| Moose Miners (2024) | 0 | 0 |
| The Mooseman (2017) | 1,062,077 | 928 |
| Mop of the Dead (2023) | 23,509 | 39 |
| MOP Operation Cleanup (2016) | 2,339 | 14 |
| Mop Skater (2025) | 5,264 | 4 |
| Mope.io (2016) | 265,792,416 | 4,739 |
| Moraff's Blast I (1991) | 170 | 2 |
| Moraff's Revenge (1988) | 6,714 | 10 |
| Morbid Inhale (2024) | 1,416 | 6 |
| Morbid: The Lords of Ire (2024) | 535,801 | 1,059 |
| Morbid: The Seven Acolytes (2020) | 1,394,971 | 2,244 |
| Mordhau (2019) | 261,621,939 | 30,085 |
| Mordheim: City of the Damned (2015) | 13,223,602 | 12,161 |
| Mordheim: Warband Skirmish (2017) | 80,457 | 85 |
| Mordon's Quest (1985) | 1,385 | 6 |
| Mordor: The Depths of Dejenol (1995) | 44,033 | 235 |
| Morels: The Hunt 2 (2024) | 27,294 | 115 |
| Morgan lives in a Rocket House in VR (2017) | 18 | 1 |
| Morgan: Metal Detective (2025) | 1,098 | 31 |
| Morgenstern (2025) | 8,777,394 | 131 |
| Morgman (2024) | 0 | 0 |
| The Morgue Fissure Between Worlds (2017) | 0 | 0 |
| Mori Carta (2023) | 61,550 | 35 |
| Mori no Fukurou (2003) | 0 | 0 |
| Moria (1988) | 4,316,174 | 1,133 |
| Morita Shogi 64 (1998) | 200,831 | 328 |
| Morkredd (2020) | 491,429 | 551 |
| Morkull Ragast's Rage (2025) | 85,275 | 301 |
| Morloc's Tower (1979) | 0 | 0 |
| Morningdew Farms: A Gay Farming Game (2019) | 0 | 0 |
| Morningstar: Book of the Fallen (2024) | 16 | 1 |
| Morningstar: Descent to Deadrock (2015) | 0 | 0 |
| Morningtide Motel (2024) | 39 | 1 |
| MORODASHI SUMO (2022) | 657,947 | 227 |
| Moroi (2022) | 266,827 | 125 |
| The Moron Test (2009) | 0 | 0 |
| Moros Protocol (2025) | 21 | 1 |
| Morph Space (2021) | 0 | 0 |
| Morpheus (1987) | 9,220 | 10 |
| Morpheus (1998) | 260,431 | 170 |
| Morphies Law (2018) | 0 | 0 |
| Morphite (2017) | 0 | 0 |
| Morphus (2023) | 5,916 | 4 |
| MorphX (2008) | 212,271 | 349 |
| Morris Cave (2022) | 9 | 2 |
| MORSE (2022) | 529,549 | 93 |
| Mort the Chicken (2000) | 1,209,507 | 297 |
| Mort's Dream Jump (2024) | 73 | 1 |
| Mortal Blitz (2017) | 633,287 | 352 |
| Mortal Blitz: Combat Arena (2020) | 156,243 | 126 |
| Mortal Coil: Adrenalin Intelligence (1995) | 0 | 0 |
| Mortal Glory (2020) | 541,691 | 149 |
| Mortal Glory 2 (2024) | 84,763 | 87 |
| Mortal Kombat (1992) | 560,804,337 | 68,639 |
| Mortal Kombat 1 (2023) | 1,615,882,599 | 368,459 |
| Mortal Kombat 11 (2019) | 5,987,173,761 | 882,555 |
| Mortal Kombat 3 (1995) | 117,753,942 | 11,556 |
| Mortal Kombat 4 (1997) | 55,806,713 | 9,629 |
| Mortal Kombat 9 (2011) | 2,796,499,843 | 159,703 |
| Mortal Kombat Advance (2001) | 1,525,954 | 267 |
| Mortal Kombat Arcade Kollection (2011) | 4,281,916 | 993 |
| Mortal Kombat Gold (1999) | 9,685,440 | 2,300 |
| Mortal Kombat II (1993) | 161,175,966 | 28,570 |
| Mortal Kombat Kollection (2008) | 653,068 | 148 |
| Mortal Kombat Mobile (2015) | 196,441,699 | 48,454 |
| Mortal Kombat Mythologies: Sub-Zero (1997) | 38,064,754 | 2,615 |
| Mortal Kombat Trilogy (1996) | 83,734,776 | 13,634 |
| Mortal Kombat vs. DC Universe (2008) | 437,374,743 | 9,945 |
| Mortal Kombat X (2015) | 4,903,396,954 | 450,166 |
| Mortal Kombat: Armageddon (2006) | 199,716,788 | 15,980 |
| Mortal Kombat: Deadly Alliance (2002) | 26,575,616 | 5,951 |
| Mortal Kombat: Deception (2004) | 82,920,215 | 10,724 |
| Mortal Kombat: Shaolin Monks (2005) | 162,808,850 | 19,733 |
| Mortal Kombat: Special Forces (2000) | 2,323,745 | 696 |
| Mortal Online (2010) | 0 | 0 |
