The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Candidates for deletion (6 members)
- Candidates for speedy deletion (0 members)
- Characters (1 member)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Contact Service Icons (15 members)
- Contacts (2 members)
- Copyright templates (12 members)
- Crew (15 members)
- Crew Combat (8 members)
- Disambiguations (0 members)
- Documentation templates (56 members)
- Equipment (3 members)
- Event icons (55 members)
- Faction Banners (17 members)
- Faction Ships (21 members)
- Factions (13 members)
- Formatting templates (24 members)
- Front page sections (4 members)
- Game Concepts (0 members)
- Game Guide (1 member)
- Game Icons (72 members)
- Game Mechanics (11 members)
- Game World (0 members)
- Gameplay (41 members)
- Gameplay Reference (0 members)
- Guides (8 members)
- Hidden categories (0 members)
- Images (11 members)
- Images needing improvement (0 members)
- Infobox templates (6 members)
- Job Icons (28 members)
- Jobs (40 members)
- Legal notices (3 members)
- Lore (13 members)
- Media (2 members)
- Mods (13 members)
- Navigation templates (2 members)
- Notice templates (14 members)
- Operations (6 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (1 member)
- Portraits (11 members)
- Resource Icons (59 members)
- Rumors (4 members)
- Screenshots (13 members)
- Ship Art (234 members)
- Ship Combat (9 members)