| 28514 | CD2 SAM Tape to Disc Transfer Utility | SAM Coupé | English |
| 42075 | CECSoftClone | ZX-Spectrum 48K | English |
| 42124 | CP-3 | ZX-Spectrum 48K | Portuguese |
| 18795 | CSaver | ZX-Spectrum 48K | Danish |
| 28515 | CT1 SAM Advanced Tape Utility | SAM Coupé | - |
| 28516 | CT2 SAM Advanced Tape Utility | SAM Coupé | - |
| 38879 | Carlos Key | ZX-Spectrum 48K | Portuguese |
| 36324 | Carlos Key | ZX-Spectrum 48K | Portuguese |
| 22338 | Cartod | ZX-Spectrum 48K | English |
| 19879 | Cassette Copier | ZX-Spectrum 48K | English |
| 25410 | Cassette Copy | ZX-Spectrum 16K | English |
| 42079 | Chave | ZX-Spectrum 48K | English |
| 44431 | Chiclete | ZX-Spectrum 48K | Portuguese |
| 8021 | Clive Copier | ZX-Spectrum 48K | English |
| 19345 | Clone | ZX-Spectrum 16K | English |
| 39382 | Clone | ZX-Spectrum 48K | English |
| 19939 | Clone | ZX-Spectrum 16K | English |
| 11056 | Clone-it | ZX-Spectrum 48K | English |
| 38886 | Cloner | ZX-Spectrum 48K | Portuguese |
| 19943 | Codecopy | ZX-Spectrum 16K | English |