| Mop Skater (2025) | 5,584 | 5 |
| Mope.io (2016) | 265,944,560 | 4,744 |
| Mops & Mobs: A Sweeping Dungeon Adventure (2027) | 0 | 0 |
| Moraff's Blast I (1991) | 170 | 2 |
| Moraff's Revenge (1988) | 6,714 | 10 |
| Moral Dilemma: The Interview (2025) | 32 | 3 |
| Morbid Inhale (2024) | 1,416 | 6 |
| Morbid: The Lords of Ire (2024) | 550,079 | 1,102 |
| Morbid: The Seven Acolytes (2020) | 1,400,270 | 2,265 |
| Mordhau (2019) | 262,294,985 | 30,423 |
| Mordheim: City of the Damned (2015) | 13,579,109 | 12,407 |
| Mordheim: Warband Skirmish (2017) | 80,519 | 85 |
| Mordon's Quest (1985) | 1,385 | 6 |
| Mordor: The Depths of Dejenol (1995) | 44,759 | 238 |
| More Far Land (2025) | 0 | 0 |
| More Sushi! (2025) | 25 | 1 |
| Morels: The Hunt 2 (2024) | 27,534 | 117 |
| Morgan lives in a Rocket House in VR (2017) | 18 | 1 |
| Morgan: Metal Detective (2025) | 1,319 | 39 |
| Morgenstern (2025) | 8,807,839 | 200 |
| Morgman (2024) | 0 | 2 |
| The Morgue Fissure Between Worlds (2017) | 43,316 | 16 |
| Mori Carta (2023) | 61,550 | 35 |
| Mori no Fukurou (2003) | 56 | 1 |
| Moria (1988) | 4,390,403 | 1,238 |
| Morita Shogi 64 (1998) | 202,755 | 333 |
| Morkredd (2020) | 491,615 | 558 |
| Morkull Ragast's Rage (2025) | 86,868 | 312 |
| Morloc's Tower (1979) | 643 | 3 |
| Morningdew Farms: A Gay Farming Game (2019) | 0 | 0 |
| Morningstar: Book of the Fallen (2024) | 16 | 1 |
| Morningstar: Descent to Deadrock (2015) | 156,740 | 119 |
| Morningtide Motel (2024) | 39 | 1 |
| MORODASHI SUMO (2022) | 657,950 | 227 |
| Moroi (2022) | 267,406 | 129 |
| The Moron Test (2009) | 20,171,599 | 227 |
| Moros Protocol (2025) | 336,137 | 219 |
| Morph Space (2021) | 14 | 1 |
| Morpheus (1987) | 9,220 | 10 |
| Morpheus (1998) | 261,796 | 170 |
| Morphies Law (2018) | 832,503 | 291 |
| Morphite (2017) | 7,870,682 | 1,191 |
| Morphus (2023) | 5,916 | 4 |
| MorphX (2008) | 213,193 | 350 |
| Morris Cave (2022) | 9 | 2 |
| MORSE (2022) | 614,690 | 107 |
| Morse Academy (2025) | 0 | 0 |
| MORSOMNIA:0 (2025) | 28 | 1 |
| Mort the Chicken (2000) | 1,216,613 | 312 |
| Mort's Dream Jump (2024) | 88 | 1 |
| Mortal Advocate (2025) | 0 | 0 |
| Mortal Blitz (2017) | 633,429 | 353 |
| Mortal Blitz: Combat Arena (2020) | 156,247 | 126 |
| Mortal Coil: Adrenalin Intelligence (1995) | 11,424 | 24 |
| Mortal Glory (2020) | 542,730 | 150 |
| Mortal Glory 2 (2024) | 84,814 | 88 |
| Mortal Kombat (1992) | 587,833,184 | 73,907 |
| Mortal Kombat 1 (2023) | 1,716,915,369 | 391,495 |
| Mortal Kombat 11 (2019) | 6,077,917,088 | 904,368 |
| Mortal Kombat 3 (1995) | 120,433,050 | 12,799 |
| Mortal Kombat 4 (1997) | 57,257,803 | 10,514 |
| Mortal Kombat 9 (2011) | 2,815,375,891 | 166,119 |
| Mortal Kombat Advance (2001) | 1,540,208 | 306 |
| Mortal Kombat Arcade Kollection (2011) | 4,308,027 | 1,017 |
| Mortal Kombat Gold (1999) | 9,910,217 | 2,487 |
| Mortal Kombat II (1993) | 200,676,015 | 32,535 |
| Mortal Kombat Kollection (2008) | 796,400 | 229 |
| Mortal Kombat Mobile (2015) | 200,748,125 | 50,060 |
| Mortal Kombat Mythologies: Sub-Zero (1997) | 38,581,556 | 2,897 |
| Mortal Kombat Trilogy (1996) | 86,396,105 | 15,160 |
| Mortal Kombat vs. DC Universe (2008) | 438,558,047 | 10,871 |
| Mortal Kombat X (2015) | 4,928,736,476 | 460,065 |
| Mortal Kombat: Armageddon (2006) | 200,443,147 | 16,941 |
| Mortal Kombat: Deadly Alliance (2002) | 26,878,337 | 6,219 |
| Mortal Kombat: Deception (2004) | 83,566,675 | 11,347 |
