The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Alchemists (4 members)
- Beta content (2 members)
- Beta spells (0 members)
- Biomes (51 members)
- Bosses (11 members)
- Buildid (1 member)
- Buildid 4335384 (0 members)
- Candidates for deletion (2 members)
- Candidates for speedy deletion (0 members)
- Cargo declaring templates (2 members)
- Cargo helper templates (8 members)
- Cargo query templates (7 members)
- Cargo storing templates (2 members)
- Cargo templates (4 members)
- Circle conjuration spells (4 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Content templates (14 members)
- Copyright templates (12 members)
- Damage type icons (21 members)
- Defensive Perks (1 member)
- Disambiguations (8 members)
- Documentation templates (3 members)
- Drill spells (0 members)
- Electric spells (4 members)
- Enemies (163 members)
- Enemy immunity icons (18 members)
- Environment (4 members)
- Environments (0 members)
- Explosion spells (45 members)
- Fire (1 member)
- Fire spells (6 members)
- Flasks (2 members)
- Formatting templates (32 members)
- Front page sections (11 members)
- Gas (4 members)
- Gas (Static) (1 member)
- Gaseous (8 members)
- Gasses (0 members)
- Guides (23 members)
- Healers (5 members)
- Hidden categories (3 members)
- Hiisi (21 members)
- Ice spells (3 members)
- Icon images (39 members)
- Images (19 members)
- Images needing improvement (1 member)
- Impact spells (51 members)
- Infobox part templates (6 members)