| 31262 | Collateral Damage | - | English |
| 36220 | Collect-a-Key | ZX-Spectrum 16K | English |
| 7325 | Collected Works | ZX-Spectrum 48K/128K | English |
| 8025 | Collector's Pack | ZX-Spectrum 48K | English |
| 28769 | Collectors Corner | ZX81 16K | English |
| 30714 | Collier's First Law of Usenet | - | English |
| 2000068 | Collins Gem Dictionary of Computing | - | English |
| 2000525 | Collins Gem Micro Facts Sinclair ZX Spectrum | - | English |
| 39665 | Collision | ZX-Spectrum 16K/48K | English |
| 1010 | Collision Course | ZX-Spectrum 48K | English |
| 36102 | Collision Regulations | ZX-Spectrum 48K | English |
| 1012 | Collywobbles | ZX-Spectrum 48K | English |
| 36342 | Coloco | ZX-Spectrum 48K | English |
| 34920 | Colony | SAM Coupé | English |
| 1013 | Colony | ZX-Spectrum 48K | English |
| 1014 | Colony | ZX-Spectrum 48K | English |
| 42348 | Colony Invader | ZX-Spectrum 48K | English |
| 21124 | Color Balls | ZX-Spectrum 48K | English |
| 12778 | Color Lines | ZX-Spectrum 128K | English |
| 12782 | Color Lines | ZX-Spectrum 128K | English |