| Mikkorama | Developer | |
| Miklo | Developer | |
| Miko Sramek | Developer | |
| MikoDaVinz | Developer | |
| Mikoishi | Developer | |
| Mikonow | Developer | |
| Mikro-Gen | Publisher | |
| MikyAnimates | Developer | |
| Mil Feirn | Developer | |
| Milamber | Developer | |
| Milania22 | Developer | |
| Milbus | DeveloperPublisher | |
| Mild Beast Games | Developer | |
| MildSession | Developer | |
| Mildegard | Developer | |
| Mile 300 Computer Services | Publisher | |
| MileStone | Publisher | |
| MileStone Inc. | DeveloperPublisher | |
| MilekHippy | Developer | |
| Miles | Developer | |
| Miles Computing | DeveloperPublisher | |
| Miles Matrix (formerly known as m3g1dd0) | Developer | |
| Miles Mouse | Developer | |
| Miles Wind | Developer | |
| Milestone | DeveloperPublisher | |
| Milestone Inc. | DeveloperPublisher | |
| Milestone Interactive | Developer | |
| Milestone S.r.l | Developer | |
| Milestone s.r.l | Developer | |
| Milestone s.r.l. | DeveloperPublisher | |
| Milestone srl | DeveloperPublisher | |
| Military Simulations Inc. | DeveloperPublisher | |
| Milk Soft | DeveloperPublisher | |
| MilkBoy | Developer | |
| MilkGallery | Developer | |
| MilkTeaStudios | Developer | |
| Milkbag Games | DeveloperPublisher | |
| Milkbar Lads | Developer | |
| Milkcha | Developer | |
| Milkstone Studios | DeveloperPublisher | |
| Milkteebaby | Developer | |
| Milky Cherry | Developer | |
| Milky Tea Studio | Developer | |
| Milky Tea Studios | DeveloperPublisher | |
| Milky Team | Developer | |
| Millenium Interactive | Publisher | |
| Millennial Games | Developer | |
| Millennium Interactive | DeveloperPublisher | |
| Millennium Interactive Ltd. | DeveloperPublisher | |
| Millennium Kitchen | Developer | |