| Title | Year | Genre |
|---|---|---|
| M-Maze | ???? | Arcade |
| Mad Bomber, The | ???? | Shooter |
| Master Mind | ???? | Puzzle |
| Mastermind | ???? | Puzzle |
| Match | ???? | Puzzle |
| Matches | ???? | Puzzle |
| Maxit | ???? | Puzzle |
| Mazer | ???? | Puzzle |
| Meteor | ???? | Arcade |
| Meteorites | ???? | Shooter |
| MicroChess 2.0 | 1978 | Chess |
| Microjump | ???? | Arcade |
| Millipede | ???? | Shooter |
| Mind | ???? | Puzzle |
| Miner! | 1980 | Arcade |
| Miser | ???? | Adventure |
| Mission 2001 | ???? | Arcade |
| Mount St. Helens | ???? | Management |
| Mousemaze | ???? | Puzzle |
| Mugwump | ???? | Arcade |