The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Articles (11 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Characters (2 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (3 members)
- Copyright templates (10 members)
- Developers (1 member)
- Disambiguations (0 members)
- Documentation templates (8 members)
- Enemies (1 member)
- Eon Altar Wiki (5 members)
- Formatting templates (21 members)
- Gamepedia Blocks (3 members)
- Images (3 members)
- Images needing improvement (0 members)
- Infobox templates (0 members)
- Items (1 member)
- Legal notices (3 members)
- Locations (1 member)
- Media (2 members)
- Missions (1 member)
- Notice templates (10 members)
- Official Screenshots (8 members)
- Official Wallpapers (1 member)
- Pages with broken file links (2 members)
- Quests (1 member)
- Stubs (1 member)
- Templates (16 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Test Wiki (0 members)
- User groups (12 members)
- Videos (1 member)
- Weapons (1 member)
- Wiki maintenance (10 members)
- Wiki skin images (3 members)