studios | Developer | |
| Dazariath | Developer | |
| Dazz | DeveloperPublisher | |
| DazzJP | Publisher | |
| DazzleBerryGames | Developer | |
| Dazzulu | Developer | |
| Daïshi | Developer | |
| Dban1 | Developer | |
| Ddewy | Developer | |
| Ddollz | Developer | |
| DeCoded Production | Developer | |
| DeGenerals | Developer | |
| DeJohn | Developer | |
| DePaul Game Elites | Developer | |
| Dead Battery Games | Developer | |
| Dead Cell | Developer | |
| Dead Drop Studios | DeveloperPublisher | |
| Dead Face Studios | Developer | |
| Dead Genre Studios | Developer | |
| Dead Mage | DeveloperPublisher | |
| Dead Monkey Games | Developer | |
| Dead Pixels | Developer | |
| Dead Smurf Software | Publisher | |
| Dead Unicorn | Developer | |
| DeadBang Game Studios | Developer | |
| DeadByte | Developer | |
| DeadGameStudios | Developer | |
| DeadGames Studio | Developer | |
| DeadHead99 | Developer | |
| DeadPlantsCove | Developer | |
| DeadPropellerGames | Developer | |
| DeadSystem | Developer | |
| DeadToast Entertainment | Developer | |
| DeadZombieGirl | Developer | |
| Deadbeat Productions | Developer | |
| Deadline Games | Developer | |
| Deadlycrow Games | Developer | |
| Deadlykarrot | Developer | |
| Deadpan Games | Developer | |
| Deadroach | Developer | |
| Deadtoast | Developer | |
| Deakcor | Developer | |
| DeamonStarwind | Developer | |
| Dean Carter | Developer | |
| Dean Wolfwood | Developer | |
| DeanForge | Developer | |
| Deandra Fallon Warrick | Developer | |
| Dear Future Production Committee | Developer | |
| Dear Villagers | DeveloperPublisher | |
| Dearsoft | Developer | |
| Deasonfun | Developer | |
| Death 2 Moochie | Developer | |
| Death Orgone | Developer | |
| Death by Broccoli | Developer | |
| DeathByBlueScreen | Developer | |
| DeathDev | Developer | |
| DeathYigit | Developer | |
| Deathmachine117 | Developer | |
| Deathmofumofu | Developer | |
| Debayudh Rarhi | Developer | |
| Deboradp | Developer | |
| Deborah | Developer | |
| Decacentum | Developer | |
| DecadeDecaf | Developer | |
| Decappoolla | Developer | |
| Decay of Fundy | Developer | |
| Deccir | Developer | |
| Deccoyi | Developer | |
| Deceleris | Developer | |
| December | Developer | |
| Decemberborn Interactive | Developer | |
| DeciTM | Developer | |
| Decibella | Developer | |
| Decision Development | DeveloperPublisher | |
| Deck 13 | DeveloperPublisher | |
| Deck Nine | Developer | |
| Deck Nine Games | Developer | |
| Deck13 | Publisher | |
| Deck13 Interactive | DeveloperPublisher | |
| Deck13 Spotlight | Publisher | |
| Deckpoint Studio | Developer | |
| Deco Digital | DeveloperPublisher | |
| Decode Games | Developer | |
| Deconstructeam | Developer | |
| DeconstructedMind | Developer | |
| Decoy Games | DeveloperPublisher | |
| Decoy Software | Developer | |
| Decratos | Developer | |
| Dedicave | Developer | |
| Dedjo0 | Developer | |
| Dedreek | Developer | |
| DedutioN | Developer | |
| DeeCeeWorks | Developer | |
| DeeGrim | Developer | |
| DeeJayLSP | Developer | |
| DeeMainiac | Developer | |
| Deeborm | Developer | |
| Deebrol | Developer | |
| Deeli Network Technology | Developer | |
| Deen Kei | Developer | |
| Deep Digital Design | Developer | |
| Deep End Games | DeveloperPublisher | |
| Deep Fried Entertainment | Developer | |
| Deep Red Games | Developer | |
| Deep River Publishing | Publisher | |
| Deep Shadows | Developer | |
| Deep Silver | DeveloperPublisher | |
| Deep Silver Dambuster | Developer | |
| Deep Silver UK | Publisher | |
| Deep Silver Vienna | Developer | |
| Deep SilverPAL | Publisher | |
| Deep SilverPAL EU | Publisher | |
| Deep Space | Developer | |
| Deep Studio | Developer | |
| Deep Thought Software (Keith A. Goodyer, Denis Hickie) | Developer | |
| Deep Thought Software (Keith A. Goodyer, Denis Hickie, Darren Melbourne) | Developer | |
| Deep Vigil Studio | Developer | |
| Deep Water | Publisher | |
| Deep-Fold | Developer | |
| Deepnight Games | Developer | |
| Deer Farm | Developer | |
| Deerbell | Developer | |
| Deerfox Games | Developer | |
| Deerpyboi | Developer | |
| Deex | Developer | |
| Deezaath | Developer | |
| Default Labs | Developer | |
| Default developer | Developer | |
| Defaultsound | Developer | |
| Defentures | Developer | |
| Defiant Ape Studios | Developer | |
| Defiant Development | DeveloperPublisher | |
| DefiantNarwhal | Developer | |
| DefinitelyNotAShark | Developer | |
| Deflorio | Developer | |
| Defo Mort | Developer | |
| DeftBlue | Developer | |
| Degica | Publisher | |
| Degica Games | Publisher | |
| Degoma | DeveloperPublisher | |