| Meditator | Developer | |
| MedwidStudio | Developer | |
| Medza | Developer | |
| Meemog | Developer | |
| Meep | Developer | |
| MeepLeDoodle | Developer | |
| Mega Bite | Developer | |
| Mega Cat Studios | Developer | |
| Mega Dwarf Inc. | Developer | |
| Mega Enterprise | DeveloperPublisher | |
| Mega Man Maker Team | DeveloperPublisher | |
| Mega Power Games | Developer | |
| Mega Studios | Developer | |
| Mega Zeal Studio | Developer | |
| Mega-micro Computers (Art Canfil) | Developer | |
| Mega145 | Developer | |
| MegaBoss | Developer | |
| MegaCookie | Developer | |
| MegaCrit | Developer | |
| MegaFanZach | Developer | |
| MegaManfan334 | Developer | |
| MegaMax | Developer | |
| MegaPixel Studio | Developer | |
| MegaPixel Studios | Developer | |
| MegaProgramGuy | Developer | |
| MegaSaberEXE | Developer | |
| MegaSloth | Developer | |
| MegaSoft | Publisher | |
| MegaSoft Entertainment | Developer | |
| MegaXis | Developer | |
| Megableu | DeveloperPublisher | |
| Megabyte Media | Developer | |
| MegacomGames | Developer | |
| MegacrashREX | Developer | |
| Megacyber | DeveloperPublisher | |
| Megadodo Software | Publisher | |
| Megadream Software | Developer | |
| Megafuzz | DeveloperPublisher | |
| Megagon | Developer | |
| Megagon Industries | Developer | |
| Megahouse | DeveloperPublisher | |
| Megalodon | Developer | |
| Megalodon Corps | Developer | |
| Megami | DeveloperPublisher | |
| Megamon | Developer | |
| Megan | Developer | |
| Megan Carnes | Developer | |
| Megan Condis | Developer | |
| Megasoft | Developer | |
| Megasteakman | Developer | |