| 1087 | Cosmos | ZX-Spectrum 16K | English |
| 36956 | Covidians | ZX-Spectrum 48K/128K | English |
| 42697 | Covidians Extended | ZX-Spectrum 48K/128K | Spanish |
| 16177 | Cow Boy | ZX-Spectrum 48K | Spanish |
| 15419 | Cowboy | ZX-Spectrum 48K | English |
| 25559 | Cowboy | ZX-Spectrum 48K | English |
| 1104 | Cowboy Kidz | ZX-Spectrum 48K | English |
| 16783 | Cowboy Shoot Out | ZX-Spectrum 16K | English |
| 1105 | Cowboy Shootout | ZX-Spectrum 16K | English |
| 19980 | Cowboy Shootout | ZX-Spectrum 48K | English |
| 35551 | Cowboys - The Pistols Fighters | ZX-Spectrum 48K | English |
| 36861 | Crap 256 Byte Scramble | ZX-Spectrum 48K | English |
| 30785 | Crap Invaders | ZX-Spectrum 48K | English |
| 19906 | Crash | ZX-Spectrum 48K | English |
| 36504 | Crazy Blaster | ZX-Spectrum 48K | English |
| 31497 | Crazy Kong City - Episode 2: Saving Kong | ZX-Spectrum 48K/128K | English |
| 1158 | Critical Mass | ZX-Spectrum 48K | English |
| 37628 | Cross Bomber | ZX-Spectrum 48K | English |
| 36847 | Cross Horde | ZX-Spectrum 48K | English |
| 37629 | Cross Shoot | ZX-Spectrum 48K | English |