| 1028 | Combat School | ZX-Spectrum 48K/128K | English |
| 25258 | Communication Data Operating System | ZX-Spectrum 48K/128K | English |
| 5797 | Compendium | ZX-Spectrum 48K/128K | English |
| 12381 | Complete Machine Code Package | ZX-Spectrum 48K/128K | English |
| 37436 | Compukit UK101 emulator | ZX-Spectrum 48K/128K | English |
| 1051 | Connect 4 | ZX-Spectrum 48K/128K | English |
| 1057 | Continental Circus | ZX-Spectrum 48K/128K | English |
| 7327 | Cool Cliff | ZX-Spectrum 48K/128K | English |
| 22971 | Cop-A-Disc | ZX-Spectrum 48K/128K | English |
| 35816 | Corey Coolbrew | ZX-Spectrum 48K/128K | English |
| 1074 | Corsarios | ZX-Spectrum 48K/128K | Spanish |
| 1076 | Cosa Nostra | ZX-Spectrum 48K/128K | Spanish |
| 36518 | Cosmic Payback | ZX-Spectrum 48K/128K | English |
| 1085 | Cosmic Shock Absorber | ZX-Spectrum 48K/128K | English |
| 1091 | Count Duckula 2 | ZX-Spectrum 48K/128K | English |
| 36956 | Covidians | ZX-Spectrum 48K/128K | English |
| 42697 | Covidians Extended | ZX-Spectrum 48K/128K | Spanish |
| 1109 | Crack Down | ZX-Spectrum 48K/128K | English |
| 39298 | Cracky | ZX-Spectrum 48K/128K | English |
| 30337 | Crappy Crates | ZX-Spectrum 48K/128K | English |