| 42711 | Old Skool Coding Old School Style | ZX-Spectrum 128K | Multi-language: English, Russian |
| 7627 | One Day Demo | ZX-Spectrum 128K | English |
| 7628 | One Too Many 2: The Total Piss-Up | ZX-Spectrum 128K | English |
| 7629 | One Too Many 3 | ZX-Spectrum 128K | English |
| 19051 | Ophra Haza | ZX-Spectrum 128K | English |
| 7631 | Orange | ZX-Spectrum 128K | English |
| 7634 | Out Demo | ZX-Spectrum 128K | English |
| 34953 | Out of Colour | SAM Coupé | English |
| 16660 | Out of Time | ZX-Spectrum 48K | Slovak |
| 7635 | Out of ZSL | ZX-Spectrum 128K | English |
| 42061 | Over Relaxed | Pentagon 128 | English |
| 7636 | Overscan Demo | ZX-Spectrum 48K/128K | English |
| 34748 | Oxygene 7 | ZX-Spectrum 128K | English |
| 7672 | PSG-Wins | ZX-Spectrum 128K | English |
| 14817 | Paint-Demo | ZX-Spectrum 48K | German |
| 7638 | Pancake | ZX-Spectrum 128K | Polish |
| 37772 | Parallax Type-in | ZX-Spectrum 48K | English |
| 7639 | Paroxyzm | ZX-Spectrum 128K | English |
| 42353 | Partyscroller | ZX-Spectrum 128K | English |
| 29166 | Patterns | ZX81 2K | - |