| M.A.C.E. | action game | — | Microsoft Windows |
| M.A.S.S. Builder | hack and slash, action game, third-person shooter, shooter game | Vermillion Digital | Microsoft Windows |
| MACE: Mapinguari's Temple | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Mach Breakers | sports video game | Namco | arcade video game machine |
| Machine Learning: Episode I | — | Volens Nolens Games | Microsoft Windows |
| Machines | — | — | Microsoft Windows |
| Macross Triangle Frontier | action game | Artdink | PlayStation Portable |
| Madagascar Kartz | crossover fiction, racing video game | Sidhe | PlayStation 3, Nintendo DS, Wii |
| Madden NFL 06 | American football video game | EA Orlando | Microsoft Windows, Nintendo DS, PlayStation Portable, Nintendo GameCube |
| Madden NFL 09 | American football video game | EA Orlando | PlayStation 3, Nintendo DS, PlayStation Portable, Wii |
| Madden NFL 13 | American football video game | EA Orlando | PlayStation 3, PlayStation Vita, Wii U, Wii |
| Madden NFL 22 | American football video game | EA Orlando | Microsoft Windows |
| Madden NFL 23 | American football video game | EA Orlando | Microsoft Windows, Xbox Series X and Series S |
| MADNESS: Project Nexus | shooter game | — | Microsoft Windows |
| Maelstrom: The Battle for Earth Begins | — | K-D Lab | Microsoft Windows |
| Mafia II: Definitive Edition | action-adventure game | Q5647891 | Microsoft Windows |
| Mafia Triple Pack | action-adventure game, third-person shooter | Q222045, Q5647891 | Microsoft Windows |
| Mage Rage | action game, role-playing video game | — | Microsoft Windows |
| MageQuit | fighting game | — | Microsoft Windows, macOS, Linux |
| Magic 2014 — Duels of the Planeswalkers | — | Stainless Games | Microsoft Windows, Android |
| Magic Ball 2 | Breakout clone | Dream Dale, Alawar Entertainment | Microsoft Windows |
| Magic Balls | — | — | Microsoft Windows |
| Magic Carpet | — | Bullfrog Productions | Microsoft Windows, DOS |
| Magic Duels: Origins | — | Stainless Games | Microsoft Windows |
| Magic Exposure – Yuri Visual Novel | casual game, simulation video game | — | Microsoft Windows |
| Magic Griddlers 2 | — | Creobit | Microsoft Windows |
| Magic Heroes: Save Our Park | tile-matching video game | Anawiki Games | Microsoft Windows, macOS |
| Magic Lines | puzzle video game | — | Atari ST |
| Magic Synthesis | — | — | Microsoft Windows |
| Magic Touch | — | — | Adobe Flash |
| Magic Twins | casual game, action game, strategy video game | — | Microsoft Windows, macOS, Linux |
| Magical Beat | falling block puzzle game | Arc System Works | PlayStation 3, Microsoft Windows, PlayStation Vita, arcade video game machine |
| Magical girl's labyrinth | — | — | Microsoft Windows |
| Magical journey | — | — | Microsoft Windows |
| MagicalGirl Mimi | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Magician of Fire | — | — | Microsoft Windows |
| Magicians And Monsters | adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Magicka: Vietnam | role-playing video game | Q16833903 | Microsoft Windows |
| Magnifico | — | — | Microsoft Windows |
| Magnus & Myggen - Rene Hænder | educational video game | — | Android |
| Magnus & Myggen i Afrika | educational video game | Ivanoff Interactive | Microsoft Windows |
| Magnus & Myggen i Australien | — | Ivanoff Interactive | Microsoft Windows |
| Magnus & Myggen i Sydamerika | educational video game | Ivanoff Interactive | Microsoft Windows |
| Magocracy: Experimentation | simulation video game, action game, strategy video game | — | Microsoft Windows |
| Mahjong Business Style | — | Creobit | Microsoft Windows |
| Mahjong Gokū Tenjiku | — | — | — |
| Mahjong Hōrōki Classic | mahjong video game | — | Nintendo 64 |
| Mahjong Kazoku | mahjong video game | — | Famicom Disk System |
| Mahjong Nagomi | casual game | Zoo Corporation | Microsoft Windows |
| Mahjong Pretty Manga Girls | casual game | — | Microsoft Windows |
| Mahjong Quest | mahjong video game | — | Microsoft Windows |
| Mahjong Travel | casual game | — | Microsoft Windows |
| Mahjong Vanilla Syndrome | strip mahjong | — | TurboGrafx-16, NEC PC-9800 series, arcade video game machine |
| Mahjong World Contest | — | Creobit | Microsoft Windows |
| Mahou no Tenshi Creamy Mami - Futatsu no Sekai no Monogatari | science fantasy video game, visual novel | — | NEC PC-9800 series |
| Mail Time | action-adventure game, platform game | Appelmoes | Microsoft Windows, macOS |
| Maimai DX Universe Plus | — | — | — |
| Maimai Finale | — | — | — |
| Maimai Green Plus | — | Q122741 | — |
| Maimai Milk | — | — | — |
| Maimai Murasaki | — | Q122741 | — |
| Maimai Orange Plus | — | Q122741 | — |
| Main Assembly | — | Ember Trail | Microsoft Windows |
| Main Battle Tank: Central Germany | — | Simulations Canada | Apple II series |
| Mainframe Defenders | turn-based tactics | Synthetic Domain | Microsoft Windows, Linux, Xbox Series X and Series S |
| Major League Baseball 2K12 | sports video game | Visual Concepts | PlayStation 3, Microsoft Windows, Nintendo DS, Wii |
| Major League Baseball 2K7 | sports video game | 2K Los Angeles | PlayStation 3, Nintendo DS |
| Major Wii: Perfect Closer | sports video game | DreamFactory | Wii |
| Majula Frontier: The Offense | action game, strategy video game, role-playing video game | — | Microsoft Windows |
| Majyūō | platform game | KSS | Super Nintendo Entertainment System |
| Maka Maka | role-playing video game | Shōei System, Office Koukan | Super Nintendo Entertainment System |
| Make the Burger | simulation video game | Creative Hand | Microsoft Windows |
| Making History: The Calm & The Storm | — | Muzzy Lane | Microsoft Windows |
| Making History: The Great War | simulation video game, strategy video game | — | Microsoft Windows, macOS, Linux |
| Malfortune | — | — | Microsoft Windows |
| Malibu Bikini Volleyball | — | — | Atari Lynx |
| Malice | — | Argonaut Games | — |
| Malice & Greed | strategy video game, role-playing video game | — | Microsoft Windows |
| Mallow Drops | casual game | — | Microsoft Windows, macOS |
| Mama Farm | farming simulation game, time management video game | — | Microsoft Windows |
| Mama Love | eroge, visual novel | — | Microsoft Windows |
| Mama Mama Mama | eroge, visual novel | Flying Shine | Microsoft Windows |
| Man O' War: Corsair | — | Evil Twin Artworks | Microsoft Windows, macOS, Linux |
| ManaCollect | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Manchester United Championship Soccer | — | Krisalis Software | Super Nintendo Entertainment System |
| MANDAGON | platform game | — | Microsoft Windows, macOS |
| Mandemon | adventure video game | — | Microsoft Windows, macOS, Linux |
| Mandinga - A Tale of Banzo | adventure video game, role-playing video game | — | Microsoft Windows |
| Mandroid | — | CRL Group | Commodore 64 |
| Maneater and the Golden Teacher | casual game, adventure video game | — | Microsoft Windows |
| Manhunt | — | — | PlayStation 3, Microsoft Windows |
| Manhunter 2: San Francisco | post-apocalyptic video game, adventure video game | Evryware | Classic Mac OS, DOS, Mac operating system, Atari ST |
| Manhunter: New York | post-apocalyptic video game, adventure video game | Evryware | Apple IIGS, DOS, Apple II series, Atari ST |
| Manic Archers | casual game, action game | — | Microsoft Windows, macOS, Linux |
| Manic Miner | — | Matthew Smith | ZX Spectrum |
| Manipulate: Sacrifice | adventure video game | — | Microsoft Windows |
| Manufactoria 2022 | puzzle video game | — | Microsoft Windows, macOS |
| Mappy-Land | platform game | Tose Co. | Nintendo Entertainment System |
| Mapstermind | casual game, action game | — | Microsoft Windows |
| Maptroid: Worlds | casual game | — | Microsoft Windows |
| Marble Knights | — | WayForward Technologies | macOS |
| Marble Void | rolling platformer | — | Microsoft Windows, Linux |
| Marbledrome: Crazy Stunt Balls | — | — | Microsoft Windows |
| March of Shrooms | action game | — | Microsoft Windows |
| March, March! European Warfare | — | — | Microsoft Windows |
| Marfusha | shoot 'em up | — | Microsoft Windows, Xbox Series X and Series S |
| Marginalia | adventure video game | — | Microsoft Windows |
| Mari and Bayu - The Road Home | platform game | — | Microsoft Windows |
| Marie Antoinette's Solitaire | casual game | Deyteris Games | Microsoft Windows |
| Marie's Room | adventure video game | — | Microsoft Windows |
| Marimoth | action game | — | Microsoft Windows |
| Mario & Luigi: Dream Team | turn-based Japanese role-playing game, role-playing video game | AlphaDream | Nintendo 3DS |
| Mario & Sonic at the London 2012 Olympic Games | crossover fiction, sports video game | Sega Sports R&D | Nintendo 3DS, Wii |
| Mario Kart Wii | kart racing game | Nintendo Entertainment Analysis & Development | Wii |
| Mario Party 8 | party video game | Hudson Soft | Wii |
| Mario Party-e | — | — | — |
| Mario Superstar Baseball | sports video game | Namco | Nintendo GameCube |
| Mario Tennis | sports video game | — | Game Boy Color |
| Mario the Juggler | action game | Nintendo | Game & Watch series |
| Mario vs. Donkey Kong 2: March of the Minis | puzzle video game | Nintendo Software Technology | Nintendo DS, Wii U |
| Mario's Early Years! Preschool Fun | educational video game | — | Super Nintendo Entertainment System |
| MarisaLand Legacy | — | Twilight Frontier | Microsoft Windows |
| Mark's Magnificent Marble Maze | casual game | — | Microsoft Windows, Linux |
| Mars Underground | — | — | Microsoft Windows, Linux |
| Marsupilami: Hoobadventure | platform game | — | Microsoft Windows, macOS |
| Martian Gothic: Unification | — | — | Microsoft Windows |
| Martian Panic | — | N-Fusion Interactive | Microsoft Windows, Wii |
| Marvel Puzzle Quest | puzzle video game | — | Microsoft Windows, Android |
| Marvel Realm of Champions | multiplayer online battle arena | Kabam | Android |
| Marvel Snap | collectible card video game, card battle video game | Second Dinner | Microsoft Windows, Android |
| Marvel Super Hero Squad | crossover fiction, beat 'em up | Blue Tongue Entertainment | Nintendo DS, Wii |
| Marvel vs. Capcom Origins | crossover fiction, fighting game | Capcom | PlayStation 3 |
| Marvellous Inc. | simulation video game, strategy video game | — | Microsoft Windows, macOS, Linux |
| Marvin The Hatter | — | — | Microsoft Windows |
| Marvinter | — | University of Skövde, Sveriges Radio | Android |
| Masagoro | horror video game | — | Microsoft Windows |
| Mashed | — | Supersonic Software | Microsoft Windows |
| Mask Quest | — | Increpare games | Microsoft Windows, macOS |
| Maskmaker | adventure video game, puzzle video game | Innerspace VR | Microsoft Windows |
| Mass Effect Legendary Edition | space opera video game, action role-playing game, science fiction video game | Bioware | Microsoft Windows |
| Massive Assault Network 2 | turn-based tactics | — | Microsoft Windows |
| Master Boy | casual game, simulation video game, adventure video game, role-playing video game | — | Microsoft Windows |
| Master of Orion II: Battle at Antares | space opera video game, turn-based strategy video game, 4X | Simtex | Classic Mac OS, Microsoft Windows, macOS, DOS, Linux |
| Master of the Forbidden Sea | — | — | Microsoft Windows |
| Master of the Skies: The Red Ace | — | — | Microsoft Windows |
| Masters of the Universe: The Super Adventure | — | Adventure Soft | ZX Spectrum, BBC Micro, Commodore 64 |
| Masuzoe Youichi: Asa Made Famicom | adventure video game | Coconuts Japan | Nintendo Entertainment System |
| Mata Nui Online Game | point-and-click adventure | Templar Studios | web browser |
| Match Day | — | — | Microsoft Windows, Amstrad CPC, MSX |
| Match Point | — | — | Microsoft Windows |
| Match Point | — | D&L Research | ColecoVision, KC compact, ZX Spectrum, MOTO Gamme, Amstrad CPC, Sinclair QL, Atari ST, Commodore 64 |
| Matcha Warriors | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Matchpoint: Tennis Championships | tennis video game | Torus Games | Microsoft Windows, Xbox Series X and Series S |
| Math Adventures | casual game, adventure video game | LK Avalon | Microsoft Windows |
| Math Ball | — | — | Microsoft Windows |
| MATH EXPRESSions | casual game, strategy video game | — | Microsoft Windows |
| Mathica | point-and-click adventure, educational video game, adventure video game | Braingame Publishing | Microsoft Windows, macOS |
| Mathomatics | casual game | QuickBobber | Microsoft Windows |
| Mato Anomalies | turn-based role-playing game | Arrowiz | Microsoft Windows, Xbox Series X and Series S |
| Matraquinha PAIR | casual game | Mens Sana Interactive | Microsoft Windows, macOS |
| Mausoleum of the Medusa | — | — | Microsoft Windows, macOS, Linux |
| Maverta City | — | My Label Game Studio | Microsoft Windows, macOS |
| Max Payne | — | — | Microsoft Windows, macOS, Android |
| Maximum Football 2018 | — | — | — |
| Maximum Racing: GP Classic Racing | — | Brain in a Jar | Wii |
| Maximum-Football | American football video game | — | Microsoft Windows |
| MaxPlay Classic Games Volume 1 | — | Action Replay | Nintendo GameCube |
| Maya the Bee & Her Friends | platform game | — | Game Boy Color |
| Mayflower Reflections | casual game | — | Microsoft Windows |
| Maze Art: Brown | — | My Label Game Studio | Microsoft Windows |
| Maze Blaze | casual game, adventure video game, action game, action-adventure game | Revulo Games | Microsoft Windows, macOS, Linux, Xbox Series X and Series S |
| Maze Lord | strategy video game | Jetdogs Studios | Microsoft Windows |
| Maze Of The Gamja | casual game | — | Microsoft Windows |
| Maze to the old castle | adventure video game | — | Microsoft Windows |
| Maze Workout - Urban Lost Solo Car Racer | casual game, simulation video game, racing video game | — | Microsoft Windows |
| MazeBot | casual game, action game | — | Microsoft Windows |
| McSpace Colosseum | action game | — | Microsoft Windows |
| MDK 2 | science fiction video game, third-person shooter | Bioware | Microsoft Windows |
| Meadowland | simulation video game | — | Microsoft Windows |
| Mecha Knights: Nightmare | action game | — | Microsoft Windows |
| Mechaguard | action game | — | Microsoft Windows |
| Mechanibot | action game, strategy video game | — | Microsoft Windows |
| Mechanic 8230: Escape from Ilgrot | casual game, adventure video game | — | Microsoft Windows, Linux |
| MECHANICA: A Ballad of the Rabbit and Mercury | eroge, bishōjo game, adventure video game, puzzle video game | — | Microsoft Windows |
| MechDefender - Tower Defense | casual game, adventure video game, action game, action-adventure game, strategy video game, sports video game | — | Microsoft Windows, macOS |
| Mecho Tales | platform game | Arcade Distillery | Microsoft Windows, macOS, PlayStation Vita |
| MechWarrior Online | vehicular combat game, action game | Piranha Games | Microsoft Windows |
| Medal of Honor: Allied Assault | first-person shooter | 2015, Inc. | Microsoft Windows, macOS, Linux |
| Medal of Honor: Allied Assault - Spearhead | first-person shooter | — | Microsoft Windows, macOS |
| Medal of Honor: European Assault | first-person shooter | Danger Close Games | Nintendo GameCube |
| Medal of Honor: Frontline | first-person shooter | Danger Close Games | PlayStation Portable, Nintendo GameCube |
| Medal of Honor: Heroes | first-person shooter | EA Vancouver | PlayStation Portable |
| Medal of Honor: Infiltrator | — | — | — |
| Medal of Honor: Vanguard | first-person shooter | Budcat Creations | Wii |
| MEDAL OF LEGENDS | — | — | Microsoft Windows |
| Medieval - Embers of War | casual game, action game | — | Microsoft Windows |
| Medieval Arms | action game, role-playing video game | — | Microsoft Windows |
| Medieval Dynasty | survival game, sandbox game, city-building game | Render Cube | Microsoft Windows, Xbox Series X and Series S |
| MediEvil | — | Guerrilla Cambridge | — |
| MediEvil: Resurrection | — | Guerrilla Cambridge | PlayStation Portable |
| Meet the Robinsons | — | Climax Studios | Microsoft Windows, Nintendo DS, Nintendo GameCube, Wii |
| Meet Your Maker | first-person shooter, sandbox game | Q2080076 | Microsoft Windows, Xbox Series X and Series S |
| Mega Apocalypse | — | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Mega Man | action game | — | DOS |
| Mega Man 7 | action game, platform game | Capcom | Super Nintendo Entertainment System |
| Mega Man 9 | action game | Inti Creates | PlayStation Portable, Wii |
| Mega Man II | action game | — | Game Boy |
| Mega Man Legends | action-adventure game | Capcom | Microsoft Windows, PlayStation Portable, Nintendo 64 |
| Mega Man Legends 3 | action role-playing game | Capcom | Nintendo 3DS |
| Mega Man V | action game | Capcom | Game Boy |
| Mega Man X8 | action game | Capcom | Microsoft Windows |
| Mega Man Zero 2 | action game | Inti Creates | Wii U |
| Mega Man ZX Advent | Metroidvania, action game | Inti Creates | Nintendo DS |
| Mega Man: The Power Battle | arcade, fighting game | Capcom | CP System |
| Mega Turrican | shoot 'em up, science fiction video game | Factor 5 | — |
| Megacraft Hentai Survival | casual game, simulation video game, adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Megadimension Neptunia VIIR | Japanese role-playing video game, role-playing video game | — | Microsoft Windows |
| Meiji Tokyo Renka | otome game, visual novel | HuneX, Dwango | PlayStation Portable, PlayStation Vita, Android |
| Meitantei Holmes: M-Kara no Chousenjou | adventure video game | Another | Nintendo Entertainment System |
| Melfand Stories | — | — | Super Nintendo Entertainment System |
| MELLOWOLLEM | casual game, adventure video game | — | Microsoft Windows |
| Melodier | casual game | — | Microsoft Windows, macOS |
| Meme Machine | casual game, strategy video game | — | Microsoft Windows |
| MEMENTO | adventure video game | — | Microsoft Windows |
| Memetown USA | — | — | Microsoft Windows |
| Memoria | eroge, visual novel | Purple software | Microsoft Windows |
| Memories of East Coast | visual novel | Eastasiasoft, Roomah Games, Ratalaika Games | Microsoft Windows |
| Memories Of Loneliness | casual game | — | Microsoft Windows |
| Memories Off 2nd | drama anime and manga, romance anime and manga, visual novel | — | Microsoft Windows |
| Memories Off Sōsō: Break out of my shell | visual novel | Mages | Microsoft Windows |
| Memories Off: Sorekara | drama anime and manga, visual novel | — | Microsoft Windows |
| Memories Off: Yubikiri no Kioku | bishōjo game, visual novel | 5pb. Inc. | PlayStation 3, Microsoft Windows, PlayStation Vita |
| Memory Link | — | — | Xbox Series X and Series S |
| Men of War | real-time strategy, real-time tactics | Best Way | Microsoft Windows |
| Men of War II: Arena | real-time tactics | Best Way | Microsoft Windows |
| Men of War: Assault Squad | real-time strategy, real-time tactics | Digitalmindsoft | Microsoft Windows |
| Men of War: Assault Squad 2 | real-time strategy, real-time tactics | Digitalmindsoft | Microsoft Windows |
| Meow Motors | racing video game | — | Microsoft Windows, Xbox One and Xbox Series X/S system software |
| Mercedes-Benz World Racing | racing video game | Synetic GmbH | Microsoft Windows, Nintendo GameCube |
| Merchant of the Six Kingdoms | casual game, adventure video game, strategy video game, role-playing video game | — | Microsoft Windows |
| Merchant's Rush | adventure video game, role-playing video game | — | Microsoft Windows |
| Mercury Meltdown | — | UTV Ignition Games | PlayStation Portable |
| Merek's Market | casual game, simulation video game, action game | — | Microsoft Windows |
| Merge & Blade | action game, puzzle video game | Magic Cube | Microsoft Windows, Xbox Series X and Series S |
| Merge Hero | simulation video game, adventure video game, role-playing video game | — | Microsoft Windows |
| Merlin | action game, platform game | RFX Interactive | Game Boy Color |
| Merrily Perilly | adventure video game | Squiddershins | Microsoft Windows, macOS |
| Merry Christmas Snowball Bubble | — | — | — |
| Mess Quest | simulation video game | — | Microsoft Windows |
| Metal Dungeon | — | Panther Software | — |
| Metal Eden | — | — | Microsoft Windows, Xbox Series X and Series S |
| Metal Faith | adventure video game, role-playing video game | — | Microsoft Windows |
| Metal Gear Solid | action-adventure game, stealth game | Konami | Microsoft Windows, PlayStation Portable |
| Metal Gear Solid: Portable Ops | action-adventure game | — | PlayStation Portable |
| Metal Gear Solid: Portable Ops Plus | stealth game | — | PlayStation Portable |
| Metal Gear Solid: The Legacy Collection | action-adventure game | — | PlayStation 3 |
| Metal Gear Solid: The Twin Snakes | action-adventure game | Silicon Knights | Nintendo GameCube |
| Metal Max 2 | role-playing video game | Crea-Tech | Nintendo DS, Super Nintendo Entertainment System |
| Metal Max 4: Gekkō no Diva | role-playing video game | — | Nintendo 3DS |
| Metal Slug | run and gun | — | Neo Geo, Microsoft Windows, PlayStation Portable, arcade video game machine, Android |
| Metal Slug 2 | run and gun | SNK | Neo Geo, Microsoft Windows, arcade video game machine, Android |
| Metal Slug Defense | tower defense | SNK | Microsoft Windows, Android |
| Metal Slug X | run and gun | SNK, Q122741 | Microsoft Windows, PlayStation Portable |
| Metavaxx | action game, strategy video game | — | Microsoft Windows, Linux |
| Metavusking | casual game, simulation video game, action game | — | Microsoft Windows |
| Meteor | adventure video game, action game, action-adventure game, role-playing video game, racing video game | — | Microsoft Windows |
| Meteoroids 3D | action game | — | Microsoft Windows |
| Meteos Wars | falling block puzzle game | — | — |
| Meteos: Disney Magic | puzzle video game | — | Nintendo DS |
| Metrail | — | — | Microsoft Windows, Linux |
| Metro Sim Hustle | casual game, simulation video game, adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Metro Simulator 2 | simulation video game | — | Microsoft Windows |
| Metroid Prime | first-person shooter | Retro Studios | Nintendo GameCube, Wii |
| Metroid Prime 2: Echoes | action-adventure game | Retro Studios | Nintendo GameCube, Wii |
| Metroid Prime 3: Corruption | first-person shooter | Retro Studios | Wii |
| Metroid Prime 4: Beyond | first-person shooter, Metroidvania, action-adventure game | Retro Studios | — |
| Metroid Prime: Federation Force | association football video game, first-person shooter | Next Level Games | Nintendo 3DS |
| Metropolismania 2 | real-time strategy, city-building game | — | — |
| Mezase Ero Mangaka: Watashi Shoujo Desu Kedo!? | — | — | Microsoft Windows |
| Mia's Reading Adventure: The Bugaboo Bugs | educational video game | Kutoka Interactive | Classic Mac OS, Microsoft Windows |
| Mickey Mouse: Magic Wands! | puzzle video game | Kemco | Game Boy |
| Mickey's Speedway USA | — | Rare Ltd. | Nintendo 64 |
| Micro Machines V4 | — | Supersonic Software | Microsoft Windows, Nintendo DS, PlayStation Portable |
| Micro Maniacs | — | Codemasters | — |
| Microgravity | action game | — | Microsoft Windows |
| MicroLeague Football: The Coach's Challenge | — | — | DOS |
| Microsoft Flight Simulator | flight simulation video game | Asobo Studio | Microsoft Windows, Xbox Series X and Series S |
| Microsoft Flight Simulator | flight simulation video game | — | Classic Mac OS |
| Microsoft Flight Simulator 1.0 | flight simulation video game | Sublogic | IBM PC |
| Microsoft Flight Simulator 98 | flight simulation video game | — | Microsoft Windows |
| Microsoft Flight Simulator X | flight simulation video game | Xbox Game Studios | Microsoft Windows |
| MicroWorks | party video game | — | Microsoft Windows |
| Midnight Bowling 3 | bowling video game | — | Java Platform, Micro Edition, Android |
| Midnight Club 3: DUB Edition | — | Q959329 | PlayStation Portable |
| Midnight Club: L.A. Remix | — | Rockstar London | PlayStation Portable |
| Midnight Club: Street Racing | — | Q959329 | — |
| Midnight Ghost Hunt | action game | — | Microsoft Windows |
| Midnight Mysteries: Salem Witch Trials | hidden object game | MumboJumbo | Microsoft Windows |
| Midnight School Walk | visual novel | Hautecouture | Microsoft Windows, Xbox Series X and Series S |
| Mido and Di | action game | — | Microsoft Windows |
| Midwinter | — | — | DOS, Atari ST |
| MiG Alley | — | Rowan Software | Microsoft Windows |
| Might & Magic Heroes VI | turn-based strategy video game | Limbic Entertainment, Virtuos, Black Hole Entertainment | Microsoft Windows |
| Might and Magic IV: Clouds of Xeen | role-playing video game | New World Computing | DOS |
| Might and Magic IX | role-playing video game | New World Computing | Microsoft Windows |
| Might and Magic VIII: Day of the Destroyer | role-playing video game | New World Computing | Microsoft Windows |
| Mighty Final Fight | beat 'em up, video game with LGBT character | Capcom | Nintendo Entertainment System |
| Mighty Goose | run and gun | Blastmode | Microsoft Windows, macOS, Linux |
| Mighty Gunvolt | platform game | Inti Creates | Microsoft Windows, PlayStation Vita, Nintendo 3DS |
| Mighty No. 9 | — | Inti Creates | PlayStation 3, Microsoft Windows, macOS, PlayStation Vita, Nintendo 3DS, Linux, Wii U |
| Mighty Vikings | casual game, adventure video game, action game, action-adventure game, role-playing video game | Enoops | Microsoft Windows |
| MilitAnt | — | — | Microsoft Windows |
| Military Attack | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Military Multipurpose Arcade Combat Simulator | light-gun shooter | — | Super Nintendo Entertainment System |
| Milk Race | — | — | ZX Spectrum, Amstrad CPC, MSX, Commodore 64 |
| Millie and Molly | puzzle-platformer | — | Microsoft Windows |
| Milo's Quest | adventure video game, action game, action-adventure game | lightUP | Microsoft Windows |
| Minamochi Factory | casual game, action game | — | Microsoft Windows |
| Minarchy: Active Shooter | casual game, action game, strategy video game | — | Microsoft Windows |
| Mind Quiz | educational video game | Q122741 | Nintendo DS |
| Mind Spheres | casual game, sports video game | Microblast Games | Microsoft Windows, macOS |
| Mine Fukaki Se ni Tayutau Uta | — | Eushully | Microsoft Windows |
| Minecraft Dungeons II | — | Mojang Studios, Double Eleven | Microsoft Windows, Xbox Series X and Series S |
| Minecraft Earth | augmented reality video game, sandbox game, location-based game | Mojang Studios | Android |
| Minecraft: New Nintendo 3DS Edition | survival game, sandbox game, action-adventure game | Mojang Studios, Other Ocean | — |
| Mined-Out | — | Quicksilva | Microsoft Windows |
| Miners and Machines | — | — | Microsoft Windows |
| MinerXP | — | — | Microsoft Windows |
| Mines of Volantis | adventure video game | — | Microsoft Windows |
| Minesweeper | puzzle video game | Oberon Media | Microsoft Windows |
| Mini Countries | strategy video game | — | Microsoft Windows, macOS, Linux |
| Mini Gardens - Logic Puzzle | casual game | — | Microsoft Windows |
| Mini Golf King | — | — | Android |
| Mini Mecum | simulation video game, adventure video game | — | Microsoft Windows, macOS, Linux |
| Mini Mini-Golf | casual game, simulation video game, strategy video game, sports video game | Piece Of Voxel | Microsoft Windows |
| Mini Motor Racing X | racing video game | The Binary Mill | Microsoft Windows |
| Mini Slide - Animal Race | racing video game | — | Microsoft Windows, macOS, Linux |
| Mini Trains | — | — | — |
| Minigolf Adventure | sports video game | Revulo Games | Microsoft Windows, macOS, Linux, Xbox Series X and Series S |
| Minimal Move | adventure video game | — | Microsoft Windows |
| MiniMap Kingdom | casual game, simulation video game, adventure video game, strategy video game, role-playing video game | — | Microsoft Windows |
| MINImax Tinyverse | — | — | Microsoft Windows, macOS |
| Minimum Nanonic | action-adventure game | — | PC-FX |
| Mining & Tunneling Simulator | simulation video game | — | Microsoft Windows |
| Minion Forest | — | — | Microsoft Windows |
| Minion Raid: Epic Monsters | casual game, action game, strategy video game | — | Microsoft Windows |
| Minit Fun Racer | racing video game | Jan-Willem Nijman en Kitty Calis, Jan Willem Nijman, Kitty Calis, Jukio Kallio, Dominik Johann | Microsoft Windows |
| Minna no Jōshikiryoku Terebi | quiz video game | HAL Laboratory | Wii |
| Minotron: 2112 | — | — | — |
| Miracle Sudoku | casual game, strategy video game | Studio Goya | Microsoft Windows, macOS |
| Miraculous: Rise of the Sphinx | beat 'em up, platform game | Magic Pockets | Microsoft Windows, Xbox Series X and Series S |
| Mirai Nikki: 13ninme no Nikki Shoyuusha RE:WRITE | visual novel | Kadokawa Shoten | PlayStation Portable |
| Mirror Angel's Paradise | — | — | Microsoft Windows |
| Mirror Maker | simulation video game, role-playing video game | — | Microsoft Windows |
| Mirror's Edge: Catalyst - Combat Runner Kit | action-adventure game, parkour video game | DICE | Microsoft Windows |
| MISKATONIC | action game | — | Microsoft Windows |
| Missile Command | shoot 'em up | Atari, Inc. | Microsoft Windows, Game Boy, arcade video game machine, Game Boy Color, Atari 2600, MOS Technology 6502, Atari ST, Atari 5200, Commodore 64 |
| Missile Command 3D | — | Atari | Atari Jaguar |
| MissileDancer | casual game, action game | — | Microsoft Windows |
| Mission in Snowdriftland | platform game | — | Microsoft Windows |
| Mission Of Hero | — | — | Microsoft Windows |
| Mission XAM | casual game, action game | Anamik Majumdar | Microsoft Windows, Linux |
| Mission: Impossible | — | Ocean Software | Nintendo 64 |
| Missland 2 | — | Altron | — |
| Missy's Transformation Tournament | simulation video game, adventure video game, action game, action-adventure game, strategy video game, role-playing video game | — | Microsoft Windows |
| Mists of Noyah | action game, role-playing video game | — | Microsoft Windows, Linux |
| Mitoza | adventure video game | — | Microsoft Windows, macOS |
| Mitsumete Knight R: Daibōken-hen | role-playing video game | — | — |
| Mix Hentai Girls | casual game, simulation video game, action game, role-playing video game | — | Microsoft Windows, macOS, Linux |
| Mixed-Up Mother Goose | adventure video game | Q494614 | Apple IIGS, Classic Mac OS, DOS |
| Mixx Island | casual game, action game | — | Microsoft Windows |
| Mizu no Senritsu | romance video game, visual novel | — | PlayStation Portable |
| MLB 06: The Show | baseball video game | San Diego Studio | — |
| MLB 12: The Show | baseball video game | San Diego Studio | PlayStation 3, PlayStation Vita |
| MLB 14: The Show | baseball video game | San Diego Studio | PlayStation 3, PlayStation Vita |
| MLB: The Show 17 | baseball video game | San Diego Studio | — |
| MLB: The Show 22 | baseball video game | San Diego Studio | Xbox Series X and Series S |
| MMX | — | Dnovel | Microsoft Windows |
| MOAI 7: Mystery Coast | casual game, simulation video game, strategy video game | — | Microsoft Windows |
| Mobile Suit Gundam | first-person shooter, action game | — | — |
| Mobile Suit Gundam Seed: Battle Assault | fighting game | Bandai | — |
| Mobile Suit Gundam: Lost War Chronicles | mecha video game, simulation video game | — | — |
| Model Builder | simulation video game | — | Microsoft Windows |
| Modern Combat 4: Zero Hour | first-person shooter, cyberpunk video game | Gameloft | Windows Phone, BlackBerry 10, Android |
| Modern Warships | action game | — | Android |
| Modest Eyes | casual game, adventure video game | Rosa Special Studio | Microsoft Windows, macOS, Linux |
| MODSORK | — | — | Microsoft Windows |
| Moeras | adventure video game | Sokpop Collective | Microsoft Windows, macOS |
| Molten Armor | action game, strategy video game | — | Microsoft Windows, macOS |
| Momodora II | action-adventure game, platform game | — | Microsoft Windows |
| Momodora: Reverie Under the Moonlight | Metroidvania | Bombservice | Microsoft Windows, macOS, Linux |
| Momotaro Dentetsu 11: Black Bombee Arrives | traditional video game | Hudson Soft | Nintendo GameCube |
| Momotaro Dentetsu 12: All Aboard for Western Japan! | traditional video game | Hudson Soft | Nintendo GameCube |
| Momotaro Dentetsu 7 | — | — | — |
| Momotaro Dentetsu V | — | — | — |
| Momotaro Dochuki | — | — | — |
| Moncage | casual game, simulation video game, adventure video game, strategy video game | — | Microsoft Windows, Android |
| Mondealy | adventure video game, role-playing video game | — | Microsoft Windows, Linux |
| Monica e a Guarda dos Coelhos | casual game, simulation video game, action game, strategy video game | — | Microsoft Windows, macOS |
| Monkey Island 2: LeChuck's Revenge | adventure video game | Lucasfilm Games | Classic Mac OS, Microsoft Windows, DOS, FM Towns |
| Monochrome World | casual game, action game | — | Microsoft Windows |
| Monomino | — | — | Microsoft Windows |
| Monopolist: Technological Revolution | — | — | Microsoft Windows |
| Monopoly | board video game | Artech Digital Entertainment | Classic Mac OS, Microsoft Windows |
| Monopoly Madness | board video game | Q188273, Engine Software | Microsoft Windows, Xbox Series X and Series S |
| Monster Energy Supercross - The Official Videogame 6 | supercross racing video game | Milestone S.r.l. | Microsoft Windows, Xbox Series X and Series S |
| Monster Farm | — | — | Microsoft Windows, macOS, Linux |
| Monster Garden | casual game, simulation video game, adventure video game, role-playing video game | — | Microsoft Windows, macOS |
| Monster Girl | casual game, adventure video game, role-playing video game | — | Microsoft Windows |
| Monster Girl Quest 3 | eroge | — | Microsoft Windows |
| Monster Hunter 4 Ultimate | action game | — | Nintendo 3DS |
| Monster Hunter Dynamic Hunting | fighting game | Capcom | — |
| Monster Hunter Freedom 2 | action role-playing game | Capcom | PlayStation Portable |
| Monster Hunter G | action game | Capcom | Wii |
| Monster Hunter Generations | action role-playing game | Capcom | Nintendo 3DS |
| Monster Hunter Portable 3rd | action role-playing game | Capcom | PlayStation 3, PlayStation Portable |
| Monster Hunter Puzzles: Felyne Isles | match-three video game | Capcom | Android |
| Monster Lab | — | Q389261 | Nintendo DS, Wii |
| Monster Munch | — | — | Commodore 64 |
| Monster Prom 3: Monster Roadtrip | survival game | — | Microsoft Windows, macOS, Linux |
| Monster Racers | role-playing video game, racing video game | Koei | Nintendo DS |
| Monster Rancher 4 | life simulation game | Tecmo | — |
| Monster Rancher Advance 2 | life simulation game | Tecmo | — |
| Monster Rancher DS | life simulation game | Cing | Nintendo DS |
| Monster Sanctuary | — | Moi Rai Games | Microsoft Windows, macOS, Linux |
| Monster Train | strategy video game, collectible card video game | Shiny Shoe | Microsoft Windows |
| Monster Trampoline | casual game, strategy video game | Xenofusion Studios | Microsoft Windows, Xbox Series X and Series S |
| Monster Truck Challenge | race game, truck simulation video game | — | Microsoft Windows |
| Monster Truck Drive | — | — | Microsoft Windows |
| Monster Waifu | casual game | — | Microsoft Windows |
| Monsters of Seabrook | casual game, adventure video game, role-playing video game | — | Microsoft Windows |
| Monstrous Love | casual game, adventure video game | — | Microsoft Windows, macOS, Linux |
| Monty Plays Scrabble | puzzle video game | — | TRS-80, Apple II |
| Monument Builders Rushmore | — | — | — |
| Monument Valley 2+ | — | — | — |
| Monument Valley+ | puzzle video game | Ustwo Games | — |
| Moon Child | — | Team Hoi | Microsoft Windows |
| Moon Cresta | shoot 'em up | Nichibutsu | Super Nintendo Entertainment System, ZX Spectrum, Amstrad CPC, Commodore 64 |
| Moon is Not the Limit | casual game | — | Microsoft Windows |
| Moon Mystery | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows, Xbox Series X and Series S |
| Moon Observatory Iris | simulation video game | — | Microsoft Windows, macOS, Linux |
| Moon Strike | — | Binary Innovations | ZX Spectrum |
| Moondrop | simulation video game, action game, role-playing video game | — | Microsoft Windows, Linux |
| Moonfall | role-playing video game | — | Microsoft Windows |
| Moonlighter | roguelike, business simulation game, action role-playing game | Q123173416 | Microsoft Windows, macOS, Linux |
| MoonRun | casual game, action game | — | Microsoft Windows, macOS, Linux |
| Moonshot - A Journey Home | puzzle video game | — | macOS |
| Moral King | adventure video game | — | Microsoft Windows |
| Mordheim: Warband Skirmish | — | — | Android |
| Morels: The Hunt | casual game, simulation video game, adventure video game | — | Microsoft Windows |
| Morningdew Farms: A Gay Farming Game | visual novel | Y Press Games | Microsoft Windows, macOS, Linux |
| Morpheus | — | Graftgold | Commodore 64 |
| Morrok | casual game, adventure video game | — | Microsoft Windows |
| Mortal Coil: Adrenalin Intelligence | — | — | DOS |
| Mortal Kombat 11 | fighting game | NetherRealm Studios | Microsoft Windows, Xbox Series X and Series S |
| Mortal Kombat 3 | fighting game | Midway Games | Microsoft Windows, DOS, Super Nintendo Entertainment System, Game Boy, arcade video game machine, 3DO |
| Mortal Kombat Advance | fighting game | — | — |
| Mortal Kombat Mobile | fighting game | NetherRealm Studios | Android |
| Mortal Kombat: Special Forces | action game, action-adventure game | Midway Games | — |
| Mortal Kombat: Unchained | — | Climax Studios | PlayStation Portable |
| Mortal Shell II | — | Cold Symmetry | Microsoft Windows, Xbox Series X and Series S |
| Mortyr | first-person shooter | Mirage Media S.C. | Microsoft Windows |
| Mosaics Galore | — | Creobit | Microsoft Windows, macOS |
| Mothered | adventure video game | — | Microsoft Windows, Xbox Series X and Series S |
| MOTHERGUNSHIP: FORGE | action game | — | Microsoft Windows |
| Motivational Hero | casual game, adventure video game | — | Microsoft Windows |
| Moto Racer 2 | racing video game | Delphine Software International | Microsoft Windows |
| Moto Racer World Tour | racing video game | Delphine Software International | — |
| Motocross Mania 3 | — | — | — |
| Motocross Maniacs Advance | — | — | — |
| MotoGP | racing video game | Namco | — |
| MotoGP 09/10 | — | — | PlayStation 3 |
| MotoGP 19 | racing video game | Milestone S.r.l. | Microsoft Windows |
| MotoGP 2 | — | Black Rock Studio | Microsoft Windows |
| MotoGP 21 | racing video game | Milestone S.r.l. | Microsoft Windows, Xbox Series X and Series S |
| MotoGP 25 | racing video game | Milestone S.r.l. | Microsoft Windows, Xbox Series X and Series S |
| MotoGP: Ultimate Racing Technology | — | — | Microsoft Windows, N-Gage |
| Motor Assailant | simulation video game, action game, racing video game | — | Microsoft Windows |
| Motorama | — | — | Microsoft Windows |
| Motorcycle Mechanic Simulator 2021: Prologue | casual game, simulation video game, racing video game | — | Microsoft Windows |
| MotorStorm | — | Evolution Studios | PlayStation 3 |
| Motte Island | — | — | Microsoft Windows, macOS |
| Motto Ijitte Princess: Mō! Mata Konna Tokoro de 2 | eroge, visual novel | — | Microsoft Windows |
| Moujuutsukai to Ouji-sama | otome game, visual novel | Otomate, Design Factory | PlayStation 3, PlayStation Portable, PlayStation Vita, Android |
| Mount & Blade: Warband | action role-playing game | TaleWorlds | Microsoft Windows, macOS, Linux, Android |
| Mount Farewell | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Mourning Inc. | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Mouth Sweet | — | — | Microsoft Windows, Linux |
| Movafort | adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| MOVEIT | casual game, adventure video game | Dnovel | Microsoft Windows |
| Moves | — | — | Microsoft Windows |
| Moving Out 2 | — | SMG Studio | Microsoft Windows, Xbox Series X and Series S |
| MPaliens | — | — | Microsoft Windows |
| Mr. Cool | — | — | Commodore 64 |
| Mr. Dig | — | — | TRS-80 Color Computer, Atari 8-bit family, Commodore 64 |
| Mr. Do's Castle | platform game | Universal Entertainment | ColecoVision, arcade video game machine, Atari 2600, Atari 5200, MSX, Commodore 64 |
| Mr. Parkour 2 | platform game | — | Microsoft Windows |
| Mr. Saitou | adventure video game | Laura Shigihara | Microsoft Windows, macOS, Linux |
| Mr. Wimpy | — | — | ZX Spectrum, Oric-1 |
| MTV Sports: Skateboarding Featuring Andy Macdonald | — | — | Microsoft Windows, Game Boy Color |
| MU2 | fantasy video game, massively multiplayer online game | Webzen Games | Microsoft Windows |
| Muddledash | — | — | Microsoft Windows, macOS |
| Mugsy & Mugsy's Revenge | simulation video game, action game, strategy video game | — | Microsoft Windows |
| Mugsy's Revenge | — | William Tang | ZX Spectrum |
| Mujintō Monogatari R | simulation video game, visual novel | — | Microsoft Windows |
| Mujintō Monogatari X.2001: Sugatanaki Akuma | eroge, visual novel | — | Microsoft Windows |
| Mujintō Monogatari XX | eroge, visual novel | — | Microsoft Windows |
| Mukhosransk | casual game, simulation video game, adventure video game, action game, action-adventure game, role-playing video game | Boom Games | Microsoft Windows |
| Mulle Meck builds a boat | — | — | — |
| Multia Space Program | simulation video game, adventure video game | — | Microsoft Windows |
| Multiwinia | — | Introversion Software | Microsoft Windows, macOS, Linux |
| Mumps | — | — | Microsoft Windows |
| Munchkin Digital | casual game, adventure video game, action game, action-adventure game, strategy video game, role-playing video game | Dire Wolf Digital | Microsoft Windows, macOS |
| Mundaun | adventure video game | Hidden Fields | Microsoft Windows, macOS, Xbox Series X and Series S |
| Mundus - Impossible Universe 2 | casual game, action game, strategy video game | — | Microsoft Windows |
| Murder by Numbers | — | Mediatonic | Microsoft Windows |
| Murder Diaries 3 | casual game, simulation video game | EpiXR Games | Microsoft Windows, Xbox Series X and Series S |
| Murder House | horror video game | Puppet Combo | Microsoft Windows |
| Murder in Tehran's Alleys 2016 | — | — | Microsoft Windows |
| Murder Is Game Over | adventure video game | HitherYon Games | Microsoft Windows |
| Muri | action game | — | Microsoft Windows |
| Muscle Car 2: American Spirit | arcade racing game | 3Romans | Microsoft Windows |
| Mushroom Quest | — | Flying Islands Team | Microsoft Windows |
| Musou Orochi Z | crowd-combat video game, hack and slash, crossover fiction | Koei | PlayStation 3, Microsoft Windows |
| Mutagen Extinction | adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Mutant Storm Empire | — | PomPom Games | — |
| Muv-Luv Altered Fable | eroge, visual novel | âge | Microsoft Windows |
| Muv-Luv Alternative: Total Eclipse | visual novel | — | Microsoft Windows |
| Muzzleloaded | — | — | Microsoft Windows |
| MVP Baseball 2005 | sports video game | EA Vancouver | Nintendo GameCube |
| MX vs. ATV Reflex | racing video game | Rainbow Studios | PlayStation 3, Microsoft Windows, Nintendo DS |
| MXGP 2021 | motocross racing video game | Milestone S.r.l. | Microsoft Windows, Xbox Series X and Series S |
| My Academy's Special Place | eroge, visual novel | Feng | Microsoft Windows |
| My Aunt is a Witch | — | — | — |
| My Beautiful Paper Smile | adventure video game, action game, action-adventure game | Two Star Games | Microsoft Windows |
| My Dear Prince | casual game | ebi-hime | Microsoft Windows, Linux |
| My Dream Sport Dating Simulator | — | — | Microsoft Windows |
| My First Gran Turismo | — | — | — |
| My Furry Detective | erotic video game, visual novel | Dirty Fox Games | Microsoft Windows |
| My Heart Your Soul | casual game, adventure video game, role-playing video game | — | Microsoft Windows, macOS |
| My Hero One's Justice | action game | — | Microsoft Windows |
| My Hidden Things | casual game | — | Microsoft Windows |
| My Little Sister's Special Place | eroge, visual novel | Feng, Sekai Project | Microsoft Windows |
| My Lovely Daughter | simulation video game, adventure video game | GameChanger Studio | Microsoft Windows, macOS, Linux |
| My Memory of Us | platform game | Juggler Games | Microsoft Windows |
| My Merry May with be | — | — | PlayStation Portable |
| My Neighbor Is a Yandere!? Chapter 2 | romance video game, visual novel | Maranyo Games | Microsoft Windows, macOS, Linux, Android |
| My SAT Coach | language learning video game | — | Nintendo DS |
| My Sexy Waitress | casual game, simulation video game, adventure video game | — | Microsoft Windows |
| My Talking Angela | — | Outfit7 | Android |
| My Time at Evershine | simulation video game, adventure video game, role-playing video game | Pathea Games | Microsoft Windows, Xbox Series X and Series S |
| My Time At Portia | — | Pathea Games | Microsoft Windows, Android |
| My Time at Sandrock | life simulation game, role-playing video game | Pathea Games | Microsoft Windows, Xbox Series X and Series S |
| My University Girlfriend | casual game, simulation video game, role-playing video game | — | Microsoft Windows |
| My World, My Way | role-playing video game | Global A Entertainment | Nintendo DS |
| MyHouseMyRules | adventure video game | — | Microsoft Windows |
| Myriads: Renaissance | turn-based strategy video game, 4X | — | Microsoft Windows |
| Myst V: End of Ages | adventure video game | Cyan Worlds | Classic Mac OS, Microsoft Windows, macOS |
| Mysteries of the Undead | — | — | Microsoft Windows, macOS |
| Mysterious Journey II | adventure video game | — | Microsoft Windows |
| Mysterium: A Psychic Clue Game | strategy video game | — | Microsoft Windows |
| Mystery Case Files: Black Crown | adventure video game, hidden object game, puzzle video game | Eipix Entertainment | Microsoft Windows, macOS |
| Mystery Case Files: Broken Hour | adventure video game, hidden object game, puzzle video game | Eipix Entertainment | Microsoft Windows, macOS |
| Mystery Case Files: Fate's Carnival | adventure video game, hidden object game, puzzle video game | Elephant Games | Microsoft Windows, macOS |
| Mystery Case Files: House That Love Built | adventure video game, hidden object game, puzzle video game | GrandMA Studios | Microsoft Windows, macOS |
| Mystery Case Files: Ravenhearst | adventure video game, hidden object game, puzzle video game | Big Fish Games | Microsoft Windows, macOS |
| Mystery Case Files: Shadow Lake | adventure video game, hidden object game, puzzle video game | Big Fish Games | Microsoft Windows, macOS |
| Mystery Case Files: The Countess | adventure video game, hidden object game, puzzle video game | Eipix Entertainment | Microsoft Windows, macOS |
| Mystery Case Files: The Riddle of Mrs. Bishop | adventure video game, hidden object game, puzzle video game | GrandMA Studios | Microsoft Windows, macOS |
| Mystery Lover Nonexistent Memories | visual novel | — | Microsoft Windows |
| Mystery Solitaire Grimm's Tales 2 | — | Somer Games | Microsoft Windows, macOS |
| Mystery Solitaire. Dreamcatcher 2 | — | Somer Games | Microsoft Windows |
| Mystery Solitaire. Dreamcatcher 3 | — | Somer Games | Microsoft Windows |
| Mystery Solitaire. Grimm's Tales 4 | — | Melon Games | Microsoft Windows |
| Mystic Ark: Maboroshi Gekijou | — | — | — |
| Mystic Defender | platform game | Q122741 | — |
| Mystic Pillars | casual game, adventure video game | — | Microsoft Windows |
| Mystic Saga | — | FIVE-BN | Microsoft Windows |
| Mystical Lights | casual game, adventure video game | Rosa Special Studio | Microsoft Windows, macOS, Linux |
| Myth | — | Magnetic Scrolls | DOS, ZX Spectrum, Amstrad PCW, Atari ST, Commodore 64 |
| MythForce | roguelite, first-person shooter, action-adventure game | Beamdog | Microsoft Windows, Xbox Series X and Series S |
| Mythic Ocean | adventure video game | — | Microsoft Windows |
| Mythic Pearls: The Legend of Tirnanog | hidden object game | — | Microsoft Windows |
| Mythos Ever After: A Cthulhu Dating Sim | adventure video game | Stegalosaurus Game Development | Microsoft Windows, Linux |
| Märchen Veil | action role-playing game | — | Sharp X1 |
| Mônica no Castelo do Dragão | platform game | Tectoy | — |
| Mōryō Senki Madara 2 | role-playing video game | Konami | Super Nintendo Entertainment System |