| More Brain Training from Dr. Kawashima: How Old is Your Brain? | Nintendo | 9/10 | |
| Morningstar: Descent to Deadrock | Phoenix Online Publishing | 5/10 | |
| Morphie's Law | Bohemia | 4/10 | |
| Morphite | Crescent Moon | 4/10 | |
| Morphite | Crescent Moon | 4/10 | |
| Mortal Kombat 1 | Warner Bros. | 7/10 | |
| Mortal Kombat 11 | Warner Bros. | 8/10 | |
| Mortal Kombat 11 Ultimate | Warner Bros. | 9/10 | |
| Mortal Kombat 11: Aftermath | Warner Bros. | 7/10 | |
| Mortal Kombat 11: Kombat Pack 2 | Warner Bros. | 8/10 | |
| Mortal Kombat X | Warner Bros. | 8/10 | |
| Mortal Kombat XL | Warner Bros. | 7/10 | |
| Mortal Kombat: Deadly Alliance | Midway | 6/10 | |
| Moss | Polyarc | 9/10 | |
| Moss and Moss: Book II Bundle | Polyarc | 9/10 | |
| MOTHERGUNSHIP | Grip Digital | 6/10 | |
| Moto Racer 4 | Anuman | 7/10 | |
| Moto Racer DS | Nobilis | 7/10 | |
| MotoGP 17 | Koch Media | 7/10 | |
| MotoGP 18 | MileStone | 6/10 | |
| MotoGP 20 | MileStone | 6/10 | |
| MotoGP 21 | MileStone | 7/10 | |
| Motorsport Manager | SEGA | 8/10 | |
| Motorsport Manager | SEGA | 6/10 | |
| Mount & Blade: Warband | Paradox | 6/10 | |
| Mount & Blade: Warband | Paradox | 5/10 | |
| MouseBot | Vector Unit | 7/10 | |
| MouseBot | Vector Unit | 6/10 | |
| MouseCraft | Crunching Koalas | 5/10 | |
| Moving Out | Team17 | 8/10 | |
| Mr. DRILLER DrillLand | Bandai Namco | 8/10 | |
| Mr. Know It All | Tarboosh FZE | 7/10 | |
| Mr. Shifty | tinybuild | 8/10 | |
| Mr. Shifty | tinybuild | 7/10 | |
| Mrs Kim | Yogiyo | 7/10 | |
| Ms. Pac-Man | Midway | 8/10 | |
| Mudd Masher | Atooi | 5/10 | |
| Muddledash | PQube | 6/10 | |
| Mugen Souls Z | Ghostlight | 6/10 | |
| Mulaka | Lienzo | 9/10 | |
| Mundaun | MWM Interactive | 6/10 | |
| Muramasa Rebirth | Aksys | 9/10 | |
| Muramasa: The Demon Blade | Rising Star | 9/10 | |
| Murder | Curve Digital | 3/10 | |
| Murder in Venice | City | 8/10 | |
| Murder on the Titanic | Easy | 6/10 | |
| Mushihimesama Futari Ver 1.5 | Cave | 9/10 | |
| Mushroom 11 | Untame | 7/10 | |
| Mushroom 11 | Untame | 6/10 | |
| Mushroom Men: The Spore Wars | SouthPeak | 7/10 | |
| Mushroom Wars | Zillion Whales | 6/10 | |
| Mushroom Wars 2 | Zillion Whales | 8/10 | |
| Mushroom Wars 2 | Zillion Whales | 6/10 | |
| Music On: Electric Guitar | Abylight | 5/10 | |
| MUSYNX | PM Studios | 7/10 | |
| Mutant Mudds | Renegade Kid | 9/10 | |
| Mutant Mudds Collection | Atooi | 8/10 | |
| Mutant Mudds Deluxe | Renegade Kid | 8/10 | |
| Mutant Mudds Deluxe | Renegade Kid | 8/10 | |
| Mutant Mudds Super Challenge | Renegade Kid | 8/10 | |
| Mutant Mudds Super Challenge | Renegade Kid | 6/10 | |
| Mutazione | Akupara Games | 8/10 | |
| Muv-Luv | Degica | 7/10 | |
| Muv-Luv Alternative | Degica | 9/10 | |
| MXGP 2019: The Official Motocross Videogame | MileStone | 6/10 | |
| MXGP 2020 - The Official Motocross Videogame | MileStone | 7/10 | |
| MXGP Pro | MileStone | 6/10 | |
| MXGP2: The Official Motocross Videogame | PQube | 5/10 | |
| MXGP3: The Official Motocross Videogame | MileStone | 6/10 | |
| My Big Sister | Ratalaika Games | 4/10 | |
| My Brother Ate My Pudding! | hap | 8/10 | |
| My Hero One's Justice | Bandai Namco | 6/10 | |
| My Horse & Me | Atari | 8/10 | |
| My Japanese Coach | Ubisoft | 7/10 | |
| My Starry Night | Nintendo | 8/10 | |
| My Time at Portia | Team17 | 7/10 | |
| My Zoo Vet Practice 3D | TREVA Entertainment | 3/10 | |
| MySims | EA | 5/10 | |
| MySims | EA | 6/10 | |
| MySims Agents | EA | 8/10 | |
| Myst | Funbox | 4/10 | |
| Myst | Midway | 6/10 | |
| Myst | Red Orb | 8/10 | |
| Myst III: Exile | Ubisoft | 7/10 | |
| Mystery Case Files: MillionHeir | Nintendo | 7/10 | |
| Mystery Case Files: The Malgrave Incident | Nintendo | 9/10 | |
| Mystery Detective / Touch Detective | Atlus | 8/10 | |
| Mystery Detective 2 | Atlus | 8/10 | |
| Mystery Dungeon: Shiren the Wanderer | SEGA | 8/10 | |
| Mystery Stories | Avanquest | 5/10 | |
| Mystery Stories: Curse of the Ancient Spirits | Avanquest | 4/10 | |
| Mystical Ninja 2 Starring Goemon | Konami | 9/10 | |
| Mystical Ninja Starring Goemon | Konami | 8/10 | |
| Mythargia | Bonus Stage | 6/10 | |