| 25727 | Classroom Adventure | ZX-Spectrum 48K | English |
| 10744 | Clerics Quest | ZX-Spectrum 48K | English |
| 10745 | Clutches of the Balrog | ZX-Spectrum 48K | English |
| 17379 | Codigo Secreto Lucybel: Apocalypse | ZX-Spectrum 48K | Spanish |
| 17377 | Codigo Secreto Lucybel: Cryogenic | ZX-Spectrum 48K | Spanish |
| 17378 | Codigo Secreto Lucybel: Evilution | ZX-Spectrum 48K | Spanish |
| 36080 | Coke Is It! (ZxZvm) | ZX-Spectrum 128 +3 | - |
| 44633 | Colley Adventure | ZX-Spectrum 48K | Slovak |
| 9614 | Collwobbles | ZX-Spectrum 48K | German |
| 35926 | Colossal Adventure | ZX81 16K | English |
| 6097 | Colossal Adventure | ZX-Spectrum 16K/48K | English |
| 18948 | Colossal Cave | ZX-Spectrum 48K | English |
| 6099 | Colossal Cave Adventure | ZX-Spectrum 48K | English |
| 37444 | Colour Beyond Time | ZX-Spectrum 48K | English |
| 32339 | Coming Home - A Simple Home Adventure (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 35364 | Commando | ZX-Spectrum 48K | Czech |
| 6101 | Commando | ZX-Spectrum 48K | English |
| 21804 | Commodore 64 Adventure | ZX-Spectrum 48K | Serbo-Croatian |
| 32340 | Competition 96 - An Interactive Guide (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 6103 | Computer | ZX-Spectrum 48K | Czech |