The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Above the Fold (38 members)
- Above the Fold Wiki (7 members)
- Advertisers (3 members)
- Awards (0 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (5 members)
- Copyright templates (12 members)
- Disambiguations (0 members)
- Documentation templates (3 members)
- Features (25 members)
- Formatting templates (20 members)
- Front page sections (3 members)
- Guides (28 members)
- Hidden categories (0 members)
- How to Play (29 members)
- Icons (19 members)
- Images (3 members)
- Images needing improvement (0 members)
- Infobox templates (2 members)
- Legal notices (3 members)
- Media (2 members)
- Navigation templates (3 members)
- Notice templates (15 members)
- Office (1 member)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (0 members)
- Possible Spoilers (1 member)
- Reporters (12 members)
- Screenshots (13 members)
- Stories (4 members)
- Stubs (16 members)
- Subscribers (1 member)
- Template documentation (48 members)
- Templates (16 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- The Map (2 members)
- Unattributed files (0 members)
- User groups (18 members)
- Videos (0 members)
- Wiki maintenance (14 members)
- Wiki skin images (4 members)