| 26442 | Circus | ZX-Spectrum 48K | Italian |
| 9603 | Circus Circus | ZX-Spectrum 48K | English |
| 967 | Circus Games | ZX-Spectrum 48K/128K | English |
| 13450 | Citadel | ZX-Spectrum 48K | English |
| 36162 | Citadel | Sinclair QL | - |
| 974 | City Connection | ZX-Spectrum 48K | English |
| 39293 | City Connection 128K | ZX-Spectrum 128K | English |
| 38913 | City Defence | ZX-Spectrum 48K | English |
| 39566 | City Defender | ZX-Spectrum 16K | English |
| 31924 | City Escape | ZX81 1K | English |
| 42958 | City Lander | ZX81 16K | English |
| 21616 | City Patrol | ZX-Spectrum 128K | English |
| 21844 | City Patrol | ZX-Spectrum 48K | English |
| 9604 | City-Bomb | ZX-Spectrum 48K | English |
| 17607 | Ciudadela | ZX-Spectrum 48K | Spanish |
| 31411 | ClINT AND FOReskIN | ZX-Spectrum 48K | English |
| 37178 | ClINT AND da CrABS | ZX-Spectrum 48K | English |
| 43669 | Clam Diver | ZX-Spectrum 16K | English |
| 20940 | Classic Japanese Monster Castle | ZX-Spectrum 48K | Spanish |
| 20923 | Classic Japanese Monster Castle 2 | ZX-Spectrum 48K | Spanish |