| 7333 | Crazy Sound Analyser | ZX-Spectrum 128K | English |
| 27330 | Crime Quiz | ZX-Spectrum 128K | English |
| 12790 | Crime Santa Clause 2 | ZX-Spectrum 128K | Russian |
| 12791 | Crime Santa Clause: Deja Vu | ZX-Spectrum 128K | Russian |
| 27240 | Crime Screen | ZX-Spectrum 128K | English |
| 22195 | Crockett's Theme | ZX-Spectrum 128K | English |
| 12793 | Crossword | ZX-Spectrum 128K | Russian |
| 12794 | Crossword | ZX-Spectrum 128K | Russian |
| 12795 | Crusher | ZX-Spectrum 128K | English |
| 12796 | Crystal Dream Members in East Ukrainian State University | ZX-Spectrum 128K | Russian |
| 30381 | Crystal Kingdom Dizzy 2017 | ZX-Spectrum 128K | English |
| 44322 | Crystal Kingdom Dizzy 2025 - Redux Edition | ZX-Spectrum 128K | Multi-language: English, Russian |
| 21004 | Cuando Llega la Noche | ZX-Spectrum 128K | Spanish |
| 42336 | Cube One | ZX-Spectrum 128K | English |
| 43197 | Cubes | ZX-Spectrum 128K | English |
| 44487 | Cubix | ZX-Spectrum 128K | English |
| 12797 | Curse of Xeen | ZX-Spectrum 128K | English |
| 43617 | Cursed Castle 2 | ZX-Spectrum 128K | English |
| 43950 | Cursed Castle DX | ZX-Spectrum 128K | English |
| 1194 | Cyberball | ZX-Spectrum 128K | English |