| 29069 | Mayday | ZX81 16K | English |
| 31948 | Mayhem | ZX81 16K | English |
| 28622 | Maze | ZX81 16K | English |
| 39640 | Maze | ZX81 16K | English |
| 34531 | Maze Craze | ZX81 16K | English |
| 39714 | Maze Creator | ZX81 16K | English |
| 31720 | Maze Death Race | ZX81 16K | - |
| 37572 | Maze Monsters | ZX81 16K | English |
| 29072 | Maze [3] | ZX81 16K | English |
| 41084 | Maze of Worry | ZX81 16K | English |
| 29073 | Mazeman | ZX81 16K | English |
| 29074 | Mazogs | ZX81 16K | English |
| 33429 | Mazogs - Chroma Edition | ZX81 16K | - |
| 32035 | Mazogs - Chroma Extension | ZX81 16K | English |
| 40098 | Measure | ZX81 16K | English |
| 29082 | Meditor | ZX81 16K | German |
| 29081 | Meditor Demo | ZX81 16K | German |
| 29080 | Meditor Kalkulation | ZX81 16K | - |
| 35667 | Mega Christmas Cracker Simulator | ZX81 16K | English |
| 31721 | Megamind | ZX81 16K | - |