| 19877 | Cassette 8420 | ZX-Spectrum 48K | English |
| 11560 | Cassette A | ZX-Spectrum 16K | English |
| 15694 | Cassette Juegos | ZX-Spectrum 48K | Spanish |
| 24437 | Cassette S1 | ZX-Spectrum 48K | English |
| 24476 | Cassette S2 | ZX-Spectrum 48K | English |
| 24477 | Cassette S3 | ZX-Spectrum 48K | English |
| 12263 | Castle Colditz + Battle of the Toothpaste Tubes | ZX-Spectrum 48K | English |
| 13902 | Castle Master + Castle Master II: The Crypt | ZX-Spectrum 48K | English |
| 18946 | Castle of Doom + Missile Command | ZX-Spectrum 48K | English |
| 19433 | Cathouse Blues + Philly Flasher | ZX-Spectrum 48K | English |
| 11407 | Cauldron I & II | ZX-Spectrum 48K | English |
| 27209 | Cave Wars + Swindler | ZX-Spectrum 48K | Russian |
| 12265 | Cavern Chaos + Ptarmigan | ZX-Spectrum 48K | English |
| 11568 | Cecco Collection | ZX-Spectrum 48K | English |
| 12266 | Centipede + Galaxions | ZX-Spectrum 48K | English |
| 11219 | Centipede + Painter | ZX-Spectrum 16K | English |
| 10466 | Challenge | ZX-Spectrum 16K | English |
| 31559 | Challenge | ZX81 1K | - |
| 11570 | Challengers | ZX-Spectrum 48K | English |
| 13161 | Champions | ZX-Spectrum 48K | English |