| SpellWeavre | SpellWeavre ◪ | 1997-01-19 | No reviews. | 26 |
| Secret Untold, The | Dragtaur / MetaMagus | 1997-03-17 | No reviews. | 34 |
| Shock and Awe and a Whimper | pbl.fyi ◪ | 2017-04-26 | No reviews. | 36 |
| sleepdrm failure files (ver. 0.2) | KKairos ◪ | 2017-01-31 |
| 47 |
| Swords Demo | zjm ◪ | 2008-06-02 |
| 53 |
| Stuff | paulguy ◪ | 2004-10-02 |
| 55 |
| Stafen War, The (Unfinished) | Chaos88 ◪ | 2015-08-14 | No reviews. | 55 |
| Stolen Zambooboo Demo, The (ver. 1.2) | Brandon Faegre | 1996-11-27 |
| 57 |
| Shloober Stockpile 2: BrainFart | ShloobeR ◪ | 2008-01-01 |
| 57 |
| Substance | Bramble ◪ | 2009-05-04 |
| 58 |
| Star Wars: Coruscant | KidAlex | |
| 59 |
| Snowman Smash | Triterra | |
| 61 |
| Stealth Boy Demo | Fighter_Phil ◪ | 2005-03-15 |
| 61 |
| Stair Dismount | Slinky ◪ | |
| 62 |
| Super Jet Adventure | Hunter9656 | 1996-07-08 |
| 63 |
| Stemilt | Bramble ◪ | 2005-12-13 |
| 63 |
| Sid's Quest (Incomplete) | MattSplatW ◪ | 2006-10-29 | No reviews. | 63 |
| Shloober Stockpile 1: ClockTower | ShloobeR ◪ | 2008-01-01 | No reviews. | 63 |
| Smiley Knights | Triterra | |
| 64 |
| Smiley Wars Test | GetDizzy ◪ | 2004-06-10 |
| 64 |
| Silence: Revised Edition | weasel ◪ | 2007-01-15 | No reviews. | 64 |
| Space Battles | Bugspray | |
| 65 |
| Silent Death Demo | Razerboy ◪ | |
| 65 |
| Star Trip | Thundercloud ◪ | |
| 65 |
| Shadowsong 2 Demo | Tixus/Esdemo1/Wervyn | |
| 65 |
| Spooky Boi | LogiCow ◪ | 2020-10-10 | No reviews. | 65 |
| SK8 2004 Demo | Switchblade ◪ | |
| 66 |
| SmallGame (ver. 1.1) | hayashi ◪ | 2007-10-12 |
| 66 |
| Snakes 2000 | Alan Iversen | |
| 68 |
| Ski 2004 | Switchblade ◪ | |
| 68 |
| Shocked Demo | Pancake ◪ | 2006-07-22 |
| 69 |
| South Park Demo | Stewart Fullerton & James Greenwood | |
| 70 |
| Space Station (demo) | Sonic1126 ◪ | 2000-03-29 |
| 70 |
| Spy Guy | Aeon17 ◪ | |
| 70 |
| Spy Guy 2 | Aeon17 ◪ | |
| 70 |
| Silence | weasel ◪ | 2005-09-08 |
| 70 |
| S.W.A.T. | Bramble ◪ | |
| 71 |
| Some | RakiSoft | |
| 72 |
| Starforce: Space Adventure | MegaKev | |
| 72 |
| Sprite Catcher | Nanobot ◪ | 2002-09-29 |
| 72 |
| Secret Demo | Pancake ◪ | 2006-07-17 |
| 72 |
| Serrated Episode Zero: Confrontation | Pancake ◪ | 2006-06-14 |
| 72 |
| SaintZZT 7th DX (ver. 1.2) | RinGames ◪ | 2014-12-31 | No reviews. | 72 |
| Shadowed | Joseph Toscano | 1997-01-01 |
| 74 |
| Super ADVenture: The Journey Home (ver. 2.3) | STRIKESOFT | 1996-01-27 |
| 74 |
| Savager Hunt | ZZTurbo | |
| 74 |
| Squirm Wars 2 (Demo) | T-Bone ◪ | 2006-06-17 |
| 74 |
| Seamus' Bad Day | NoahSoft / Jessie | 2006-10-02 |
| 74 |
| Starflight Mzx Combat Demo (ver. 1.52) | Risu2112 ◪ | 2019-01-13 | No reviews. | 74 |
| Stix Demo (ver. 2) | Glynth | 1999-10-21 | No reviews. | 75 |
