| 24953 | The Open - Gleneagles Kings | ZX-Spectrum 48K | English |
| 24954 | The Open - Gleneagles Queens | ZX-Spectrum 48K | English |
| 24956 | The Open - Muirfield | ZX-Spectrum 48K | English |
| 24959 | The Open - Pebble Beach | ZX-Spectrum 48K | English |
| 24961 | The Open - Pinehurst | ZX-Spectrum 48K | English |
| 24454 | The Open - Royal Birkdale | ZX-Spectrum 48K | English |
| 24957 | The Open - Royal Lytham & St. Annes | ZX-Spectrum 48K | English |
| 24958 | The Open - Royal St. George | ZX-Spectrum 48K | English |
| 24962 | The Open - Sunningdale | ZX-Spectrum 48K | English |
| 24955 | The Open - Troon | ZX-Spectrum 48K | English |
| 6760 | The Open Door | ZX-Spectrum 48K | English |
| 6764 | The Oppressed Land | ZX-Spectrum 48K | English |
| 20398 | The Oracle | ZX-Spectrum 48K | English |
| 31742 | The Oracle's Cave | ZX81 16K | English |
| 3539 | The Oracle's Cave | ZX-Spectrum 48K | English |
| 1182 | The Orb | ZX-Spectrum 48K | English |
| 30244 | The Order of Mazes | ZX-Spectrum 48K | English |
| 15343 | The Outlet Clipper 001 | ZX-Spectrum 48K | English |
| 14752 | The Outlet Clipper 002 | ZX-Spectrum 48K | English |
| 14753 | The Outlet Clipper 003 | ZX-Spectrum 48K | English |