| M*A*S*H (1983) | 55,550,617 | 801 |
| M.A.C.H. (2007) | 642,892 | 84 |
| M.A.C.H. 3 (1983) | 431,832 | 113 |
| M.A.R.S. (2021) | 6,598,048 | 1,310 |
| M.A.R.S.S. (2021) | 103,233 | 13 |
| M.A.S.S. Builder (2019) | 3,136,418 | 1,879 |
| M.A.V. (2014) | 6,037,617 | 664 |
| M.C. Kids (1992) | 7,665,215 | 958 |
| M.I.A.: Mission in Asia (2011) | 228,795 | 20 |
| M.O.O.D.S. (2024) | 879,650 | 146 |
| M.U.D. TV (2010) | 61,162 | 51 |
| M.U.L.E. (1983) | 2,870,340 | 250 |
| M.U.L.E. Returns (2013) | 653 | 3 |
| M.U.S.H.A. (1990) | 3,787,165 | 1,206 |
| The M/S Cornelia II Incident (2025) | 319 | 3 |
| The m0rg VS keys (2018) | 25 | 1 |
| M1 Tank Platoon (1989) | 51,900 | 34 |
| M1 Tank Platoon II (1998) | 205,234 | 16 |
| M2AF: Message to all Friends (2011) | 82,925 | 4 |
| M3 - Molesting the Match-3 Market (2007) | 50 | 1 |
| M: Alien Paranoia (2000) | 69,735 | 50 |
| Maabus (1994) | 23,367 | 12 |
| Mabinogi (2004) | 158,265,233 | 47,815 |
| 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) | 119,653 | 389 |
| Mace Griffin: Bounty Hunter (2003) | 608,137 | 686 |
| Mace: The Dark Age (1997) | 2,273,719 | 762 |
| MacGuffin's Curse (2012) | 35,054 | 56 |
| Mach 3 (1987) | 35,836 | 20 |
| Mach Breakers: Numan Athletics 2 (1994) | 940,679 | 112 |
| Mach Rider (1985) | 1,485,560 | 728 |
| Mach Storm (2013) | 86,063 | 72 |
| Mach Wing (2024) | 5,182 | 5 |
| Machi (1998) | 1,216,065 | 1,871 |
| 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) | 6,224,913 | 1,256 |
| Machina Blade (2022) | 9,636 | 29 |
| Machina of the Planet Tree -Unity Unions- (2020) | 124,088 | 193 |
| Machinarium (2009) | 78,769,217 | 9,306 |
| Machinations: Fog of War (2016) | 534 | 1 |
| Machine Armor Zero (2024) | 417 | 3 |
| Machine Gun Fury (2022) | 20,495 | 47 |
| Machine Gun Train Run (2016) | 2,535 | 18 |
| Machine Head (1996) | 342,720 | 185 |
| Machine Hell (2005) | 82 | 2 |
| Machine Hunter (1997) | 137,143 | 140 |
| Machine Knight (2013) | 1,392,764 | 141 |
| MachineCraft (2016) | 239,008 | 95 |
| Machineers (2014) | 8,394 | 11 |
| MachineryWorld (2021) | 0 | 0 |
| The Machines Arena (2021) | 73,544 | 137 |
| Machines at War (2007) | 2,858 | 2 |
| Machines at War 3 (2012) | 168,113 | 56 |
| Machinicide (2025) | 5,993 | 10 |
| Machinika Museum (2021) | 1,265,065 | 1,055 |
| Machinika: Atlas (2024) | 64,489 | 215 |
| Machop at Work (2002) | 601 | 4 |
| Machorium -Muscle Aquarium Simulator (2024) | 127,789 | 14 |
| MacRomeo and Julius (2016) | 134,644 | 4 |
| Macross 30: Voices across the Galaxy (2013) | 2,557,549 | 476 |
| Macross Ace Frontier (2008) | 243,194 | 86 |
| Macross Triangle Frontier (2011) | 353,562 | 213 |
| Macross Ultimate Frontier (2009) | 169,329 | 48 |
| Macross VF-X 2 (2000) | 133,440 | 179 |
| Macross: Eternal Love Song (1992) | 38,682 | 19 |
| Macross: Scrambled Valkyrie (1993) | 349,804 | 290 |
