| 1038 | Comipini | ZX-Spectrum 48K | Spanish |
| 17316 | Commando Jump | ZX-Spectrum 16K | English |
| 31108 | Commode Nybbler Part Deux | ZX-Spectrum 48K | English |
| 40219 | Communicator | ZX-Spectrum 48K | English |
| 41613 | Compac | ZX81 16K | English |
| 31146 | Complete Useless Machine Simulator | ZX-Spectrum 16K | English |
| 34492 | Computact | ZX81 16K | English |
| 40987 | Computer Car | ZX81 16K | English |
| 27404 | Computer Cargo Conquest | ZX-Spectrum 48K | English |
| 40858 | Computer Combat | ZX81 16K | English |
| 41532 | Computer Golf | ZX81 16K | English |
| 40096 | Computer Surround | ZX-Spectrum 48K | English |
| 34493 | Computer Talk | ZX81 16K | English |
| 16070 | Conductor Novato | ZX-Spectrum 48K | Spanish |
| 26423 | Confuze | ZX-Spectrum 48K | Italian |
| 40265 | Conga | ZX-Spectrum 48K | English |
| 14487 | Congo Bongo | ZX-Spectrum 48K | English |
| 41631 | Connections | ZX81 16K | English |
| 15691 | Contraption | ZX-Spectrum 48K | English |
| 41322 | Conveyor Belt | ZX81 16K | English |