| 36220 | Collect-a-Key | ZX-Spectrum 16K | English |
| 1012 | Collywobbles | ZX-Spectrum 48K | English |
| 36342 | Coloco | ZX-Spectrum 48K | English |
| 38821 | Colonos III | ZX-Spectrum 48K/128K | Multi-language: English, Spanish |
| 35338 | Colonos ZX | ZX-Spectrum 48K | Spanish |
| 42348 | Colony Invader | ZX-Spectrum 48K | English |
| 42652 | Colorfusion | ZX-Spectrum 16K | English |
| 44124 | Colour The Pyramid | ZX-Spectrum 48K | English |
| 44626 | Columbia | ZX81 16K | French |
| 1022 | Comando Quatro | ZX-Spectrum 48K | Spanish |
| 20685 | Combat Droid Simulator | ZX-Spectrum 48K | English |
| 1028 | Combat School | ZX-Spectrum 48K/128K | English |
| 37371 | Combat Wombat | ZX-Spectrum 48K | English |
| 38887 | Combate | ZX-Spectrum 48K | Portuguese |
| 39877 | Combinations | ZX-Spectrum 48K | English |
| 31412 | Come Come, Mrs Pickford Its Only a Vegetable | ZX-Spectrum 48K | English |
| 16278 | Come Estrellas | ZX-Spectrum 48K | Spanish |
| 35363 | Comeback Early Home | ZX-Spectrum 48K | English |
| 43747 | Comecocos | ZX-Spectrum 16K/48K | Spanish |
| 42088 | Comecocos | ZX-Spectrum 48K | Spanish |