| Matheus Tambosi | Developer | |
| Matheus Vicente | Developer | |
| MatheusCunegato | Developer | |
| MatheusMortatti | Developer | |
| MathewHD | Developer | |
| MathiO | Developer | |
| Mathias Feist | Developer | |
| Mathias Ody | Developer | |
| Mathieu GD | Developer | |
| Mathilda | Publisher | |
| Mathoslink | Developer | |
| Mathurin | Developer | |
| Matias Beckerle | Developer | |
| Matias Brunacci | Developer | |
| Matias Milewski | Developer | |
| MatiasDesu | Developer | |
| Matiasmcxd | Developer | |
| Matija Masek | Developer | |
| Matija Obrovac | Developer | |
| Matija Šikić | Developer | |
| Matilar | Developer | |
| MatildaSouthby | Developer | |
| Matin | Developer | |
| Matlahvi | Developer | |
| Matodan | Developer | |
| Matomatt | Developer | |
| Matote | Developer | |
| Matra Game Studio | Developer | |
| Matra Hachette | Developer | |
| Matris-Defectum | Developer | |
| Matrix | DeveloperPublisher | |
| Matrix Developments | Developer | |
| Matrix Games | DeveloperPublisher | |
| Matrix Software | Developer | |
| Mats | Developer | |
| Matsushita Electric Industrial | Developer | |
| Matsuuu | Developer | |
| Matt | Developer | |
| Matt Game Dad Dyet | Developer | |
| Matt Kupo Roszak | Developer | |
| Matt Beckett | Developer | |
| Matt Boyd-Surka | Developer | |
| Matt Boyer | Developer | |
| Matt Crees | Developer | |
| Matt Dabrowski | Developer | |
| Matt Daly | Developer | |
| Matt Donatelli | Developer | |
| Matt Dugan | Developer | |
| Matt Eland | Developer | |
| Matt Ellis | Developer | |
| Matt Fabius | Developer | |
| Matt Furniss | Developer | |
| Matt Glanville | Developer | |
| Matt Lieutier | Developer | |
| Matt Makes Games | DeveloperPublisher | |
| Matt McGill | Developer | |
| Matt Murch | Developer | |
| Matt O'Tousa | Developer | |
| Matt Patrick Walsh | Developer | |
| Matt Reeves | Developer | |
| Matt Rix | Developer | |
| Matt Thorson | Developer | |
| Matt Westcott[5] | Developer | |
| Matt Young | Developer | |
| Matt's Games | Developer | |
| Matt's Mouth | Developer | |
| MattBolere | Developer | |
| MattCarr | Developer | |
| MattDew | Developer | |
| MattFett | Developer | |
| MattFrith | Developer | |
| MattLeo | Developer | |
| MattMacob | Developer | |
| MattReardon | Developer | |
| MattWay | Developer | |
| MattWillis | Developer | |
| MattWoelk | Developer | |
| Mattabulous | Developer | |
| Mattchu Does Stuff | Developer | |
| Mattel | DeveloperPublisher | |
| Mattel Electronics | DeveloperPublisher | |
| Mattel Electronics Teletape Inc. | Developer | |
| Mattel Electronics Teletape Inc. APh Technological Consulting | Developer | |
| Mattel Games | Publisher | |
| Mattel Interactive | Publisher | |
| Mattel Media | DeveloperPublisher | |
| Matteo Moriani | Developer | |
| Matteo Vera | Developer | |
| Mattfox | Developer | |
| Matth33w | Developer | |
| Matthais Gerhardt | Developer | |
| Matthew | Developer | |
| Matthew Ager | Developer | |
| Matthew Alexander | Developer | |
| Matthew Cannon | Developer | |
| Matthew Codes | Developer | |
| Matthew Drakely | Developer | |
| Matthew Flewelling | Developer | |
| Matthew Gallant | Developer | |
| Matthew Garcia -2 | Developer | |