| Sinclair ZX Spectrum cass. |  O Level Maths Revision - Trigonometry | 1984 | Rose Soft. |
| Sinclair ZX Spectrum cass. | O Level Physics Revision - Light And Heat | 1984 | Rose Soft. |
| Sinclair ZX Spectrum cass. | O' Level - CSE Chemistry | 1982 | Calpac Computer |
| Sinclair ZX Spectrum cass. | O'Level Biology | 1984 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level Chemistry | 1985 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level Computer Science | 1984 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level Electronics | 1985 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level French | 1984 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level Maths | 1983 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | O'Level Physics | 1984 | GCE Tutoring |
| Sinclair ZX Spectrum cass. | Office Master | 1986 | Gemini Marketing, Ltd. |
| Sinclair ZX Spectrum cass. | Oliver's Music Box | 1986 | Cosmic Pop |
| Sinclair ZX Spectrum cass. | Omnicalc 2 Expansion Tape | 1985 | Microsphere Computer Services, Ltd. |
| Sinclair ZX Spectrum cass. | Omnicopy 2 | 1985 | Omni Soft. |
| Sinclair ZX Spectrum cass. | Op-Amp | 1984 | SciCAL Soft. |
| Sinclair ZX Spectrum cass. | Operation Alignment | 1986 | Global Soft. UK |
| Sinclair ZX Spectrum cass. | Operation Caretaker | 1985 | Global Soft. UK |
| Sinclair ZX Spectrum cass. | Organ Master | 1986 | Currys |
| Sinclair ZX Spectrum cass. | Orgãos Reprodutores | 1987 | Astor Soft. Portugal |
| Sinclair ZX Spectrum cass. | Ortografia 1 | 198? | Polmer |
| Sinclair ZX Spectrum cass. | Over The Spectrum Cassette 1 | 1983 | Melbourne House UK 015901 |
| Sinclair ZX Spectrum cass. | PACO - Programa de Adiestramiento con Ordenador | 1984 | Investronica Spain |
| Sinclair ZX Spectrum cass. | Paint Plus | 1985 | Print'n'Plotter Products |
| Sinclair ZX Spectrum cass. | Paint-Demo | 198? | Profisoft Germany |
| Sinclair ZX Spectrum cass. | Paintbox | 1983 | Print'n'Plotter Products |
| Sinclair ZX Spectrum cass. | Pan-Galactic Cocktail Mixer | 1995 | Gaff, Brian |
| Sinclair ZX Spectrum cass. | Pascal's Triangle | 1983 | Chalksoft Ltd. |
| Sinclair ZX Spectrum cass. | Payroll | 1983 | Hilderbay |
| Sinclair ZX Spectrum cass. | PCB Designer | 1984 | Kemsoft |
| Sinclair ZX Spectrum cass. | PD Tape 01 - Spectrum Comms | 1990 | BG Services |
| Sinclair ZX Spectrum cass. | Personal Banking System | 198? | Micromega |
| Sinclair ZX Spectrum cass. | Personal Banking System | 1982 | Hilton Computer Services |
| Sinclair ZX Spectrum cass. | PFN Editor | 1992 | Rowland, Garry |
| Sinclair ZX Spectrum cass. | Phantasmagraphics | 1982 | Saxon Computing |
| Sinclair ZX Spectrum cass. | Photo Finish | 1984 | LJK |
| Sinclair ZX Spectrum cass. | Physics | 1985 | Letts & Co., Charles |
| Sinclair ZX Spectrum cass. | Physics | 1985 | Collins Educational, Ltd. UK |
| Sinclair ZX Spectrum cass. | Physics | 1985 | Penguin Study Soft. |
| Sinclair ZX Spectrum cass. | Physics 'A' Level | 1983 | Calisto |
| Sinclair ZX Spectrum cass. | Physics O-A Level | 198? | Paxman Promotions |
