| 41476 | Compact QL Trace | Sinclair QL | English |
| 26857 | Compactor | ZX-Spectrum 16K | English |
| 26858 | Compactor | ZX-Spectrum 48K | English |
| 23642 | Compaedia | ZX-Spectrum 48K | English |
| 23070 | Compander | ZX-Spectrum 48K | English |
| 22316 | Compass | ZX-Spectrum 48K | English |
| 11601 | Compass Collection 1 | ZX-Spectrum 48K | English |
| 11602 | Compass Collection 2 | ZX-Spectrum 48K | English |
| 40363 | Compatibility | ZX-Spectrum 48K | English |
| 5797 | Compendium | ZX-Spectrum 48K/128K | English |
| 13937 | Compendium | ZX-Spectrum 16K | English |
| 19911 | Compendium of Card and Dice Games | ZX-Spectrum 16K | English |
| 32340 | Competition 96 - An Interactive Guide (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 40106 | Compiler | ZX81 16K | English |
| 11603 | Compiler | ZX-Spectrum 48K | English |
| 19950 | Compiler.XTN | ZX-Spectrum 128K | English |
| 12381 | Complete Machine Code Package | ZX-Spectrum 48K/128K | English |
| 24480 | Complete Money | ZX-Spectrum 48K | English |
| 40691 | Complete Music | ZX80 | English |
| 2000074 | Complete Sinclair QL ROM Dissasembly | Sinclair QL | English |