| Momotarou Densetsu Gaiden (1992) | 694,713 | 370 |
| Momotarou Dentetsu WORLD (2010) | 2,565,403 | 1,134 |
| Mon Amour (2021) | 3,230,075 | 561 |
| Mon Bazou (2021) | 117,139,024 | 8,300 |
| Mon-Musu Master (2022) | 0 | 0 |
| Mon-Musu Quest (2022) | 134,528 | 25 |
| Monaco GP (1979) | 6,231,689 | 500 |
| Monaco Grand Prix (1998) | 3,609,852 | 725 |
| Monaco: What's Yours is Mine (2013) | 2,308,785 | 1,053 |
| Monads (2019) | 44,277 | 19 |
| Monads II (2022) | 1,927 | 6 |
| The Monarch: First Light (2024) | 7 | 3 |
| Monarch: The Butterfly King (2007) | 4,897 | 5 |
| Monark (2021) | 203,865,797 | 7,780 |
| Moncage (2021) | 889,871 | 483 |
| MonCon (2023) | 7,373 | 45 |
| Monday Meltdown (2024) | 1,288 | 45 |
| Monday Night Combat (2010) | 4,520,107 | 983 |
| Mondealy (2021) | 201,022 | 327 |
| Mondo Agency (2007) | 77,321 | 7 |
| Mondo Medicals (2007) | 274,800 | 19 |
| Mondrian - Abstraction in Beauty (2015) | 694 | 7 |
| Mondrian - Plastic Reality (2020) | 96 | 3 |
| Monet: The Mystery of the Orangery (2000) | 1,167 | 1 |
| The Money Game (1988) | 8,739,300 | 1,527 |
| The Money Game II: Kabutochou no Kiseki (1989) | 22 | 2 |
| Money Honey! (2021) | 1,054,347 | 400 |
| Money Makes Money (2019) | 1,627 | 3 |
| Money Puzzle Exchanger (1997) | 184,468 | 443 |
| Money Tree (2008) | 9,868,250 | 245 |
| Mongrel Games Minigames (2022) | 12 | 1 |
| Monica e a Guarda dos Coelhos (2018) | 1,221,305 | 49 |
| Monitor Puzzle Kineko: Kinetic Connection (1986) | 0 | 0 |
| Monitor Puzzle Kineko: Kinetic Connection Vol. II (1987) | 0 | 0 |
| Monkey Barrels (2019) | 209,904 | 262 |
| Monkey Bash (2009) | 10,847 | 4 |
| Monkey Bizness (1983) | 1,123 | 6 |
| Monkey Brains (2001) | 21,563 | 57 |
| Monkey Hero (1999) | 234,637 | 230 |
| Monkey Island 2: LeChuck's Revenge (1991) | 18,054,815 | 8,153 |
| The Monkey King (2008) | 119,183,501 | 4,257 |
| Monkey King: Hero is Back (2019) | 11,815,026 | 2,921 |
| Monkey King: Master of the Clouds (1989) | 0 | 0 |
| The Monkey King: The Legend Begins (2007) | 170,242 | 36 |
| Monkey Magic (1979) | 33,884 | 23 |
| Monkey Magic (1999) | 664,197 | 282 |
| Monkey Mischief: Party Time (2008) | 1,846,398 | 25 |
| Monkey Puncher (2000) | 13,841 | 49 |
| Monkey Quest (2011) | 918,593 | 160 |
| Monkeys & Dragons (2019) | 2,139 | 15 |
| Monmusu Gladiator (2021) | 19,339 | 70 |
| Mono ya Okane no Shikumi DS (2009) | 2,725 | 7 |
| Monobeno (2018) | 66,850 | 146 |
| Monobot (2021) | 214,828 | 342 |
| Monochroma (2014) | 887,261 | 601 |
| Monochrome Mobius: Rights and Wrongs Forgotten (2022) | 1,050,042 | 2,997 |
| Monochrome Order (2019) | 74,635 | 74 |
| Monochrome Racing (2011) | 25,090 | 19 |
| Monochrome RPG Episode 1: The Maniacal Morning (2021) | 260 | 4 |
| Monochrome World (2020) | 20,765 | 74 |
| Monolight (2020) | 27,762 | 166 |
| Monolisk (2019) | 121,411 | 196 |
| Monolith (2017) | 123,421 | 185 |
| Monolith VR (2020) | 689 | 1 |
| Monomals (2019) | 1,221,061 | 103 |
| Mononoke Forest (2017) | 22,837 | 11 |
| Monopoly (1985) | 403,699 | 85 |
| Monopoly (1988) | 205,602 | 52 |
| Monopoly (1991) | 3,569,756 | 469 |
| Monopoly (1995) | 80,398 | 42 |
| Monopoly (1997) | 136,891 | 113 |
| Monopoly (1999) | 341,126 | 87 |
| Monopoly (2019) | 5,898,766 | 589 |
| Monopoly City Streets (2009) | 4,476 | 8 |
| Monopoly for Nintendo Switch (2017) | 25,071,873 | 1,001 |
