| Name | Type | Category |
|---|---|---|
| Slost | wiki | Planets |
| So-Kla | wiki | Asbaran Solutions |
| Sol | wiki | Star Systems |
| Sommerkorn, Chris | wiki | Characters |
| Sommerkorn, Chris | wiki | From the Books |
| Sommerkorn, Chris | wiki | Cartwright's Cavaliers |
| Sommerkorn, Chris | wiki | Tuckerized People |
| Spade | wiki | Characters |
| Spivey, Jonathan | wiki | Asbaran Solutions |
| Splunk | wiki | Cartwright's Cavaliers |
| Splunk | wiki | Aliens |
| Stackhouse, Gerald | wiki | Cartwright's Cavaliers |
| Stallings, Mark | wiki | Bjorn's Berserkers |
| Stargates | wiki | Technology |
| Startown | wiki | Galactic Areas |
| Stel-Ca | wiki | Blood Drinkers |
| Stem-class Light Cruisers | wiki | Ship Classes |
| Streetho | wiki | Aliens |
| Strike Cruiser | wiki | Ship Designations |
| Sulaad | wiki | Races |
| Sulaadar | wiki | Star Systems |
| Sulaadar | wiki | Planets |
| Sumatozou | wiki | Mercenary Races |
| T’jto | wiki | Winged Hussars |
| Tahcarran | wiki | Tahrietha Trackers |