| Song of the Angel | Translation Corporation | Role Playing | SNES | Announced | | None | EN |
| Sonic Eraser | D | Puzzle | GEN | Fully Playable | 1.0 | 28 Feb 2004 | EN |
| SonSon II | Sgt. Bow Hack | Action > Platformer | TG16 | Unfinished | 1.0b | 15 Nov 1997 | EN |
| Sorcerian | Naflign's Ego | Role Playing | GEN | Unfinished | 001 | 05 Sep 1999 | EN |
| Sorcerian | SSTranslations | Role Playing | GEN | Unfinished | 0.5 | 24 Jul 2009 | EN |
| Sore Ike! Anpanman - Minna de Hiking Game! | Pope Hentai's Rom Hacking Fun! | Boardgame | NES | Unfinished | 0.99 | 12 Aug 2004 | EN |
| Soul Getter: Houkago Bouken RPG | MageCraft Translations | Role Playing | GB | Unfinished | 0.10 | 28 Oct 2000 | EN |
| Space Fantasy Zone | Naflign's Ego | Action > Shooter | TGCD | Unfinished | a01 | 20 Sep 2000 | EN |
| Space Squash | Feel | Sports | VB | Unfinished | 1.0 | 07 Aug 2007 | EN |
| Spartan X 2 | Abstract Crouton Productions | Action | NES | Fully Playable | 1.0 | 07 Mar 2003 | EN |
| Spelunker II: Yuushahe no Chousen | Sarysa | Role Playing > Action RPG | NES | Fully Playable | 0.9 | 20 Mar 2003 | EN |
| Spelunker II: Yuushahe no Chousen | Stardust Crusaders | Role Playing > Action RPG | NES | Fully Playable | 1.0 | 18 Feb 2011 | EN |
| Splatterhouse: Wanpaku Graffiti | Spinner 8 and friends | Action | NES | Fully Playable | 2.0 | 07 Jan 2000 | EN |
| Sqoon | Stardust Crusaders | Action > Shooter | NES | Fully Playable | 1.0 | 19 Feb 2010 | EN |
| Square no Tom Sawyer | Kikuyama | Role Playing | NES | Unfinished | 0.07 | 10 Dec 1998 | EN |
| Squashed | HTI | Action > Platformer | NES | Fully Playable | 1.00 | 19 Nov 2002 | EN |
| Standard Daisenryaku: Shiwareta Shouri | Nebelwurfer HQ | Strategy | PS2 | Unfinished | 0.60 | 18 May 2012 | EN |
| Star Fox 2 | Aeon Genesis | Action > Shooter | SNES | Fully Playable | 1.00 | 17 Oct 2004 | EN |
| Star Ocean | Chief Ug | Role Playing | SNES | Unfinished | 0.04 | 05 Jul 2001 | EN |
| Star Ocean | Cidolfas | Role Playing | SNES | Unfinished | 1.3 | 07 Nov 2001 | EN |
