| 26468 | C.D.U. | ZX-Spectrum 48K | Italian |
| 22485 | C.L.I. | ZX-Spectrum 48K | English |
| 779 | C5 Clive | ZX-Spectrum 48K | English |
| 18296 | C5 Sprint | ZX-Spectrum 48K | English |
| 11548 | CAD - Computer Aided Designer | ZX-Spectrum 48K | English |
| 7999 | CAD-Master - Light Pen & Graphics Software | ZX-Spectrum 48K | English |
| 27408 | CADL | ZX-Spectrum 48K | Spanish |
| 8035 | CAGD | ZX-Spectrum 48K | German |
| 31028 | CAR GAME! | ZX-Spectrum 48K | English |
| 36538 | CASIO Digit Invaders | ZX-Spectrum 48K | English |
| 22949 | CAT$ | ZX-Spectrum 48K | English |
| 22042 | CAT&LOAD | ZX-Spectrum 48K | English |
| 30422 | CATS - Faith Edition | ZX-Spectrum 48K | English |
| 32161 | CATS - Mint Edition | ZX-Spectrum 48K | English |
| 40296 | CB Talker | ZX-Spectrum 48K | English |
| 38357 | CBC | ZX-Spectrum 48K | Czech |
| 38358 | CBD | ZX-Spectrum 48K | Czech |
| 44243 | CCM | ZX-Spectrum 48K | English |
| 21769 | CD Walk | ZX-Spectrum 48K | English |
| 42075 | CECSoftClone | ZX-Spectrum 48K | English |