The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievement templates (1 member)
- Achievements (37 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Characters (7 members)
- Citation needed (1 member)
- Cleanup (0 members)
- Community (3 members)
- Contents (3 members)
- Copyright templates (10 members)
- Developers (1 member)
- Disambiguations (0 members)
- Documentation templates (5 members)
- Formatting templates (20 members)
- Gamepedia Blocks (3 members)
- Green Sigils (4 members)
- Guardians (4 members)
- Help (0 members)
- Images (2 members)
- Images needing improvement (0 members)
- Infobox templates (0 members)
- Legal notices (3 members)
- Locations (6 members)
- Milton Library Archive (1 member)
- Notice templates (10 members)
- Pages with broken file links (9 members)
- Secret Stars (1 member)
- Sigils (8 members)
- Stubs (0 members)
- Template documentation (1 member)
- Template images (0 members)
- Templates (16 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Tools (13 members)
- Tools templates (1 member)
- User groups (12 members)
- Wiki (5 members)
- Wiki maintenance (9 members)
- Wiki skin images (2 members)
- Yellow Sigils (3 members)