| Marvin's Mittens (2014) | 1,211,607 | 180 |
| Mary Kay Andrews: The Fixer Upper (2010) | 8,286 | 5 |
| Mary King's Riding Star (1999) | 24,693 | 31 |
| Mary Le Chef - Cooking Passion (2017) | 35,666 | 113 |
| Mary Shelley's Frankenstein (1994) | 2,253,697 | 350 |
| Mary Skelter 2 (2018) | 1,114,070 | 2,148 |
| Mary Skelter Finale (2021) | 932,700 | 1,938 |
| Mary Skelter: Nightmares (2016) | 2,818,602 | 4,403 |
| Mary-Kate and Ashley: Crush Course (2001) | 330,021 | 143 |
| Mary-Kate and Ashley: Girls Night Out (2002) | 224,382 | 35 |
| Mary-Kate and Ashley: Magical Mystery Mall (2000) | 1,217,705 | 125 |
| Mary-Kate and Ashley: Pocket Planner (2000) | 9,943 | 13 |
| Mary-Kate and Ashley: Winner's Circle (2001) | 1,093,494 | 101 |
| MarZ Rising (2017) | 219,617 | 86 |
| MarZ: Tactical Base Defense (2019) | 1,380,182 | 803 |
| MASAGORO (2021) | 12,571,344 | 1,004 |
| Maseylia: Echoes of the Past (2026) | 0 | 0 |
| MASH VP! Re:VISION (2024) | 218,652 | 591 |
| Masha and the Bear: catch-up (2010) | 1,740,112 | 38 |
| Masha and the Bear: Preparing for school (2010) | 16,432 | 8 |
| Mashed: Drive to Survive (2004) | 489,141 | 255 |
| Mashinky (2017) | 5,453,953 | 3,114 |
| Mashiro Witch: Midnight Marchen (2017) | 37,742 | 24 |
| MASK (1987) | 16,237 | 22 |
| The Mask (1995) | 28,600,995 | 2,242 |
| MASK III: VENOM Strikes Back (1988) | 23,312 | 27 |
| Mask of the Plague Doctor (2020) | 2,740 | 30 |
| Mask of the Rose (2023) | 1,192,688 | 187 |
| The Mask of the Sun (1982) | 75,729 | 85 |
| Mask Quest (2024) | 26,799 | 34 |
| MASK Two Two (1987) | 8,176 | 10 |
| Masked and Mysterious (2017) | 0 | 0 |
| Masked Forces (2016) | 380,689 | 136 |
| Masked Forces 2: Mystic Demons (2017) | 104,779 | 19 |
| Masked Forces: Zombie Survival (2017) | 3 | 1 |
| The Masked Rider: Kamen Rider ZO (1994) | 115,408 | 50 |
| Masked Shooters 2 (2016) | 83,197 | 37 |
| Maskmaker (2021) | 2,670,597 | 412 |
| Maskonauts: Chat'Attack (2022) | 17 | 1 |
| Masks Of Deception (2022) | 2,232,292 | 66 |
| Maso Marble (2017) | 0 | 0 |
| Masochistic Elves from Another World (2021) | 8,573 | 4 |
| Mason and Strings (2021) | 0 | 0 |
| Mason: Building Bricks (2020) | 3,133 | 10 |
| Masou no Viator (2019) | 94,550 | 129 |
| Masquerada: Songs and Shadows (2016) | 637,152 | 871 |
| Masquerade Mysteries: The Case of the Copycat Curator (2010) | 4,079 | 4 |
| Masquerade: The Baubles of Doom (2016) | 266,170 | 197 |
| Mass Destruction (1997) | 9,624,604 | 1,208 |
| Mass Effect (2007) | 557,451,165 | 258,904 |
| Mass Effect 2 (2010) | 566,473,478 | 217,688 |
| Mass Effect 3 (2012) | 1,073,613,480 | 220,513 |
| Mass Effect 3: From Ashes (2012) | 37 | 2 |
| Mass Effect 3: Omega (2012) | 1,228,833 | 122 |
| Mass Effect Galaxy (2009) | 156,848 | 59 |
| Mass Effect Infiltrator (2012) | 48,804,387 | 3,002 |
| Mass Effect: Andromeda (2017) | 507,945,382 | 184,638 |
| Mass Effect: Pinnacle Station (2009) | 171,854 | 34 |
| MASS FOR THE DEAD (2019) | 2,986,037 | 1,745 |
| MASS FOR THE DEAD OVERLORD (2019) | 1,571,331 | 1,374 |
| Mass Harvest (2022) | 130,996 | 10 |
| Mass O' Kyzt (2018) | 0 | 0 |
| Massacre At The Mirage (2024) | 11,425,920 | 883 |
| Massira (2019) | 75,146 | 127 |
| Massive Air Combat (2019) | 22,711 | 26 |
| Massive Assault (2003) | 396,508 | 295 |
| Massive Assault Network 2 (2006) | 4,235 | 59 |
| Massive Chalice (2015) | 2,481,011 | 1,612 |
| Massive Defense (2024) | 68 | 3 |
| Massive Snowboarding (2005) | 11,191 | 15 |
| Mastema: Out of Hell (2017) | 3,180 | 18 |
| Master Arena (2022) | 25,941 | 99 |
| Master Blaster (2024) | 21,709,752 | 348 |
| Master Builder (2023) | 4,865,840 | 252 |
| Master Chess (1986) | 1,649,779 | 386 |
