| 26468 | C.D.U. | ZX-Spectrum 48K | Italian |
| 12440 | CJ in Space | ZX-Spectrum 48K | English |
| 9322 | CJ in the USA | ZX-Spectrum 48K/128K | English |
| 9323 | CJ's Elephant Antics | ZX-Spectrum 48K/128K | English |
| 30061 | CSU | ZX-Spectrum 48K | Spanish |
| 38870 | Cadê os Artigos? | ZX-Spectrum 48K | Portuguese |
| 45219 | Cafetonic | ZX-Spectrum 48K/128K | Spanish |
| 794 | Camelot Warriors | ZX-Spectrum 48K | - |
| 30182 | Canabalt | ZX-Spectrum 16K | English |
| 30159 | Cap'n Rescue | ZX-Spectrum 48K | English |
| 30233 | Cap'n Rescue 2: The Escape | ZX-Spectrum 48K/128K | English |
| 30297 | Cap'n Rescue 3: Reprisal | ZX-Spectrum 48K/128K | English |
| 34921 | Captain Comic | SAM Coupé | English |
| 41848 | Captain Square Jaw | ZX-Spectrum Next | English |
| 44262 | Castle | SAM Coupé | English |
| 30368 | Castle Capers | ZX-Spectrum 48K/128K | English |
| 44549 | Castle Capers 2 | ZX-Spectrum 128K | English |
| 38514 | Castle Escape | ZX-Spectrum 128K | English |
| 38781 | Castle Escape | ZX-Spectrum Next | English |
| 32244 | Castle of Sorrow | ZX-Spectrum 48K | Multi-language: English, Spanish |