| Castle Coven Gaming | Developer | |
| Castle Pixel | DeveloperPublisher | |
| Castle Thorn Software LLC | DeveloperPublisher | |
| Castleworks Gameware | Developer | |
| Casual Brothers Games | Developer | |
| Casual Game Design | Developer | |
| Casual Pixel | Developer | |
| Casual42 | Developer | |
| Casualgames.nu | Developer | |
| Cat And Nate | Developer | |
| Cat Daddy Games | Developer | |
| Cat Daddy Games LLC | Developer | |
| Cat Evans | Developer | |
| Cat Night | Developer | |
| Cat Nigiri | Developer | |
| Cat Tastrophe Games | Developer | |
| Cat Trap Studios | DeveloperPublisher | |
| Cat's Pro | DeveloperPublisher | |
| CatBaronAle | Developer | |
| CatBotCrew | Developer | |
| CatGazing | Developer | |
| CatInAJar | Developer | |
| CatJail Studios | Developer | |
| CatProgrammer_not | Developer | |
| CatShrine | Developer | |
| CatalinN1 | Developer | |
| Catalina | Publisher | |
| Catalope Games | Developer | |
| Catalyst | Developer | |
| Catalyst Coders (Bob Pape, Mark A Jones, Colin Tuck) | Developer | |
| Catalyst Coders (Tony Mack, Eddie, Ray Jones, Chris Edwards) | Developer | |
| Catalyst Coders (Tony Mack, Mark A Jones) | Developer | |
| CatandTonic | Developer | |
| Catapult Games | Developer | |
| Catastrophic Overload | Developer | |
| Catastrophically-CR | Developer | |
| Cataxis | Developer | |
| Catbarrel | Developer | |
| Catbell Games | Developer | |
| Catbox | Developer | |
| Catch All | Developer | |
| Catchweight Studio | Developer | |
| Cateia Games | Developer | |
| Catelt | Developer | |
| Catelyn | Developer | |
| CaterBlack_Studio | Developer | |
| Caterpillar Games | Developer | |
| CaterpillarDream | Developer | |
| Catfish Crew | Developer | |
| CatfishBlues Games | DeveloperPublisher | |
| Catghost | Developer | |
| Cathelios | Developer | |
| Catherine | Developer | |
| Cathy!? Trang | Developer | |
| Catman87 | Developer | |
| Catnip Games | Developer | |
| Cato Productions | Developer | |
| Catom Games | Developer | |
| Catonecca | Developer | |
| Catpanions | Developer | |
| Catpure | Developer | |
| CatroomDrama | Developer | |
| Cats Under Pressure | Developer | |
| Cats4ever | Developer | |
| CatsGoneWild | Developer | |
| Catsoft Studios | Developer | |
| Catt Small | Developer | |
| Cattle Call | Developer | |
| Catware | Developer | |
| Catwheel | Developer | |
| Cauldron | Developer | |
| Cauldron HQ | Developer | |
| Cauldron Ltd | Developer | |
| Cauldron Ltd. | Developer | |
| CauliFlowerz | Developer | |
| Causal Bit Games | DeveloperPublisher | |
| Caustic Reality | Developer | |
| Cauê Henrique | Developer | |
| CavaGames | Developer | |
| Cavalier Computer | DeveloperPublisher | |
| Cavalier Game Studios | Developer | |
| Cave | DeveloperPublisher | |
| Cave Barn | Developer | |
| Cave Barn Studios | Developer | |
| Cave Cat Games | Developer | |
| Cave Interactive | Developer | |
| Cave Torch Games | Developer | |
| CaveBoy36 | Developer | |
| CaveFLying | Developer | |
| CaveJP | Publisher | |
| CaveMonsters | Developer | |
| Cavedog Entertainment | DeveloperPublisher | |
| CavelMan | Developer | |
| Caveman Labs | Developer | |
| Cavemanon | Developer | |
| CavenaghiFrancisco | Developer | |
| CavernaWare | Developer | |
| Caveware Digital | Developer | |
| Cavia | Developer | |
| Cavia Inc. | Developer | |
| Cavvvalry | Developer | |
| Cavyhouse | Developer | |
| Cawotte | Developer | |
| Ccfin | Developer | |
| CcinoWrath | Developer | |
| Ccookie | Developer | |
| CdogTheAmazing | Developer | |
| Cdv Software Entertainment | Publisher | |
| Cecihoney | Developer | |
| Cecilia Cortez | Developer | |
| Cedar Cat Studios | Developer | |
| CedarBishop | Developer | |
| Cedric Stoquer | Developer | |
| Cedric_Robotman | Developer | |
| Cedric_wse | Developer | |
| Cedrine | Developer | |
| Cedsson | Developer | |
| Cekitian | Developer | |
| Cel C. | Developer | |
| CelStudios | Developer | |
| CelTech Studios | DeveloperPublisher | |
| Celeris | DeveloperPublisher | |
| Celeris Inc | Developer | |
| Celeris Inc. | Developer | |
| CeleritasGames | Developer | |
| Celery Emblem | Developer | |
| Celestea Productions | Developer | |
| Celestial Games | Developer | |
| Celestial Software | Developer | |
| Celestial Toast | Developer | |
| CelestialAmber | Developer | |
| Celia | Developer | |
| Celianna | Developer | |
| Celine Veltman | Developer | |
| Celitus | Developer | |
| CellNavi | DeveloperPublisher | |
| Cellar Door Games | DeveloperPublisher | |
| Cellar Vault Games | Developer | |
| Cellusious | Developer | |
| Celomanx | Developer | |
| Celta02 | Developer | |
| Celthim | Developer | |
| CemCkrc | Developer | |
| Cemus | Developer | |
| Cenega | Publisher | |
| Cenega Publishing | Publisher | |
| CenkGames | Developer | |
| Centicerise | Developer | |
| Central Denshi | Publisher | |
| Central Internet Bureau | Developer | |