| Sinclair ZX Spectrum cass. |  Locodriver 8 | 1988 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Locodriver 9 | 1988 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Locospotter | 1988 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Loogaroo | 1988 | Top Ten Soft. |
| Sinclair ZX Spectrum cass. | Los Pajaros de Bangkok Model SPE 880019 | 1988 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. |  Mad Flunky | 1988 | System 4 de Espana, S.A. Spain |
| Sinclair ZX Spectrum cass. |  Mad Mix Game | 1988 | IBSA Spain |
| Sinclair ZX Spectrum cass. | Mad Mix Game - The Pepsi Challenge | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Mad Mix Game Model SE 409 | 1988 | Topo Soft. Spain |
| Sinclair ZX Spectrum cass. | Madballs | 1988 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Magnetron Model 011187 | 1988 | Firebird Soft. UK 012439 |
| Sinclair ZX Spectrum cass. | Magus | 1988 | D.N.D. Soft. |
| Sinclair ZX Spectrum cass. | Majik Model IS 0277 | 1988 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | Manollo - El Cavernicola Model SCS-1001 | 1988 | Iber Soft. Spain |
| Sinclair ZX Spectrum cass. | Marauder | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Marauder Model 010595 | 1988 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum cass. | Maria's Christmas Box | 1988 | Anco Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Masterwank | 1988 | Crapman |
| Sinclair ZX Spectrum cass. | Mega-Apocalypse Model M80462E | 1988 | Martech Games, Ltd. |
| Sinclair ZX Spectrum cass. | Megachess | 1988 | Iber Soft. Spain |
| Sinclair ZX Spectrum cass. | Meganova | 1988 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Megaplay Vol.1 | 1988 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | Mercenary - The Second City | 1988 | Novagen Soft., Ltd. 013755 |
| Sinclair ZX Spectrum cass. | Metal Army | 1988 | Players Soft. |
| Sinclair ZX Spectrum cass. | Metaplex | 1988 | Addictive Games |
| Sinclair ZX Spectrum cass. | Metro-Cross Model 543405 | 1988 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Metropolis | 1988 | Power House, The UK |
| Sinclair ZX Spectrum cass. | Mickey Mouse - The Computer Game Model 019862 | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | Microball Model AS088 | 1988 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | MicroHobby issue 182: Tape 1 | 1988 | Hobby Press Madrid, Spain |
| Sinclair ZX Spectrum cass. | MicroHobby issue 183: Tape 2 | 1988 | Hobby Press Madrid, Spain |
| Sinclair ZX Spectrum cass. | Mindfighter Model URK 801 | 1988 | Abstract Concepts |
| Sinclair ZX Spectrum cass. | Mini-Putt Model A70262EI | 1988 | Electronic Arts Home Computer Soft. UK 15839 |
| Sinclair ZX Spectrum cass. | Mission Elevator Model 544303 | 1988 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Mission Omega | 1988 | Bug-Byte London, England |
| Sinclair ZX Spectrum cass. | Modern Day Locospotter | 1988 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Motor Massacre Model 021186 | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | Motorbike Madness Model ISA 0264 | 1988 | Mastertronic, Ltd. UK 012967 |
| Sinclair ZX Spectrum cass. | Mr Patrick Tovey's World of Squares | 1988 | Clayton, Carl |
| Sinclair ZX Spectrum cass. | Mr. Wino | 1988 | Silverbird Soft. 012439 |
