| Coreplay | Developer | |
| Coresaken | Developer | |
| Coresoft | DeveloperPublisher | |
| CoresoftNA | Developer | |
| Corey Martin | Developer | |
| Corey Van Hoosen | Developer | |
| Coreylr197 | Developer | |
| CorgiBits | Developer | |
| Coria | Developer | |
| CorianderGames | Developer | |
| CorinnaChen | Developer | |
| Cork2312 | Developer | |
| Corkers | Publisher | |
| Cormorant42 | Developer | |
| CornBoy | Developer | |
| Cornejoo | Developer | |
| CornerPoint | Developer | |
| Cornered Rat Software | Developer | |
| Cornflake | Developer | |
| CornflakeSavage | Developer | |
| Cornfox & Bros. | Developer | |
| Cornfox & Brothers | Developer | |
| Cornutopia Software | Developer | |
| Coronadev | Developer | |
| Corporate Entity, LLC | Developer | |
| Corpsegrinder | Developer | |
| CorpsyCorpTeam | Developer | |
| Corrade | Developer | |
| Corran Nolan | Developer | |
| CorruptedMedia | Developer | |
| Corso | Developer | |
| Corspace Team | Developer | |
| Cortanium | Developer | |
| Corvaena | Developer | |
| CorvatoCafeto | Developer | |
| Corvidae | Developer | |
| Corvidae_Games | Developer | |
| Corvo Bianco Entertainment | Developer | |
| Corvostudio di Amadei Marco | DeveloperPublisher | |
| Corvus Prudens | Developer | |
| Cory | Developer | |
| CoryAlexMartin | Developer | |
| CoryMcD | Developer | |
| Cosen | DeveloperPublisher | |
| Coshlobato | Developer | |
| Cosi1125 | Developer | |
| Cosmi Corporation | DeveloperPublisher | |
| Cosmic Adventure Squad | Developer | |
| Cosmic Brew | Developer | |
| Cosmic Company | Developer | |