The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Agent (1 member)
- Agent Art (25 members)
- Agents (4 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Concept art (0 members)
- Copyright templates (13 members)
- Disambiguations (0 members)
- Documentation templates (5 members)
- Fan art (0 members)
- Formatting templates (19 members)
- Game Art (2 members)
- Help (0 members)
- Hero (1 member)
- Heroes (5 members)
- Hidden categories (10 members)
- Icons (4 members)
- Images (7 members)
- Images needing improvement (0 members)
- Infobox templates (0 members)
- Key Traits (1 member)
- Legal notices (3 members)
- Locations (3 members)
- Media (2 members)
- Minions (1 member)
- Modding (1 member)
- Notice templates (15 members)
- Old One Art (9 members)
- Old Ones (11 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (0 members)
- Politics (2 members)
- Portrait Art (1 member)
- Race (3 members)
- Races (9 members)
- Real World (5 members)
- Scenarios (3 members)
- Screenshots (37 members)
- Stubs (2 members)
- Template documentation (24 members)
- Template images (0 members)
- Templates (16 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- That Which Sleeps (43 members)
- That Which Sleeps Wiki (8 members)