Companies
- Maxis
- MDHR
- Media Molecule
- Mediatonic
- MegaCat Studios
- Melbourne House
- Mercury Steam Entertainment
- Merge Games
- Meridian4
- Messhof
- Meta
- Metalhead Software
- Metanet Software
- Microbird
- Microids
- Microsoft
- Microsoft Studios
- MidBoss
- Midway
- MiHoYo Limited
- Milestone
- Mimimi Games
- Mindscape
- Miniclip
- Minimum Studios