| Skateboard Dudes | Aeon17 ◪ | |
| 113 |
| Spy Guy | Aeon17 ◪ | |
| 100 |
| Spy Guy 2 | Aeon17 ◪ | |
| 89 |
| SMZX Tetris | Akwende ◪ | | No reviews. | 142 |
| Snakes 2000 | Alan Iversen | |
| 92 |
| SATAN | Baby Bonnie Hood ◪ | 2012-07-06 | No reviews. | 104 |
| Smiley Fighter | Ben Sargo | |
| 108 |
| SEU | BiGBuBBa ◪ | | No reviews. | 117 |
| Shining Billy | Billy of America | 1998-06-00 |
| 114 |
| S.W.A.T. | Bramble ◪ | 2004-03-02 |
| 96 |
| Stemilt | Bramble ◪ | 2005-12-13 |
| 77 |
| Substance | Bramble ◪ | 2009-05-04 |
| 80 |
| Somnambulist | Bramble ◪ | 2023-12-05 | No reviews. | 72 |
| Stolen Zambooboo Demo, The (ver. 1.2) | Brandon Faegre | 1996-11-27 |
| 82 |
| Super Chuck | Brian Palmer | |
| 107 |
| Space Battles | Bugspray | |
| 90 |
| Super World | Bugspray | |
| 101 |
| Smash Time | Castlevania ◪ | |
| 228 |
| Stafen War, The (Unfinished) | Chaos88 ◪ | 2015-08-14 | No reviews. | 75 |
| Shadow Hunters | Chaos88 ◪ | 2015-08-18 | No reviews. | 97 |
| Snarfoogle | cheezit200 ◪ | 1998-01-04 |
| 370 |
| Snarfoogle 2: Warp (ver. Demo 2) | cheezit200 ◪ | 1998-01-15 |
| 175 |
| Slave Pit | CHEZZY ◪ | 2006-12-31 |
| 224 |
| Slimed! Demo (ver. 0.3) | Creator | |
| 122 |
| Seiken Densetsu: Blade of Islan | djtiesto ◪ | 1997-08-14 |
| 255 |
| Secret Untold, The | Dragtaur / MetaMagus | 1997-03-17 | No reviews. | 63 |
| Search, The | Easton Blue ◪ | 2001-11-04 |
| 122 |
| Second Search, The | Easton Blue ◪ | 2002-01-02 | No reviews. | 104 |
| Spongko's Legendary Journey Demo | Eon Entertainment | |
| 232 |
| Stealth Boy Demo | Fighter_Phil ◪ | 2005-03-15 |
| 82 |
| Shadowblade | Fred ◪ | |
| 100 |
| Smiley Wars Test | GetDizzy ◪ | 2004-06-10 |
| 91 |
| Stix Demo (ver. 2) | Glynth | 1999-10-21 | No reviews. | 97 |
| Servo | Graham ◪ | 2003-04-20 | No reviews. | 107 |
| SmallGame (ver. 1.1) | hayashi ◪ | 2007-10-12 |
| 89 |
| SimStapler HD | hayashi ◪ | 2009-01-21 |
| 106 |
| Short-Lived Adventures of Hobo Dan, The | hob nado ◪ | 2005-12-15 |
| 378 |
| Stupid Tournament | hob nado ◪ | 2006-11-14 |
| 208 |
| Super Jet Adventure | Hunter9656 | 1996-07-08 |
| 89 |
| Steamed Hams but it's a Megazeux game | inmate2993 ◪ | 2025-09-23 | No reviews. | 44 |
| Simply Psycho | Jairska | 1995-11-22 |
| 117 |
| Stronghold Demo | Jauhis ◪ | 2010-01-31 |
| 194 |
| Shadowed | Joseph Toscano | 1997-01-01 |
| 94 |
| Star Wars | Joshua Booth | |
| 109 |
| Siphrian | Kayin/RoSS/Koji | 2001-07-21 |
| 109 |
| Star Wars: Coruscant | KidAlex | |
| 85 |
| Survival Challenge, The | KirbySSB ◪ | 2002-11-19 |
| 130 |
| Snake Slayer 2013 (ver. 1.1) | KKairos ◪ | 2013-12-26 |
| 175 |
| Spaceman Jones in: Ordeal on Glaxnard XIV (ver. 1.85) | KKairos ◪ | 2014-01-24 |
| 230 |
| sleepdrm failure files (ver. 0.2) | KKairos ◪ | 2017-01-31 |
| 70 |
