| Sonic The Hedgehog (NES) Improvement V1.0 + Music | Ti | Somari the Adventurer | Action > Platformer | NES | S | Addendum | 1.0 | 01 Dec 2016 |
| Sonic The Hedgehog (NES) Improvement V1.0 + Graphics | Terwilf | Somari the Adventurer | Action > Platformer | NES | G, O | Addendum | 1.0 | 05 Dec 2016 |
| Sonic The Hedgehog (NES) Improvement + Music and Graphics V 1.2 | FuriousHedgehog | Somari the Adventurer | Action > Platformer | NES | G, S | Addendum | 1.2 | 15 Dec 2017 |
| Sonic Improvement Vol.2 | Terwilf | Somari the Adventurer | Action > Platformer | NES | G, S, L, T | Improvement | 1.4 | 22 Oct 2020 |
| Solstice Manual Randomizer | Jp32 | Solstice: The Quest for the Staff of Demnos | Puzzle | NES | L, T | Improvement | 1.0 | 20 Jun 2018 |
| Solomon's Key - Unlocked | Aether Knight | Solomon's Key | Puzzle | NES | L, T | Complete | 1.0 | 02 Feb 2020 |
| World Cup 2002 | New Game Star | Soccer | Sports | NES | G | Complete | 1.0 | 01 Jan 2002 |
| Euro 2016 Soccer | DANGER X | Soccer | Sports | NES | G, T | Improvement | 1.0 | 02 Jul 2016 |
| Snow Brothers - Return of the King Scorch | lancuster | Snow Brothers | Action > Platformer | NES | G, L, T, O | Complete | 1.0 | 11 Jan 2017 |
| Snoopy's Silly Sports Spectacular MMC1 to MMC3 | BZK | Snoopy's Silly Sports Spectacular! | Sports | NES | O | Improvement | 001 | 05 Oct 2016 |
| Snake's Revenge - Metal Gear Title Screen | Makimura Manufacturing | Snake's Revenge | Action Adventure | NES | G | Improvement | 1.0 | 25 Dec 2010 |
| Snake's Revenge - Modernized Portraits | Arty | Snake's Revenge | Action Adventure | NES | G | Improvement | 1.0 | 07 Jan 2011 |
| Snake's Revenge - Metal Gear Font | MrRichard999 | Snake's Revenge | Action Adventure | NES | G | Improvement | 1.0 | 19 Dec 2017 |
| Auto Card and Auto Truth Gas | MagusLOGS | Snake's Revenge | Action Adventure | NES | GP | Improvement | 1.0 | 20 Dec 2018 |
| Snake's Revenge MMC5 Patch | Dracula X | Snake's Revenge | Action Adventure | NES | O | Improvement | 1.0a | 14 Jun 2020 |
| Snake Rattle N Roll Easy | chronix | Snake Rattle 'n' Roll | Action > Platformer | NES | GP | Improvement | 1.0 | 18 Nov 2018 |
| Snake Rattle 'n' Roll - Isometric D-Pad Adjustment | Quest Games | Snake Rattle 'n' Roll | Action > Platformer | NES | GP | Improvement | 1.0 | 04 Mar 2013 |
| Smash Tennis (Europe) NTSC Patch | bigboo | Smash Tennis | Sports | SNES | O | Improvement | 1.0 | 12 Mar 2017 |
| Konami`s Ping-Pong | Evgeny | Smash Ping Pong | Sports | FDS | G, O | Complete | 1.0 | 08 Nov 2020 |
| Sled Storm: HUD modification | Mr2 | Sled Storm | Racing | PSX | G | Improvement | 0.1 | 10 Mar 2019 |
