| title | developer | year | platform | | pop. |
|---|
| KKnD2: Krossfire | Beam Software | 1998 | Windows | strategy Science Fiction | image | | label | |
| Last Man Standing | author | ? | Linux | shooter | | | label | |
| Linux SVGALIB Doom | id Software | 1994 | Linux | Horror | | subject | label | |
| Linux X Doom | id Software | 1994 | Linux | Horror | | subject | label | |
| LV-426 | Derbian Games | 2007 | Windows | shooting gallery Horror | image | | label | |
| LxDoom | author | 1998 | Linux | shooter | | | label | |
| MacDoom | id Software | 1995 | Mac OS Classic | Horror | | subject | label | |
| Mach Rider | Nintendo | 1985 | NES | racing/driving Science Fiction | image | subject | label | |
| Maia | Mode 7 Games | 2018 | Linux | simulation strategy Science Fiction | image | | label | |
| Maia | Mode 7 Games | 2018 | Windows | simulation Science Fiction | | | label | |
| Mass Effect | BioWare | 2007 | X360 | action/reflex role-play Science Fiction | image | | label | |
| Mass Effect | BioWare;Demiurge Studios | 2008 | Windows | action/reflex role-play Science Fiction | image | subject | label | |
| Mass Effect 2 | BioWare Edmonton;EA Montreal | 2010 | X360 | action/reflex role-play Science Fiction | image | subject | label | |
| Mass Effect 2 | BioWare;EA Montreal | 2010 | Windows | action/reflex shooter role-play Science Fiction | image | subject | label | |
| Mass Effect 2 | BioWare Edmonton;EA Montreal | 2011 | PS3 | action/reflex role-play Science Fiction | image | | label | |
| Mass Effect Galaxy | BioWare | 2009 | iOS | action/reflex role-play Science Fiction | image | | label | |
| McDoe!: Madame Ching's Dungeon of Ecstasy | BSX International | 1989 | MS-DOS | action/reflex maze Humorous | image | | label | |
| McPop!: Madam Ching's Palace of Pleasure | BSX International | 1989 | MS-DOS | action/reflex maze Humorous | image | | label | |
| Mega Man X | Capcom | 1993 | SNES | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X | Capcom | 2016 | 3DS | platformer shooter Science Fiction | | | label | |
| Mega Man X: Command Mission | Capcom Production Studio 3 | 2004 | GameCube | turn-based | image | | label | |
| Mega Man X: Command Mission | Capcom Production Studio 3 | 2004 | PS2 | turn-based | image | subject | label | |
| Mega Man X2 | Capcom | 1994 | SNES | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X2 | Capcom | 2016 | 3DS | platformer shooter Science Fiction | | | label | |
| Mega Man X3 | Capcom | 1995 | SNES | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X3 | Capcom | 1996 | PS | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X3 | Capcom | 1996 | Saturn | platformer shooter Science Fiction | image | | label | |
| Mega Man X4 | Capcom | 1997 | Saturn | platformer shooter Science Fiction | image | | label | |
| Mega Man X4 | Capcom | 1997 | PS | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X4 | Capcom | 1998 | Windows | platformer shooter Science Fiction | image | | label | |
| Mega Man X5 | Capcom Entertainment | 2001 | PS | Science Fiction | image | subject | label | |
| Mega Man X6 | Capcom Entertainment | 2001 | PS | platformer shooter Science Fiction | image | subject | label | |
| Mega Man X8 | Capcom Production Studio 1 | 2005 | Windows | platformer shooter Manga | image | | label | |
| Miracle Ropit's Adventure in 2100 | Micronics | 1987 | NES | platformer Manga | image | | label | |
| Mission Critical | Legend Entertainment | 1994 | MS-DOS | adventure Science Fiction | image | | label | |
| NeXTDOOM | id Software | 1994 | NeXT | Horror | | subject | label | |
| Nexus – The Jupiter Incident | Mithis Entertainment | 2004 | Windows | strategy Science Fiction | image | subject | label | |
| Noitu Love and the Army of Grinning Darns | author | 2006 | Windows | beat 'em up platformer Cartoon | image | | label | |
| Nuts & Scrap | DevilishGames | 2003 | Linux | action/reflex adventure Science Fiction | | | label | |
| Nuts & Scrap | DevilishGames | ? | BeOS | action/reflex adventure Science Fiction | | | label | |
| Operation: Sabotage | SoftSide | 1982 | Apple II E | adventure Science Fiction | image | | label | |
| Operation: Sabotage | Softside | 1982 | Atari 400/800 | adventure Science Fiction | image | | label | |
| Operation: Sabotage | Softside | 1982 | MS-DOS | adventure Science Fiction | | | label | |
| Operation: Sabotage | SoftSide | 1982 | TRS-80 | adventure Science Fiction | image | | label | |
| Orbital Eunuchs Sniper | icculus.org | 2008 | Linux | shooter Science Fiction | image | subject | label | |
| Orbital Eunuchs Sniper | ? | ? | BeOS | shooter Science Fiction | | | label | |
| Orbital Eunuchs Sniper | icculus.org | 2008 | BSD | shooter Science Fiction | | | label | |
| Orxonox | author | 2004 | Linux | shooter Science Fiction | | subject | label | |
| OverBlood 2 | Riverhill Soft | 1998 | PS | action/reflex adventure Horror | image | | label | |
