| 34537 | Missão Andrômeda | ZX81 16K | Portuguese |
| 39301 | Missão Espacial | ZX-Spectrum 48K | Portuguese |
| 3308 | Mister Gas | ZX-Spectrum 48K | Spanish |
| 42883 | Mister Huevo | ZX-Spectrum 16K | Spanish |
| 30806 | Mit Senf | ZX-Spectrum 48K | German |
| 3356 | Mithos | ZX-Spectrum 48K/128K | Spanish |
| 21870 | Mlynek | ZX-Spectrum 48K | Polish |
| 12962 | Mobile Wars | ZX-Spectrum 128K | Russian |
| 43368 | Mochilo ZX | ZX-Spectrum 48K | English |
| 45019 | Modell-hajó Verseny | ZX-Spectrum 128K | Hungarian |
| 18235 | Modulo Lunar | ZX-Spectrum 48K | Spanish |
| 15106 | Moggy | ZX-Spectrum 48K | - |
| 17845 | Moggy II | ZX-Spectrum 48K | Spanish |
| 17846 | Moggy III | ZX-Spectrum 48K | Spanish |
| 37389 | Mojoni in the Sewer World | ZX-Spectrum 48K/128K | Multi-language: English, Spanish |
| 3241 | Molar Maul | ZX-Spectrum 16K | English |
| 40499 | Mole | ZX81 16K | English |
| 29585 | Mole | ZX81 16K | English |
| 40157 | Mole Attack | ZX81 16K | English |
| 16974 | Mole Attack | ZX-Spectrum 16K | English |