| Morbid: The Lords of Ire (2024) | 1,606 | 11 |
| Morbid: The Seven Acolytes (2020) | 1,689,661 | 2,143 |
| Mordhau (2019) | 271,840,501 | 29,983 |
| Mordheim: City of the Damned (2015) | 12,406,371 | 11,144 |
| Mordheim: Warband Skirmish (2017) | 79,706 | 86 |
| Mordon's Quest (1985) | 1,385 | 6 |
| Mordor: The Depths of Dejenol (1995) | 38,123 | 226 |
| Morgan lives in a Rocket House in VR (2017) | 18 | 1 |
| The Morgue Fissure Between Worlds (2017) | 43,305 | 15 |
| Mori Carta (2023) | 56,081 | 31 |
| Mori no Fukurou (2003) | 56 | 1 |
| Moria (1988) | 18,228,484 | 6,691 |
| Morita Shogi 64 (1998) | 202,927 | 379 |
| Morkredd (2020) | 486,249 | 539 |
| Morloc's Tower (1979) | 439 | 3 |
| Morningdew Farms: A Gay Farming Game (2019) | 0 | 0 |
| Morningstar: Descent to Deadrock (2015) | 44,693 | 83 |
| MORODASHI SUMO (2022) | 530,541 | 194 |
| Moroi (2022) | 88,200 | 27 |
| The Moron Test (2009) | 19,810,339 | 224 |
| Morph Space (2021) | 1,957 | 2 |
| Morpheus (1987) | 9,220 | 10 |
| Morpheus (1998) | 248,826 | 164 |
| Morphies Law (2018) | 834,945 | 300 |
| Morphite (2017) | 8,440,828 | 1,220 |
| Morphus (2023) | 5,882 | 3 |
| MorphX (2008) | 224,456 | 326 |
| MORSE (2022) | 599,125 | 84 |
| Mort the Chicken (2000) | 1,297,895 | 250 |
| Mort's Dream Jump (2024) | 0 | 0 |
| Mortal Blitz (2017) | 523,810 | 353 |
| Mortal Blitz: Combat Arena (2020) | 156,366 | 138 |
| Mortal Coil: Adrenalin Intelligence (1995) | 10,976 | 18 |
| Mortal Glory (2020) | 610,572 | 224 |
| Mortal Kombat (1992) | 791,360,434 | 83,679 |
| Mortal Kombat 1 (2023) | 1,333,157,741 | 256,626 |
| Mortal Kombat 11 (2019) | 5,484,723,998 | 786,621 |
| Mortal Kombat 3 (1995) | 142,178,190 | 10,403 |
| Mortal Kombat 4 (1997) | 66,392,481 | 8,568 |
| Mortal Kombat 9 (2011) | 2,557,486,051 | 154,502 |
| Mortal Kombat Advance (2001) | 1,620,601 | 263 |
| Mortal Kombat Arcade Kollection (2011) | 5,218,740 | 907 |
| Mortal Kombat Gold (1999) | 10,398,879 | 1,855 |
| Mortal Kombat II (1993) | 121,409,094 | 17,961 |
| Mortal Kombat Kollection (2008) | 132,600 | 96 |
| Mortal Kombat Mobile (2015) | 210,053,816 | 47,652 |
| Mortal Kombat Mythologies: Sub-Zero (1997) | 38,163,342 | 2,433 |
| Mortal Kombat Trilogy (1996) | 78,569,101 | 11,037 |
| Mortal Kombat vs. DC Universe (2008) | 451,137,370 | 8,353 |
| Mortal Kombat X (2015) | 4,919,190,227 | 428,766 |
| Mortal Kombat: Armageddon (2006) | 203,126,966 | 14,916 |
| Mortal Kombat: Deadly Alliance (2002) | 28,498,954 | 5,652 |
| Mortal Kombat: Deception (2004) | 86,894,422 | 9,838 |
| Mortal Kombat: Shaolin Monks (2005) | 173,800,720 | 18,822 |
| Mortal Kombat: Special Forces (2000) | 2,300,926 | 662 |
| Mortal Online (2010) | 3,458,770 | 1,157 |
| Mortal Online 2 (2021) | 10,387,460 | 5,248 |
| Mortal Royale (2018) | 27,510 | 32 |
| Mortal Shell (2020) | 91,842,834 | 42,268 |
| Mortal Skies: Modern War Air Combat Shooter (2011) | 12,050 | 12 |
| Mortalis Meltdown (2024) | 0 | 0 |
| Mortanis Prisoners #1 (2023) | 12,346 | 25 |
| Mortar Mayhem (2001) | 2,403 | 7 |
| Morte Accendere (2023) | 0 | 0 |
| Mortimer and the Enchanted Castle (2005) | 2,733 | 4 |
| Mortimer and the Riddles of the Medallion (1996) | 7,421 | 5 |
| Mortimer Beckett and the Book of Gold (2017) | 116,079 | 154 |
| Mortimer Beckett and the Crimson Thief (2012) | 49,170 | 70 |
| Mortimer Beckett and the Lost King (2010) | 207,768 | 60 |
| Mortimer Beckett and the Secrets of the Spooky Manor (2007) | 103,391 | 87 |
| Mortimer Beckett and the Time Paradox (2008) | 93,865 | 86 |
| The Mortuary Assistant (2022) | 365,820,690 | 33,428 |
| Mortville Manor (1986) | 53,029 | 77 |
| Mortyr (1999) | 2,721,697 | 523 |
| Mortyr II (2005) | 140,899 | 142 |
