| Maxim Loboda | Developer | |
| Maxima | DeveloperPublisher | |
| Maxime Chaize | Developer | |
| Maxime Monast | Developer | |
| Maxime Piquot | Developer | |
| Maximiliano Garcia | Developer | |
| Maximum Crash | Developer | |
| Maximum Family Games | Publisher | |
| Maximum Games | DeveloperPublisher | |
| Maxine Red | Developer | |
| Maxis | DeveloperPublisher | |
| MaxisNA | Publisher | |
| Maxistentialism | Publisher | |
| Maxkiki | Developer | |
| Maxmagix | Developer | |
| Maxoun456 | Developer | |
| Maxtopia | Developer | |
| Maxussss | Developer | |
| Maxwell Technology (David Jones, Nick D'Mahe, Matt Black) | Developer | |
| Maxwell Umeshinon | Developer | |
| MaxwellSalmon | Developer | |
| May Barros | Developer | |
| May Gardens | Developer | |
| May-Be Soft | DeveloperPublisher | |
| MayBeTall | Developer | |
| MayTea Games | Developer | |
| Maya | Developer | |
| Maya Bloem | Developer | |
| Maya Games | Developer | |
| MayaMint | Developer | |
| Maybe Great | Developer | |
| Maybe Soft | DeveloperPublisher | |
| MayerBryan | Developer | |
| Mayfly Studio | Developer | |
| Mayhem Makers | Developer | |
| MayhemmGameDev | Developer | |
| Maynemotions Studios | Developer | |
| Mayo | Developer | |
| MayoMods | Developer | |
| Maytch | Developer | |
| Mayur Games | Developer | |
| Maz | Developer | |
| Maz H Spork | Developer | |
| Maze Theory | Developer | |
| Mazena | Developer | |
| Mazenneyous | Developer | |
| MazzutakGame | Developer | |
| Maëlys Jusseaux | Developer | |
| Maître Pantoufle | Developer | |
| Maÿllis | Developer | |