Game System
- Cartoon Action Hour1
- Castle Falkenstein1
- Castles of Mad King Ludwig1
- Cavaliers of Mars1
- Cerberus Deck-Building1
- Chaos Cove1
- Chess1
- Circular Reasoning1
- Conflict of Heroes: Awakening the Bear1
- Conquest of the Planet Earth1
- Constitution Quest1
- Consumption1
- Coup1
- Critical!: Go Westerly1
- Cthulhu Tech1
- Cthulhu!!!1
- Current Number of the Beast1
- Curse the Darkness1
- Cyberpunk1
- Dark Ages: Werewolf1