| M*A*S*H (1983) | 54,854,977 | 777 |
| M.A.C.H. (2007) | 641,937 | 83 |
| M.A.C.H. 3 (1983) | 431,669 | 111 |
| M.A.R.S. (2021) | 6,122,852 | 1,262 |
| M.A.R.S.S. (2021) | 103,233 | 13 |
| M.A.S.S. Builder (2019) | 3,078,696 | 1,842 |
| M.A.V. (2014) | 5,998,112 | 650 |
| M.C. Kids (1992) | 7,663,772 | 925 |
| M.I.A.: Mission in Asia (2011) | 228,795 | 20 |
| M.O.O.D.S. (2024) | 878,466 | 142 |
| M.U.D. TV (2010) | 61,130 | 51 |
| M.U.L.E. (1983) | 2,866,199 | 242 |
| M.U.L.E. Returns (2013) | 3 | 3 |
| M.U.S.H.A. (1990) | 3,747,657 | 1,181 |
| The M/S Cornelia II Incident (2025) | 319 | 3 |
| The m0rg VS keys (2018) | 25 | 1 |
| M1 Tank Platoon (1989) | 51,881 | 28 |
| M1 Tank Platoon II (1998) | 205,107 | 16 |
| M2AF: Message to all Friends (2011) | 82,925 | 4 |
| M3 - Molesting the Match-3 Market (2007) | 50 | 1 |
| M: Alien Paranoia (2000) | 69,628 | 49 |
| Maabus (1994) | 23,367 | 12 |
| Mabinogi (2004) | 148,580,122 | 45,861 |
| maboroshi caravan (2023) | 58 | 1 |
| MaBoShi: The Three Shape Arcade (2008) | 26,897 | 23 |
| Mac Biskwi Adventures (2022) | 2,188 | 30 |
| Macabre Mysteries: Curse of the Nightingale (2011) | 130,004 | 77 |
| Macadam Bumper (1985) | 10,983 | 21 |
| MacArthur's War: Battles for Korea (1988) | 998 | 4 |
| Macau Midnight Madness (2024) | 2 | 2 |
| Macbat 64 (2017) | 106,707 | 370 |
| Mace Griffin: Bounty Hunter (2003) | 607,676 | 682 |
| Mace: The Dark Age (1997) | 2,266,971 | 752 |
| MacGuffin's Curse (2012) | 35,054 | 56 |
| Mach 3 (1987) | 35,815 | 20 |
| Mach Breakers: Numan Athletics 2 (1994) | 939,888 | 111 |
| Mach Rider (1985) | 1,469,638 | 701 |
| Mach Storm (2013) | 84,543 | 70 |
| Mach Wing (2024) | 5,182 | 5 |
| Machi (1998) | 1,199,742 | 1,858 |
| Machi Knights: Blood Bagos (2018) | 94,900 | 102 |
| MACHI KORO With Everyone (2024) | 20,069 | 14 |
| Machi: Above the Void (2023) | 124 | 2 |
| Machiavelli the Prince (1995) | 11,945 | 21 |
| MachiaVillain (2018) | 6,214,773 | 1,253 |
| Machina Blade (2022) | 9,632 | 29 |
| Machina of the Planet Tree -Unity Unions- (2020) | 124,089 | 192 |
| Machinarium (2009) | 78,490,273 | 8,878 |
| Machinations: Fog of War (2016) | 534 | 1 |
| Machine Armor Zero (2024) | 417 | 3 |
| Machine Gun Fury (2022) | 19,606 | 46 |
| Machine Gun Train Run (2016) | 2,535 | 18 |
| Machine Head (1996) | 342,494 | 184 |
| Machine Hell (2005) | 35 | 1 |
| Machine Hunter (1997) | 137,119 | 139 |
| Machine Knight (2013) | 1,392,764 | 141 |
| MachineCraft (2016) | 238,995 | 94 |
| Machineers (2014) | 8,394 | 11 |
| MachineryWorld (2021) | 0 | 0 |
| The Machines Arena (2021) | 73,527 | 137 |
| Machines at War (2007) | 2,858 | 2 |
| Machines at War 3 (2012) | 168,113 | 56 |
| Machinicide (2025) | 5,993 | 10 |
| Machinika Museum (2021) | 1,263,247 | 1,003 |
| Machinika: Atlas (2024) | 62,364 | 200 |
| Machop at Work (2002) | 585 | 4 |
| Machorium -Muscle Aquarium Simulator (2024) | 127,671 | 12 |
| MacRomeo and Julius (2016) | 134,644 | 4 |
| Macross 30: Voices across the Galaxy (2013) | 2,553,766 | 463 |
| Macross Ace Frontier (2008) | 240,703 | 78 |
| Macross Triangle Frontier (2011) | 351,834 | 205 |
| Macross Ultimate Frontier (2009) | 168,627 | 46 |
| Macross VF-X 2 (2000) | 130,075 | 164 |
| Macross: Eternal Love Song (1992) | 38,624 | 18 |
| Macross: Scrambled Valkyrie (1993) | 345,745 | 281 |
