| Mario Mafia 2 | JGW | Super Mario Bros. | Action > Platformer | NES | G, L, GP | Complete | 1.0 | 01 Jan 2006 |
| Mario Kart: Super Circuit - Localized Voices | Emilianomario27 | Mario Kart: Super Circuit | Racing | GBA | S | Improvement | 1.0 | 21 Feb 2020 |
| Mario Kart SX Shortcut Bugfixes | BlueYoshi | Super Mario Kart | Racing | SNES | L | Addendum | 1.0 | 17 May 2020 |
| Mario Kart SX | DarthMarino | Super Mario Kart | Racing | SNES | G, L, T | Complete | 2.5 | 27 Aug 2021 |
| Mario Kart Super Circuit - Sound Improvement | RunTheCoins | Mario Kart: Super Circuit | Racing | GBA | S | Improvement | 1.0 | 22 Apr 2022 |
| Mario Kart R | d4s | Super Mario Kart | Racing | SNES | G, S, L, T | Complete | 1.1 | 23 Mar 2004 |
| Mario kart 64 Randomized | Seohaine | Mario Kart 64 | Racing | N64 | G, S, L, T, GP, O | Improvement | 1.0.2 | 19 Jul 2021 |
| Mario Kart 64 Mega Mushroom Blast | Seohaine | Mario Kart 64 | Racing | N64 | G, S, L, T, GP, O | Improvement | 1.0 | 01 May 2022 |
| Mario Kart 64 Hot Potato Battle | triclon | Mario Kart 64 | Racing | N64 | GP | Improvement | 1.1 | 14 Apr 2020 |
| Mario Kart 64 CPUs use human items including shells | triclon | Mario Kart 64 | Racing | N64 | GP | Improvement | 2.7 | 28 Dec 2021 |
| Mario Kart 64 - Stomper Mod | Litronom | Mario Kart 64 | Racing | N64 | G, S, GP | Complete | 1.1 | 15 Jul 2021 |
| Mario Kart | pacnsacdave | R.C. Pro-Am | Racing | NES | G, S, T, GP | Complete | 1.0 | 26 May 2019 |
| Mario is Missing Done Right | Gamma V | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 1.1 | 23 Jul 2017 |
| Mario is Missing 2: Luigi's New Adventure | Link2006 | Super Mario World | Action > Platformer | SNES | G, L | Complete | 1.3 | 04 Nov 2005 |
| Mario Is Lost On Mystic Island | teeporage777 | Super Mario Bros. | Action > Platformer | NES | G, S, L, T, GP | Complete | 1.0 | 13 Dec 2017 |
| Mario is Back! | RetroReality | Super Mario Bros. | Action > Platformer | NES | G, L | Complete | 1.0 | 23 Apr 2018 |
| Mario is a Drug Addict | Marvin C | Super Mario RPG: Legend of the Seven Stars | Role Playing | SNES | G, S, L, T, GP, O | Complete | 1.1 | 28 May 2011 |
| Mario In: Time Is Ticking | Googie | Super Mario Bros. | Action > Platformer | NES | G, S, L, T | Complete | 1.0 | 12 Oct 2007 |
| Mario in: Some Usual Day | JaSp | Super Mario Bros. 3 | Action > Platformer | NES | G, S, L, T | Complete | 1.1 | 25 Oct 2005 |
| Mario in Leprechaun Island | Green Jerry | Super Mario World | Action > Platformer | SNES | G, S, L, T | Complete | 1.0.1 | 17 Mar 2020 |
