| Sinclair ZX Spectrum cass. |  Murphy Model PSBC 502 | 1988 | Pirate Soft. |
| Sinclair ZX Spectrum cass. | Mushroom Mania | 1988 | Arcadia Soft., Inc. |
| Sinclair ZX Spectrum cass. | Mystery of the Indus Valley Model AS 282 | 1988 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | N.E.I.L. Android Model AS 233 | 1988 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | NATO Assault Course | 1988 | CRL Group PLC London, England |
| Sinclair ZX Spectrum cass. | Navy Moves Model SPE 890027 | 1988 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Netherworld | 1988 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum cass. | Network Exeter | 1988 | Dee-Kay Systems |
| Sinclair ZX Spectrum cass. | Nigel Mansell's Grand Prix | 1988 | Martech Games, Ltd. |
| Sinclair ZX Spectrum cass. | Night Raider | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. |  Ninja Master | 1988 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Ninja Scooter Simulator | 1988 | Silverbird Soft. 012439 |
| Sinclair ZX Spectrum cass. | Norman | 1988 | Power House, The UK |
| Sinclair ZX Spectrum cass. | NorthStar | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. |  NorthStar | 1988 | IBSA Spain |
| Sinclair ZX Spectrum cass. | NorthStar Model 019657 | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | O.K. Yah Model PSAC 107 | 1988 | Pirate Soft. |
| Sinclair ZX Spectrum cass. | On the Bench | 1988 | Cult |
| Sinclair ZX Spectrum cass. | One Dark Night | 1988 | Brunyee, Paul |
| Sinclair ZX Spectrum cass. | Oops | 1988 | Big Apple, The |
| Sinclair ZX Spectrum cass. | Operation Thunderbowel | 1988 | Sacred Scroll Soft. |
| Sinclair ZX Spectrum cass. | Operation Wolf Model 112355 P | 1988 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Out Run | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Overkill Model At 344 | 1988 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. | Overlander | 1988 | Elite Systems, Ltd. |
| Sinclair ZX Spectrum cass. | Overlord - The Invasion 6th June 1944 | 1988 | CCS Cases Computer Simulations, Ltd. London, England |
| Sinclair ZX Spectrum cass. | P.H.M. Pegasus Model E00562 | 1988 | Electronic Arts Home Computer Soft. UK 15839 |
| Sinclair ZX Spectrum cass. | Pac-Mania | 1988 | Grandslam Ent., Ltd. |
| Sinclair ZX Spectrum cass. | Pac-Mania | 1988 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Para Assault Course Model S054 | 1988 | Zeppelin Games |
| Sinclair ZX Spectrum cass. | Paris-Dakar Model PD-005-SPE | 1988 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Pegasus Bridge | 1988 | PSS Personal Soft. Services 012484 |
| Sinclair ZX Spectrum cass. | Peter Beardsley's International Football | 1988 | Grandslam Ent., Ltd. |
| Sinclair ZX Spectrum cass. | Phantom Club Model 012082 | 1988 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | PHART | 1988 | Creative Juices |
| Sinclair ZX Spectrum cass. | Piggy | 1988 | Bug-Byte London, England |
| Sinclair ZX Spectrum cass. | Pink Panther | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | Pink Panther | 1988 | Dro Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Platoon | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Platoon Model 011641 | 1988 | Ocean Soft., Ltd. 13156 |
