| Mary-Kate and Ashley: Winner's Circle (2001) | 1,200,582 | 89 |
| MarZ Rising (2017) | 70,066 | 33 |
| MarZ: Tactical Base Defense (2019) | 1,736,985 | 816 |
| MASAGORO (2021) | 17,786,370 | 971 |
| Masha and the Bear: catch-up (2010) | 2,233,973 | 45 |
| Masha and the Bear: Preparing for school (2010) | 240,267 | 8 |
| Mashed: Drive to Survive (2004) | 564,576 | 252 |
| Mashinky (2017) | 5,201,280 | 2,866 |
| Mashiro Witch: Midnight Marchen (2017) | 43,050 | 25 |
| MASK (1987) | 2,467,477 | 234 |
| The Mask (1995) | 40,126,737 | 3,325 |
| MASK III: VENOM Strikes Back (1988) | 23,174 | 26 |
| Mask of the Plague Doctor (2020) | 2,386 | 21 |
| Mask of the Rose (2023) | 142,635 | 173 |
| The Mask of the Sun (1982) | 73,983 | 130 |
| MASK Two Two (1987) | 11,137 | 10 |
| Masked Forces (2016) | 385,203 | 171 |
| Masked Forces 2: Mystic Demons (2017) | 104,409 | 18 |
| The Masked Rider: Kamen Rider ZO (1994) | 139,462 | 51 |
| Masked Shooters 2 (2016) | 67,295 | 32 |
| Maskmaker (2021) | 2,647,589 | 388 |
| Maskonauts: Chat'Attack (2022) | 17 | 1 |
| Masochistic Elves from Another World (2021) | 8,384 | 4 |
| Mason and Strings (2021) | 0 | 0 |
| Mason: Building Bricks (2020) | 2,666 | 8 |
| Masou no Viator (2019) | 176,663 | 146 |
| Masquerada: Songs and Shadows (2016) | 634,464 | 804 |
| Masquerade: The Baubles of Doom (2016) | 80,319 | 176 |
| Mass Destruction (1997) | 3,986,001 | 937 |
| Mass Effect (2007) | 612,438,082 | 259,279 |
| Mass Effect 2 (2010) | 505,051,676 | 187,623 |
| Mass Effect 3 (2012) | 1,014,784,734 | 185,680 |
| Mass Effect 3: From Ashes (2012) | 127,544 | 54 |
| Mass Effect 3: Omega (2012) | 3,337,183 | 545 |
| Mass Effect Galaxy (2009) | 156,642 | 53 |
| Mass Effect Infiltrator (2012) | 6,268,444 | 1,067 |
| Mass Effect: Andromeda (2017) | 507,111,605 | 167,872 |
| Mass Effect: Pinnacle Station (2009) | 131,597 | 31 |
| MASS FOR THE DEAD (2019) | 3,143,908 | 1,705 |
| MASS FOR THE DEAD OVERLORD (2019) | 1,754,398 | 1,415 |
| Mass Harvest (2022) | 9,254 | 9 |
| Massira (2019) | 80,512 | 133 |
| Massive Air Combat (2019) | 21,354 | 33 |
| Massive Assault (2003) | 157,135 | 251 |
| Massive Assault Network 2 (2006) | 3,785 | 58 |
| Massive Chalice (2015) | 2,481,282 | 1,569 |
| Massive Snowboarding (2005) | 3,400 | 4 |
| Master Builder (2023) | 973,642 | 170 |
| Master Chess (1986) | 1,784,162 | 244 |
| Master Chu and the Drunkard Hu (1989) | 11,885,502 | 101 |
| Master Detective Archives: RAIN CODE (2023) | 934,628 | 1,063 |
| Master Mind (1997) | 924,925 | 738 |
| Master Miner (1983) | 4,000 | 5 |
| Master of Darkness (1992) | 1,198,400 | 1,083 |
| Master of Dimensions (1996) | 30,567 | 44 |
| Master Of Dodging (2020) | 5,992 | 15 |
| Master of Epic (2005) | 142,560 | 1,313 |
| Master of Illusion (2006) | 2,167,600 | 90 |
| Master of Illusion Express: Deep Psyche (2008) | 0 | 0 |
| Master of Illusion Express: Funny Face (2009) | 286 | 1 |
| Master of Illusion Express: Shuffle Games (2009) | 163 | 1 |
| Master of Magic (1985) | 238,644 | 63 |
| Master of Magic (1994) | 1,870,865 | 1,892 |
| Master of Magic Chess (2017) | 761 | 3 |
| Master of Miracles (2021) | 13 | 2 |
| Master of Monsters (1988) | 4,196,711 | 898 |
| Master of Orion (1993) | 602,708 | 1,018 |
| Master of Orion (2016) | 3,432,099 | 1,279 |
| Master of Orion II: Battle at Antares (1996) | 4,333,870 | 2,131 |
| Master of Orion III (2003) | 466,750 | 233 |
| Master Of Pottery (2019) | 8,039,160 | 684 |
| Master of Puppets (2022) | 18,628,775 | 888 |
| Master Of Squad (2022) | 0 | 0 |
| Master of the Lamps (1985) | 57,584 | 43 |
| Master of the Skies: The Red Ace (2000) | 69,468 | 35 |
