The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Played by Zanderia (3 members)
- Played by t0l (4 members)
- Plots for Angelic Sins (0 members)
- Plots for Embers of Soteria (0 members)
- Political culture (1 member)
- Political ideologies (1 member)
- Political ideology sidebar templates (1 member)
- Pride (1 member)
- Propulsion (0 members)
- Propulsion (FTL) (10 members)
- Propulsion (Sublight) (4 members)
- Propulsion (Temporal) (2 members)
- Psychological concepts (1 member)
- Psychological theories (1 member)
- Psychology navigational boxes (3 members)
- Psychology sidebar templates (2 members)
- Psychology stub templates (1 member)
- Races (18 members)
- Redirects from shortcuts (2 members)
- Redirects from template shortcuts (15 members)
- Redirects to Wikipedia project pages (1 member)
- Redirects to project space (1 member)
- Reference list templates (1 member)
- Robotics (16 members)
- Romulan Star Empire Territory (2 members)
- Scientific Theories (5 members)
- Section 31 (4 members)
- Sector Stubs (6 members)
- Self (7 members)
- Self-control (0 members)
- Serenity Concord (7 members)
- Serenity Concord Territory (9 members)
- Set index article templates (1 member)
- Sex and sexuality navigational boxes (1 member)
- Sidebars with styles needing conversion (9 members)
- Sigma Tamelos Sector (12 members)
- Social concepts (1 member)
- Social ideologies (1 member)
- Social psychology (2 members)
- Social theories (1 member)
- Sociological theories (1 member)
- Solas Tempus (55 members)
- Solas Tempus Characters (40 members)
- Solas Tempus Military Actions (2 members)
- Solas Tempus Non-Player Characters (55 members)
- Solas Tempus Reports (8 members)
- Solas Tempus Vessels and Facilities (84 members)
- Sources of Inspiration (3 members)
- Space Anomalies (7 members)
- Space Sectors (22 members)