| 15884 | The Colliery | ZX-Spectrum 48K | English |
| 42379 | The Color Challenge's Jailbreak! | ZX-Spectrum 48K | English |
| 1095 | The Count | ZX-Spectrum 48K | English |
| 19893 | The Crisp Factory | ZX-Spectrum 48K | English |
| 41334 | The Crossing | ZX81 16K | English |
| 35696 | The Crystal Frog | ZX81 32K | English |
| 37491 | The Cubic Experience | ZX-Spectrum 48K/128K | Multi-language: English, Spanish |
| 35112 | The Curse of Trasmoz | ZX-Spectrum 48K/128K | English |
| 24888 | The Dark | ZX-Spectrum 48K | Russian |
| 12799 | The Dark | ZX-Spectrum 128K | English |
| 37649 | The Dark: Lost Pages | ZX-Spectrum 48K/128K | English |
| 37608 | The Dark: Redux | ZX-Spectrum 48K | Multi-language: English, Russian |
| 17706 | The Deadly Tunnels of Zarnon | ZX-Spectrum 48K | English |
| 1311 | The Deep | ZX-Spectrum 48K | English |
| 20040 | The Diamond | ZX-Spectrum 48K | English |
| 40725 | The Dictator | ZX81 16K | English |
| 31383 | The Display File of Sisyphus | ZX-Spectrum 48K | English |
| 17195 | The Dome | ZX-Spectrum 128K | English |
| 19189 | The Drinker | ZX-Spectrum 48K | - |
| 1533 | The Duct | ZX-Spectrum 48K | English |