| Somnambulist | Bramble ◪ | 2023-12-05 | No reviews. | 51 |
| Sonic Jam (ver. 0.8) | Zdrmonster1 ◪ | 2021-11-30 |
| 130 |
| Spooky Boi | LogiCow ◪ | 2020-10-10 | No reviews. | 74 |
| Starflight MZX (Project Dump) | Risu2112 ◪ | 2019-01-28 | No reviews. | 97 |
| Starflight Mzx Combat Demo (ver. 1.52) | Risu2112 ◪ | 2019-01-13 | No reviews. | 76 |
| Shock and Awe and a Whimper | pbl.fyi ◪ | 2017-04-26 | No reviews. | 38 |
| sleepdrm failure files (ver. 0.2) | KKairos ◪ | 2017-01-31 |
| 52 |
| Shadow Hunters | Chaos88 ◪ | 2015-08-18 | No reviews. | 77 |
| Stafen War, The (Unfinished) | Chaos88 ◪ | 2015-08-14 | No reviews. | 61 |
| SaintZZT 7th DX (ver. 1.2) | RinGames ◪ | 2014-12-31 | No reviews. | 72 |
| Spaceman Jones in: Ordeal on Glaxnard XIV (ver. 1.85) | KKairos ◪ | 2014-01-24 |
| 188 |
| Snake Slayer 2013 (ver. 1.1) | KKairos ◪ | 2013-12-26 |
| 140 |
| Silence in the Theater | ThDPro ◪ | 2012-08-03 | No reviews. | 102 |
| Spirit Quest (ver. 2.0) | ThDPro ◪ | 2012-07-24 | No reviews. | 115 |
| SATAN | Baby Bonnie Hood ◪ | 2012-07-06 | No reviews. | 88 |
| Stronghold Demo | Jauhis ◪ | 2010-01-31 |
| 165 |
| Some Stupid Quests (ver. 2) | Kuddy ◪ | 2010-01-15 |
| 94 |
| Sudoku Simulator | nooodl ◪ | 2009-06-03 | No reviews. | 93 |
| Substance | Bramble ◪ | 2009-05-04 |
| 62 |
| SimStapler HD | hayashi ◪ | 2009-01-21 |
| 86 |
| SimStapler | weasel ◪ | 2009-01-20 |
| 103 |
| Swords Demo | zjm ◪ | 2008-06-02 |
| 56 |
| STAN | hob nado ◪ | 2008-01-08 |
| 78 |
| Shloober Stockpile 2: BrainFart | ShloobeR ◪ | 2008-01-01 |
| 59 |
| Shloober Stockpile 1: ClockTower | ShloobeR ◪ | 2008-01-01 | No reviews. | 66 |
| SmallGame (ver. 1.1) | hayashi ◪ | 2007-10-12 |
| 70 |
| Silence: Revised Edition | weasel ◪ | 2007-01-15 | No reviews. | 68 |
| Slave Pit | CHEZZY ◪ | 2006-12-31 |
| 183 |
| Shooting Game Demo | Nytar ◪ | 2006-12-16 |
| 86 |
| Super Mario for MZX Demo (ver. 1.26) | T-Bone ◪ | 2006-12-03 | No reviews. | 189 |
| Stupid Tournament | hob nado ◪ | 2006-11-14 |
| 179 |
| Sid's Quest (Incomplete) | MattSplatW ◪ | 2006-10-29 | No reviews. | 64 |
| Seamus' Bad Day | NoahSoft / Jessie | 2006-10-02 |
| 78 |
| Shocked Demo | Pancake ◪ | 2006-07-22 |
| 73 |
| Secret Demo | Pancake ◪ | 2006-07-17 |
| 75 |
| Super Mario Miniatures Demo | T-Bone ◪ | 2006-06-20 |
| 114 |
| Squirm Wars 2 (Demo) | T-Bone ◪ | 2006-06-17 |
| 76 |
| Serrated Episode Zero: Confrontation | Pancake ◪ | 2006-06-14 |
| 75 |
| Sacred Gem Demo | Pancake ◪ | 2006-05-29 |
| 85 |
| Short-Lived Adventures of Hobo Dan, The | hob nado ◪ | 2005-12-15 |
| 330 |
| Stemilt | Bramble ◪ | 2005-12-13 |
| 65 |
| Silence | weasel ◪ | 2005-09-08 |
| 77 |
| Slider Puzzle | RatoN ◪ | 2005-06-06 | No reviews. | 81 |
| SPECIAL QUEST! | Kuddy ◪ | 2005-04-01 |
| 165 |
| Stealth Boy Demo | Fighter_Phil ◪ | 2005-03-15 |
| 66 |
| Stuff | paulguy ◪ | 2004-10-02 |
| 58 |
| Smiley Wars Test | GetDizzy ◪ | 2004-06-10 |
| 68 |
| Stones and Roks (ver. 1.3) | zombieguy ◪ | 2003-11-01 | No reviews. | 88 |
| Stones and Roks II | zombieguy ◪ | 2003-05-03 |
| 91 |
| Servo | Graham ◪ | 2003-04-20 | No reviews. | 92 |
