The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Armor (2 members)
- Armor images (3 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Characters (7 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Concept art (82 members)
- Copyright templates (10 members)
- Creatures (2 members)
- Disambiguations (0 members)
- Documentation templates (46 members)
- Formatting templates (22 members)
- Heavy weapon images (9 members)
- Heavy weapons (9 members)
- Images (6 members)
- Images needing improvement (0 members)
- Infobox templates (1 member)
- Legal notices (3 members)
- Light weapon images (10 members)
- Light weapons (10 members)
- Locations (6 members)
- Lore (2 members)
- Media (2 members)
- Medium weapon images (18 members)
- Medium weapons (18 members)
- Notice templates (13 members)
- Pages with broken file links (0 members)
- Screenshots (41 members)
- Stubs (68 members)
- Templates (15 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Test Wiki (0 members)
- The SKIES (13 members)
- The SKIES Wiki (7 members)
- User groups (13 members)
- Videos (1 member)
- Weapon images (115 members)
- Weapons (55 members)
- Wiki maintenance (10 members)
- Wiki skin images (11 members)