Title  | Released By | Original Game | Genre | Platform | Mods | Category | Ver | Date |
|---|---|---|---|---|---|---|---|---|
| Marusa no Onna Plastic surgery | Gigan | Marusa no Onna | Adventure | NES | G | Complete | 1.0 | 23 Oct 2021 |
| Mart Bart | MB Productions | Super Mario Bros. | Action > Platformer | NES | L, T | Complete | 1.01 | 07 Jul 2020 |
| Marshall Law | Szemigi | Tekken 3 | Action > Fighting | PSX | G, O | Improvement | full | 05 Mar 2020 |
| Mark McGwire Bros. | Googie | Super Mario Bros. | Action > Platformer | NES | G, S, L, T | Complete | 1.0 | 03 Jul 2017 |
| Marisa no Meitantei | Gigan | Sanma no Meitantei | Adventure | NES | G, T | Improvement | 1.1 | 03 Apr 2022 |
| Marippy | DASTARD | Mappy | Action > Platformer | NES | G, T | Improvement | 1.0 | 01 Dec 2007 |
| Mario’s Treasure Hunt | Googie | Atlantis no Nazo | Action > Platformer | NES | G | Improvement | 1.0 | 10 Mar 2006 |
| MarioVania: Dawn of Sorrow / Super Mario in Castlevania: Dawn of Sorrow | Shametal | Castlevania: Dawn of Sorrow | Role Playing > Action RPG | NDS | G, S, L, T, GP | Complete | 6.6 | 07 Mar 2023 |
| Marios 100s Challenge | Jp32 | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 2.1 | 06 Jan 2016 |
| Mario's Treasure Hunt 2 | Maik | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 1.0 | 04 May 2012 |
| Mario's Relay | Project Recovery | Super Mario Bros. | Action > Platformer | NES | G, L, T | Complete | 1.0 | 01 Jan 2000 |
| Mario's Picross X | Ross Adkin (TidusRenegade) | Mario's Picross | Puzzle | GB | L, T | Complete | v1.0 | 08 Aug 2018 |
| Mario's Nightmare Edition | X-Hackers | Super Mario Bros. 2 | Action > Platformer | NES | G, S | Improvement | 1.0 | 19 Aug 2002 |
| Mario's Nightmare 64 | Apioeus | Super Mario 64 | Action > Platformer | N64 | G, S, L, T | Complete | 1.1 EN | 23 Jul 2013 |
| Mario's New Year Mini Quest | Green Jerry | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP | Complete | 1.2 | 06 Feb 2021 |
| Mario's Moonlight Adventure | teeporage777 | Super Mario Bros. | Action > Platformer | NES | G, L, T, GP | Complete | 1.0 | 13 Jun 2017 |
| Mario's Moon Adventure | Romulus | Super Mario Bros. | Action > Platformer | NES | G, L, T | Complete | 1.0 | 24 Feb 2000 |
| Mario's Mansion | Nintendo 64 Wizard | Luigi's Mansion | Action Adventure | GC | G, S, T | Improvement | 1.0 | 30 May 2021 |
| Mario's Keep CO-OP | NesDraug | Super Mario Bros. | Action > Platformer | NES | G, L, T, GP, O | Complete | 1.00 | 22 Apr 2021 |
| Mario's Keep | NesDraug | Super Mario Bros. | Action > Platformer | NES | G, S, L, T, GP | Complete | 1.3 | 07 Apr 2021 |
