| Sky Mario Bros. 3 | akaTrickster | Super Mario Bros. 3 | Action > Platformer | NES | G, L | Complete | 1.0 | 28 May 2017 |
| Sky's Zombies Ate My Neighbors Hack | Skylar Brock | Zombies Ate My Neighbors | Action | SNES | L | Complete | 6.0 | 08 Jun 2017 |
| Slap Fight MD - Pink Bullet hack - | upsilandre | Slap Fight MD | Action > Shooter | GEN | G | Improvement | 1.0 | 17 Nov 2017 |
| Sled Storm: HUD modification | Mr2 | Sled Storm | Racing | PSX | G | Improvement | 0.1 | 10 Mar 2019 |
| Sliders 5.5 | Jim Johnson | Final Fantasy | Role Playing | NES | T | Complete | 1.0 | 20 Dec 1999 |
| Slot-2 Patch | Prof. 9 | Mega Man ZX | Action > Platformer | NDS | L | Improvement | 1.0 | 19 Aug 2019 |
| SM64 Level Scaling Test Room | IllumiNavi | Super Mario 64 | Action > Platformer | N64 | G, L | Complete | 1.0 | 12 Jul 2014 |
| SM64DS - Donkey Kong in Super Mario 64 DS | Russmarrs2 | Super Mario 64 DS | Action > Platformer | NDS | G, GP | Improvement | 1.0 | 01 Sep 2015 |
| SM64DS - Waluigi in Super Mario 64 DS | Russmarrs2 | Super Mario 64 DS | Action > Platformer | NDS | G | Improvement | 2 | 24 Oct 2015 |
| SMA2 - Super Mario World Color Restoration | Asaki | Super Mario World: Super Mario Advance 2 | Action > Platformer | GBA | G | Improvement | 0.91 | 07 Nov 2008 |
| SMA4 Game Boy Player/SNES Palette Hack | Vague Rant | Super Mario Advance 4: Super Mario Bros. 3 | Action > Platformer | GBA | G | Improvement | 1.02 | 20 Feb 2017 |
| SMAS + SMW Improvement | The_Lunatic_IPS | Super Mario All-Stars + Super Mario World | Action > Platformer | SNES | G | Improvement | 1.2 | 14 Sep 2020 |
| SMAS Improvement Hack | ShadowOne333 | Super Mario All-Stars | Action > Platformer | SNES | G | Improvement | 1.2 | 03 Oct 2020 |
| SMAS SMB/Lost Levels Brick Fix | BMF54123 | Super Mario All-Stars | Action > Platformer | SNES | S, GP | Bug Fix | 1.1 | 26 Oct 2006 |
| SMAS+W - Title Screen Mod | DarkSamus993 | Super Mario All-Stars + Super Mario World | Action > Platformer | SNES | G | Improvement | 1.1 | 25 Aug 2016 |
| SMAS+W SMB2 Classic Overalls | TRIFORCE89 | Super Mario All-Stars + Super Mario World | Action > Platformer | SNES | G | Improvement | 1.0 | 01 Oct 2020 |
| Smash Bros. | emotionengine | Kart Fighter | Action > Fighting | NES | G, T | Improvement | 1.0 | 01 Aug 2016 |
| Smash Tennis (Europe) NTSC Patch | bigboo | Smash Tennis | Sports | SNES | O | Improvement | 1.0 | 12 Mar 2017 |
| SMB - Mario In Zebes | Slimeous | Super Mario Bros. | Action > Platformer | NES | G, L, T, GP | Complete | 1.0 | 25 Feb 2004 |
| SMB 1+2 Super Crowned - Toadette ver. | Kazufox | Super Mario Bros. | Action > Platformer | NES | G, T, O | Improvement | 1.0 | 24 Sep 2020 |
