Game System
- Champions (Hero System)1
- Chez Games1
- Chez Guevara1
- Circus Maximus from Avalon Hill1
- Clans1
- Clash of Swords1
- Clash of the Gladiators1
- Coloretto1
- Conan - The Roleplaying Game1
- Conan RPG1
- Confrontation Third Edition1
- Constructed1
- Cosmic Encounter1
- Cosmic Wimpout1
- Creepy Freaks1
- D&D 3.51
- D&D D201
- Darwin's World1
- Darwins World1
- Dawn patrol1