| Monster Maker: Barcode Saga (1993) | 780 | 2 |
| Monster Maulers (1993) | 1,411,141 | 325 |
| Monster Max (1994) | 670,157 | 236 |
| Monster Mayhem: Build and Battle (2009) | 1,394 | 8 |
| Monster Maze (1982) | 2,973,466 | 144 |
| Monster Meals (2025) | 1,940,141 | 34 |
| Monster Memory (2023) | 4,350 | 9 |
| Monster Menu: The Scavenger's Cookbook (2022) | 194,971 | 471 |
| Monster Milktruck (2008) | 315 | 1 |
| The Monster Mole (2022) | 36,759 | 5 |
| Monster Monpiece (2013) | 726,250 | 511 |
| Monster Mop Up (2025) | 251,976 | 121 |
| Monster Munch (1983) | 237,404 | 39 |
| Monster Museum (2023) | 13,782,285 | 2,155 |
| Monster of Nyum (2022) | 0 | 0 |
| Monster Ops 2 (2025) | 0 | 0 |
| Monster Paradise (1997) | 90,691 | 45 |
| Monster Party (1989) | 11,813,504 | 1,088 |
| The Monster PIMP (2022) | 0 | 0 |
| Monster Prom (2018) | 38,770,923 | 5,237 |
| Monster Prom 2: Monster Camp (2020) | 3,207,506 | 1,452 |
| Monster Prom 3: Monster Roadtrip (2022) | 754,141 | 668 |
| Monster Prom: XXL (2020) | 510,167 | 233 |
| Monster Puzzle (2006) | 1,703 | 4 |
| Monster Puzzle (2016) | 546,925 | 150 |
| Monster Racers (2009) | 375,096 | 523 |
| Monster Racing League (2023) | 24,065 | 77 |
| Monster Rancher (1997) | 10,970,034 | 3,296 |
| Monster Rancher 2 (1999) | 41,839,433 | 8,941 |
| Monster Rancher 3 (2001) | 1,833,597 | 672 |
| Monster Rancher 4 (2003) | 2,773,090 | 898 |
| Monster Rancher Advance (2001) | 563,341 | 220 |
| Monster Rancher Advance 2 (2002) | 121,778 | 307 |
| Monster Rancher Battle Card Episode II (2000) | 57,011 | 139 |
| Monster Rancher Battle Card Game (1999) | 6,290 | 25 |
| Monster Rancher DS (2008) | 132,587 | 137 |
| Monster Rancher EVO (2005) | 351,540 | 323 |
| Monster Rancher Explorer (2000) | 41,441 | 37 |
| Monster Retsuden Oreca Battle (2012) | 6,052,944 | 3,609 |
| Monster Run: Downfall of the Empire (2024) | 9,720 | 52 |
| Monster Sanctuary (2020) | 7,922,324 | 11,382 |
| Monster Scout (2024) | 107,681 | 13 |
| Monster Seed (1998) | 150,283 | 236 |
| Monster Slayers (2017) | 3,831,352 | 1,211 |
| Monster Slider (1997) | 43,163 | 40 |
| Monster Smash (1983) | 153,058 | 69 |
| Monster Stalker (2022) | 18,035 | 45 |
| Monster Strike (2013) | 4,867,861,891 | 138,577 |
| Monster Super League (2016) | 5,600,715 | 4,432 |
| Monster Tale (2011) | 675,943 | 475 |
| Monster Train (2020) | 28,599,744 | 19,646 |
| Monster Train First Class (2021) | 103,552 | 28 |
| Monster Tribe (2023) | 55,110 | 67 |
| Monster Truck Championship (2020) | 2,377,393 | 1,546 |
| Monster Truck Madness (1996) | 577,423 | 346 |
| Monster Truck Madness (2003) | 96,934 | 79 |
| Monster Truck Madness 2 (1998) | 855,668 | 538 |
| Monster Truck Madness 64 (1999) | 372,356 | 223 |
| Monster Truck Rally (1991) | 628,446 | 149 |
| Monster Truck Wars (1994) | 91,958 | 63 |
| Monster Truck XT Airport Derby (2018) | 348,773 | 120 |
| Monster Trucks (2004) | 2,531,352,530 | 24,089 |
| Monster Trucks Mayhem (2006) | 104,644 | 99 |
| Monster Trucks Nitro (2008) | 2,053,254 | 109 |
| Monster Trucks Nitro 2 (2010) | 1,145,690 | 13 |
| Monster Trux: Arenas (2007) | 16,979 | 70 |
| The Monster Under Your Skin (2022) | 502 | 6 |
| Monster Viator (2020) | 63,482 | 90 |
| Monster World IV (1994) | 1,441,414 | 1,522 |
| Monster! Bass Fishing (2002) | 5,175 | 12 |
| MonsterBag (2015) | 121,476 | 34 |
| MonsterBusters: Match 3 Puzzle (2013) | 81,084 | 565 |
| MonsterMatch (2008) | 196 | 4 |
| Monstermind (2012) | 647,240 | 17 |
| MonsterMMORPG (2009) | 1,444,249 | 1,175 |
