| Lot Lot | 1985 | nes |
| Love Hina - Totsuzen no Engage Happening | 2000 | dreamcast |
| Lu-Hai-Kong Dazhan | | gba |
| Luanshi Sanguo | | nes |
| Lucadian Chronicles | 2014 | wiiu |
| Luftwaffe - Deutsch Kuugun o Shiki seyo | 1999 | ps1 |
| M.U.L.E | 1990 | nes |
| Mad Games Tycoon | 2019 | ps4, xboxone |
| Mad Tower Tycoon | 2020 | ps4 |
| Maeh Jongg DS | 2004 | nds |
| Maerchen Club | 1992 | gb |
| Magic - The Gathering | 2001 | dreamcast |
| Magic - The Gathering - BattleMage | 1997 | ps1 |
| Magic - The Gathering - Duels of the Planeswalkers 2012 | 2011 | ps3, xbox360 |
| Magic - The Gathering - Duels of the Planeswalkers 2013 | 2012 | ps3, xbox360 |
| Magic - The Gathering - Duels of the Planeswalkers 2014 | 2013 | ps3 |
| Magic Bubble | 1991 | nes |
| Magical Drop for WonderSwan | 1999 | ws |
| Mahjang Companion | 1990 | nes |
| Mahjong Cop Ryuu - Shiro Ookami no Yabou | 1989 | genesis |
| Mahjong Taikai | 1989 | nes |
| Mahjong Taikai IV | 2006 | ps3 |
| Maison de Maou | 2016 | vita |
| Majin Tensei | 1994 | snes |
| Majin Tensei II - Spiral Nemesis | 1995 | snes, wii |
| Majokko Cream-chan no Gokko Series 1 - Wannyan Idol Gakuen | 2003 | gba |
| Majokko Cream-chan no Gokko Series 2 - Kisekae Angel | 2004 | gba |
| Makai Kingdom - Chronicles of the Sacred Tome | 2005 | ps2 |
| Man Overboard! | 1994 | gg |
| Manager de Liga | 1999 | ps1 |
| Manager de Liga 2002 | 2001 | ps1 |
| Manga-ka Debut Monogatari - Akogare! Manga Ka Ikusei Game! | 2002 | gba |
| Marie, Elie & Anis no Atelier - Soyokaze kara no Dengon | 2003 | gba |
| Mario no Super Picross | 1995 | snes |
| Marmalade Boy | 1995 | gb |
| Mars Horizon | 2020 | ps4, switch, xboxone |
| Marvel Trading Card Game | 2007 | psp |
| Massive Chalice | 2015 | xboxone |
| Master of Monsters | 1991 | genesis, pcengine |
| Master of Monsters - Akatsuki no Kenjatachi | 1997 | ps1 |
| Master of Monsters - Disciples of Gaia | 1998 | ps1 |
| Master of Monsters - Neo Generations | 1996 | saturn |
| Masters of Anima | 2018 | ps4, xboxone |
| Matching Maker | 2001 | ps2 |
| Matching Maker 3 x Tousouchuu | 2010 | psp |
| Mato Kurenai Yuugekitai - Daybreak Special Gigs | 2015 | ps3 |
| Matsumoto Tooru no Kabushiki Hisshou Gaku | 1989 | nes |
| Matsumoto Tooru no Kabushiki Hisshou Gaku - Part II | 1989 | nes |
| Maxi 15 | 1992 | nes |
| Maxi-15 Pack | 1992 | nes |
| Maya the Bee & Her Friends | 2000 | gbc |
| Mayan Death Robots: Arena | 2017 | xboxone |
| McDroid | 2016 | ps4 |
| Mech Platoon | 2001 | gba |
| The MechSmith - Run=Dim | 2000 | ps2 |
| Mecho Wars - Desert Ashes | 2018 | switch, vita |
| Medarot Cardrobottle - Kabuto Version | 2000 | gbc |
| Medarot Cardrobottle - Kuwagata Version | 2000 | gbc |
| Medieval Defenders | 2015 | vita |
| Mega Man Battle Network 5 - Team Colonel | 2015 | wiiu |
| Mega Schwarzschild | 1993 | segacd |
| Mega lo Mania - Jikuu Daisenryaku | 1993 | snes |
| Mega-lo-Mania | 1993 | genesis, snes |
| Megaman - Battle Network 4 - Blue Moon | 2004 | gba, wiiu |
| Megaman - Battle Network 5 - Team Protoman | 2004 | gba |
| Megaman - Battle Network 6 - Cybeast Gregar | 2005 | gba |
| Megami Paradise II | 1996 | pcfx |
| Meimon! Takonishi Ouendan - Kouha 6 Nin Shuu | 1989 | nes |
| Mendel Palace | 1990 | nes |
| Mengnake Huangzu - Zuizhong Zhandou Chuanshuo | 1994 | genesis |
| Mermaids of Atlantis - The Riddle of the Magic Bubble | 1991 | nes |
| Meru Purana | 1996 | ps1 |
| Metakomi Theraphy - Nee Kiite! | 2000 | ws |
| Metal Gear Ac!d | 2004 | psp |
| Metal Gear Ac!d 2 | 2005 | psp |
| Metal Gear Acid | 2005 | psp |
| Metal Marines | 1993 | snes |
| Metal Marines | 2007 | wii |
| Metal Marines | 2015 | wiiu |
| Metropolismania | 2002 | ps2 |
| Metropolismania 2 | 2006 | ps2 |
| Mezamashi TV - 10th Anniversary - Kyou no Wanko | 2003 | ps2 |
| Mickey's Ultimate Challenge | 1994 | genesis, sms, snes |
| Might & Magic - Duel of Champions - Forgotten Wars | 2014 | ps3, xbox360 |
| Military History - Commander - Europe at War | 2009 | nds |
| Military History - Commander - Europe at War | 2009 | psp |
| Military Madness | 1989 | pcengine |
| Military Madness - Nectaris | 2009 | ps3, wii, xbox360 |
| Militia | 1994 | snes |
| Militia | 2014 | wii |
| Militia | 2015 | wiiu |
| Minecraft Legends | 2023 | switch |
| Mines of Minos | 1982 | a2600 |
| Mini 4 Boy | 1996 | gb |
| Mini 4 Boy II | 1997 | gb |
| Mini Moni. - Onegai Ohoshi-sama! | 2002 | gba |
| Mini Yonku GB Let's & Go!! | 1997 | gb |
| Mini Yonku GB Let's & Go!! - All-Star Battle Max | 1998 | gb |
| Minna no Doubutsuen | 2009 | nds |
| Mizuki Shigeru no Shin Youkaiden | 2001 | gbc |