| title | developer | year | platform | | pop. |
|---|
| Machinarium | Amanita Design | 2009 | Linux | adventure puzzle | image | subject | label | |
| Magic Carpet | Bullfrog | 1994 | MS-DOS | flight Fantasy | image | | label | |
| Magic Carpet 2: The Netherworlds | Bullfrog | 1995 | MS-DOS | flight Fantasy | image | | label | |
| Magrunner: Dark Pulse | 3am Games | 2013 | Windows | action/reflex puzzle Science Fiction | image | | label | |
| Maize | Finish Line Games | 2016 | Windows | adventure Fantasy | | | label | |
| Man O' War: Corsair | Evil Twin Artworks | 2016 | Linux | action/reflex adventure | | | label | |
| Man O' War: Corsair - Warhammer Naval Battles | Evil Twin Artworks | 2016 | Linux | action/reflex adventure | | | label | |
| Mark of the Ninja | Klei Entertainment | 2013 | Linux | action/reflex | | | label | |
| Mark of the Ninja: Remastered | Klei Entertainment | 2018 | Linux | action/reflex | | | label | |
| Massive Chalice | Double Fine Productions | 2015 | Linux | strategy role-play Fantasy | | | label | |
| Massive Chalice | Double Fine Productions | 2015 | Windows | strategy role-play Fantasy | image | | label | |
| Massive Chalice | Double Fine Productions | 2015 | Mac OS X | strategy role-play Fantasy | | | label | |
| Master of Magic | SimTex | 1994 | MS-DOS | strategy turn-based Fantasy | image | | label | |
| Master of Magic | SimTex | 2015 | Linux | strategy turn-based Fantasy | | | label | |
| Master of Orion | NGD Studios | 2016 | Windows | strategy Science Fiction | | | label | |
| Master of Orion | NGD Studios | 2016 | Mac OS X | strategy Science Fiction | | | label | |
| Master of Orion | NGD Studios | 2016 | Linux | strategy turn-based Science Fiction | | | label | |
| Master of Orion | SimTex | 1993 | MS-DOS | manag./econ. strategy turn-based Science Fiction | image | | label | |
| Master of Orion | SimTex | 2015 | Linux | manag./econ. strategy turn-based Science Fiction | | | label | |
| Master of Orion II: Battle at Antares | Simtex | 1996 | Windows | manag./econ. strategy turn-based Science Fiction | image | | label | |
| Master of Orion II: Battle at Antares | Simtex | 2015 | Linux | manag./econ. strategy turn-based Science Fiction | | | label | |
| Mean Streets | Access Software | 1989 | MS-DOS | adventure Science Fiction | image | | label | |
| Megabyte Punch | Reptile | 2013 | Linux | platformer | | | label | |
| Megamagic: Wizards of the Neon Age | BeautiFun Games | 2016 | Linux | action/reflex role-play Fantasy | | | label | |
| Memoranda | Bit Byterz | 2017 | Linux | | | | label | |
| Memoria | Daedalic Entertainment | 2013 | Windows | adventure Fantasy | image | | label | |
| Menzoberranzan | Dreamforge Intertainment | 1994 | MS-DOS | role-play Fantasy | image | | label | |
| Menzoberranzan | Dreamforge Intertainment | 2015 | Linux | role-play Fantasy | | | label | |
| Messiah | Shiny Entertainment | 1999 | Windows | action/reflex Fantasy | image | | label | |
| Miasmata | IonFX Studios | 2012 | Windows | action/reflex adventure Horror | image | subject | label | |
| MiG-29 | Retroism | 2015 | Linux | simulation flight | | | label | |
| Might and Magic VI: The Mandate of Heaven | New World Computing | 1998 | Windows | action/reflex role-play Fantasy | image | | label | |
| Might and Magic VII: For Blood and Honor | New World Computing | 1999 | Windows | role-play Fantasy | image | | label | |
| Might and Magic VIII: Day of The Destroyer | New World Computing | 2000 | Windows | role-play Fantasy | image | subject | label | |
| MIND: Path to Thalamus | author | 2016 | Linux | adventure Fantasy | | | label | |
| Mini Metro | Dinosaur Polo Club | 2014 | Linux | strategy | | | label | |
| Mob Rule | Studio 3 | 1999 | Windows | strategy Cartoon | | | label | |
| Moebius: Empire Rising | Pinkerton Road | 2016 | Linux | adventure | | | label | |
| Montague's Mount - Episode 1 | PolyPusher Studios | 2013 | Linux | adventure Horror | image | | label | |
| Moon Hunters | Kitfox Games | 2016 | Windows | role-play Fantasy | image | subject | label | |
| Moon Hunters | Kitfox Games | 2016 | Linux | action/reflex adventure role-play Fantasy | | | label | |
| Mother Russia Bleeds | Le Cartel | 2016 | Linux | beat 'em up | | | label | |
| Mount & Blade: Warband - Napoleonic Wars | TaleWorlds Entertainment | ? | Linux | action/reflex manag./econ. strategy role-play | | | label | |
| Mount & Blade: Warband - Viking Conquest | TaleWorlds Entertainment | ? | Linux | action/reflex manag./econ. strategy role-play | | | label | |
| Mount & Blade: Warband | TaleWorlds Entertainment | 2014 | Linux | action/reflex manag./econ. strategy role-play | | | label | |
| MouseCraft | Crunching Koalas | 2014 | Linux | puzzle | image | subject | label | |
| Multiwinia: Survival of the Flattest | Introversion Software | 2011 | Linux | strategy | | | label | |
| Mushroom 11 | Untame | 2015 | Mac OS X | action/reflex puzzle Science Fiction | | | label | |
| Mushroom 11 | Untame | 2015 | Windows | action/reflex puzzle Science Fiction | image | subject | label | |
| Mushroom 11 | Untame | 2015 | Linux | action/reflex puzzle Science Fiction | | | label | |
| Mutant Year Zero: Road to Eden | The Bearded Ladies | 2018 | Windows | strategy Science Fiction | image | | label | |
| Myst | Cyan Worlds;Red Orb Entertainment | 1995 | Windows | adventure Fantasy | image | | label | |
| Myst V: End of Ages | Ubisoft | 2005 | Windows | adventure 3D | image | | label | |
