| Classified Games NA | Publisher | |
| Classof09 | Developer | |
| Claude Sablatou | Developer | |
| Claudio Cimini | Developer | |
| Claudio Vertemara | Developer | |
| ClaudioA | Developer | |
| Claudiu Kiss | Developer | |
| ClawGames | Developer | |
| Claws Up Games | Developer | |
| ClawsDev | Developer | |
| Clay Hellman | Developer | |
| ClayLoam | Developer | |
| ClayManZ | Developer | |
| ClayTaeto | Developer | |
| Claymaker | Developer | |
| ClaymoreGwen | Developer | |
| Claytechworks | Developer | |
| Clayton Does Things | Developer | |
| CleanCutGames | Developer | |
| CleanWaterSoft | Developer | |
| Cleansing-Kaschmir | Developer | |
| Clear World Games | Developer | |
| Cleave | Developer | |
| Cleaversoft | DeveloperPublisher | |
| CleberAlessandro | Developer | |
| Clef | DeveloperPublisher | |
| Clembod | Developer | |
| Clement Panchout | Developer | |
| ClementH | Developer | |
| Clementine | Developer | |
| ClementsJR | Developer | |
| ClemiNeko | Developer | |
| Cletus | Developer | |
| Cletus G | Developer | |
| Clever Beans | Developer | |
| Clever Endeavour Games | DeveloperPublisher | |
| Clever Plays | DeveloperPublisher | |
| Clever's Development | Developer | |
| Clever's Games | Developer | |
| Clever's Software Development | Developer | |
| CleverAI | Developer | |
| CleverCap | Developer | |
| Clevertop | Developer | |
| Cleverweek | Developer | |
| Cleyson Toledo | Developer | |
| Click | Developer | |
| Click Entertainment | Developer | |
| ClickBuildGames | Developer | |
| Clickteam | DeveloperPublisher | |
| Cliff Bleszinski | Developer | |
| Cliff J Ogden | Developer | |
| Cliff Johnson | DeveloperPublisher | |
| Cliff Lee CL | Developer | |
| Cliffhanger Productions | Developer | |
| CliffracerX | Developer | |
| Cliffside | Developer | |
| Climacus | Developer | |
| Climax | Developer | |
| Climax Brighton | Developer | |
| Climax Development | Developer | |
| Climax Entertainment | Developer | |
| Climax Graphics | Developer | |
| Climax Group | Developer | |
| Climax Solent | Developer | |
| Climax Studios | Developer | |
| Clinginglies | Developer | |
| Clip House | Developer | |
| ClipartDev | Developer | |
| Clipper | Developer | |
| Clipper Software | Developer | |
| Clive Brooker | Developer | |
| Clive Paul | Developer | |
| Clive Thompson | Developer | |
| Clive Townsend | Developer | |
| Clive Wilson | Developer | |
| Cloak and Dagger Games | Developer | |
| Cloaked Eye Software | Developer | |
| Cloaked Games | Developer | |
| CloakedBytes | Developer | |
| ClockStone | Developer | |
| Clockstone Studio | Developer | |
| Clockwize (Dean Hickingbottom) | Developer | |
| Clockwize (Gary Wood, Dean Hickingbottom) | Developer | |
| Clockwize (Keith A. Goodyer) | Developer | |
| Clockwize (Keith A. Goodyer, Dean Hickingbottom) | Developer | |
| Clockwize (Keith A. Goodyer, Dean Hickingbottom, David Bradley) | Developer | |
| Clockwize (Keith A. Goodyer, Dean Hickingbottom, David Bradley, David Whittaker) | Developer | |
| Clockwize (Keith A. Goodyer, Denis Hickie, Jaine Hickie) | Developer | |
| Clockwork Dragon Games | Developer | |
| Clockwork Games | Developer | |
| Clockwork Games Limited | Developer | |
| Clockwork Hippo | Developer | |
| Clockwork Pixels | Developer | |
| Clockwork Prince | Developer | |
| Clockwork Tortoise | Developer | |
| Clockwork bird | Developer | |
| CloneDeath | Developer | |
| Clorinthe | Developer | |
| Clotruad | Developer | |
| Cloud 9 Interactive | Developer | |