| 11318 | Over the Spectrum Cassette 2 | ZX-Spectrum 16K | English |
| 11974 | Over the Spectrum Cassette 3 | ZX-Spectrum 16K | English |
| 29606 | Over the Wall | ZX81 1K | English |
| 34406 | Over the board | Pentagon 128 | English |
| 25071 | OverLoad XOR and Overflow | ZX-Spectrum 48K | English |
| 28041 | OverSide 3D | ZX-Spectrum 48K | English |
| 30480 | Overboard | ZX-Spectrum 48K | English |
| 15131 | Overdog | ZX-Spectrum 48K | English |
| 42630 | Overis | ZX-Spectrum 16K | English |
| 3568 | Overkill | ZX-Spectrum 48K | English |
| 3569 | Overlander | ZX-Spectrum 48K/128K | English |
| 3571 | Overload | ZX-Spectrum 48K | English |
| 3572 | Overlord | ZX-Spectrum 48K | English |
| 28051 | Overlord + Stalingrad | ZX-Spectrum 48K | English |
| 3573 | Overlords | ZX-Spectrum 48K | English |
| 7636 | Overscan Demo | ZX-Spectrum 48K/128K | English |
| 7637 | Oversun 4K | ZX-Spectrum 128K | English |
| 18422 | Overtake | ZX-Spectrum 16K | English |
| 31167 | Overtake the POPE 2 | ZX-Spectrum 16K | English |
| 31117 | Overtake the Pope | ZX-Spectrum 16K | English |