| 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 | |