| Sinclair ZX Spectrum cass. |  No Limits | 1990 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. |  Norman's Lament | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum cass. | Oberon 69 Model SPC 000043 | 1990 | GLL Soft. Spain |
| Sinclair ZX Spectrum cass. | One of our Wombats is Missing | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum cass. | Operation Hanoi | 1990 | Players Premier |
| Sinclair ZX Spectrum cass. | Orfeus | 1990 | Proxima Soft. Czech Republic |
| Sinclair ZX Spectrum cass. | Oriental Games Model 220019 | 1990 | Micro Style |
| Sinclair ZX Spectrum cass. | Out Run Model 550540 P | 1990 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Outlaw | 1990 | Players Premier |
| Sinclair ZX Spectrum cass. | P-47 Thunderbolt | 1990 | Firebird Soft. UK 017096 |
| Sinclair ZX Spectrum cass. |  P-47 Thunderbolt | 1990 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Pang | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Pang | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Para Academy | 1990 | Zeppelin Games |
| Sinclair ZX Spectrum cass. | Penalty Soccer | 1990 | Gamebusters |
| Sinclair ZX Spectrum cass. | Pipe Mania | 1990 | Empire Soft. |
| Sinclair ZX Spectrum cass. | Pipe Mania | 1990 | Proein Soft Line Spain |
| Sinclair ZX Spectrum cass. | Pipe Mania Model 901061 | 1990 | Touch Down! 017783 |
| Sinclair ZX Spectrum cass. | Plotting Model 015199 | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Poli Diaz Boxeo Model SE 1029 | 1990 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Poseidon - Planet Eleven Model HT 034 | 1990 | Hi-Tec Soft. |
| Sinclair ZX Spectrum cass. | Power Magic | 1990 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Prince Clumsy Model 2209 | 1990 | Cartoon Time |
| Sinclair ZX Spectrum cass. | Prison Blues + Magicians Apprentice | 1990 | Guild, The |
| Sinclair ZX Spectrum cass. | Prison Riot | 1990 | Players Premier |
| Sinclair ZX Spectrum cass. | Pro Golf Simulator Model 2300 | 1990 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | Pro Tennis Simulator Model 2239 | 1990 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | Pro Tennis Tour | 1990 | UBI Soft Creteil, France 307211 |
| Sinclair ZX Spectrum cass. | Professional Go-Kart Simulator | 1990 | Zeppelin Games |
| Sinclair ZX Spectrum cass. | Project Stealth Fighter | 1990 | MicroProse, Ltd. Bristol, UK 015352 |
| Sinclair ZX Spectrum cass. | Psycho Hopper | 1990 | Mastertronic Plus UK 012967 |
| Sinclair ZX Spectrum cass. | Pub Trivia Model 2204 | 1990 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | Puzzled! | 1990 | Guild, The |
| Sinclair ZX Spectrum cass. | Puzznic Model 015724 P | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Quarterback | 1990 | Virgin Games, Ltd. UK 013715 |
| Sinclair ZX Spectrum cass. | R.A.M. Model SE 571 | 1990 | Topo Soft. Spain |
| Sinclair ZX Spectrum cass. | Rad Ramp Racer | 1990 | Mastertronic Plus UK 012967 |
| Sinclair ZX Spectrum cass. | Rainbow Islands Model 014215 P | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Rainbow Islands Model SE 580 P | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Rally Cross | 1990 | System 4 de Espana, S.A. Spain |
