25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| sub | sub | Tony Soderlund | doom2 | 7 | 3:02 |
| sub-ep | sub-ep | Pablo Dictter & Joel Murdoch | doom | 7 | 18:57 |
| subspace | Subspace (Master Levels) | Christen Klie | doom2 | 10 | 11:39 |
| subterra | Subterra (Master Levels) | Christen Klie | doom2 | 6 | 15:34 |
| subvertd | Subverted | Pierrot | plutonia | 2 | 7:28 |
| subway | subway | The Wad Factory | doom2 | 3 | 3:07 |
| subway11 | subway11 | Greg B. | doom | 2 | 3:34 |
| subway21 | subway21 | Neal Ziring | doom | 3 | 11:00 |
| sudtic | sudtic | The Innocent Crew | doom | 49 | 5:46:20 |
| suffer | suffer | Jose Luis Gallardo | doom2 | 1 | 11:15 |
| suiciide | suiciide | Peter Hawes | doom2 | 5 | 0:52 |
| summer69 | Summer of '69 | Ribbiks & dannebubinga | doom2 | 17 | 46:25 |
| sunder | Sunder | Insane_Gazebo | doom2 | 279 | 62:54:14 |
| sunder_2407 | Sunder v2407 | Insane_Gazebo | doom2 | 20 | 28:02:53 |
| sunder_2512 | Sunder v2512 | Insane_Gazebo | doom2 | 39 | 42:55:04 |
| sungod | sungod | D. R. Duncan | doom | 4 | 29:56 |
| sunless | Sunless Empire | Various | doom2 | 20 | 5:36:06 |
| sunlust | Sunlust | Ribbiks & dannebubinga | doom2 | 1054 | 144:48:48 |
| supar1337 | supar1337 | 1337k1113rd00d | doom2 | 4 | 1:27 |
| supawar | Super War | Dqey | doom2 | 6 | 20:13 |
| superfly | superfly | Jim Jankowski | doom2 | 1 | 2:21 |
| superwad | superwad | Memfis | doom2 | 2 | 8:25 |
| supjosh | supjosh | Trar | doom2 | 2 | 0:51 |
| surge | Surge | Josh "Joshy" Sealy | doom2 | 126 | 3:03:48 |
| surge2 | Surge DM II (v2.1) | Various | doom2 | 98 | 6:54 |