The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2D Entities (0 members)
- 3D Entities (0 members)
- Achievements (0 members)
- April Fools (0 members)
- Based on Conjecture (0 members)
- Blog posts (0 members)
- Boss (0 members)
- Boss Location (0 members)
- Boss Locations (0 members)
- Bosses (0 members)
- CC-BY-SA files (0 members)
- Cancelled Events (0 members)
- Candidates for cleanup (0 members)
- Candidates for deletion (0 members)
- Candidates for moving (0 members)
- Collaborations (0 members)
- Collabs (0 members)
- Community (0 members)
- Consumables (0 members)
- Contributors (0 members)
- DOORS (0 members)
- DOORS Wiki (0 members)
- Design templates (0 members)
- Developers (0 members)
- Disambig templates (0 members)
- Disambiguation pages (0 members)
- Documentation templates (0 members)
- Doors (0 members)
- Doors Wiki (0 members)
- Entities (0 members)
- Events (0 members)
- Exploiting (0 members)
- Fairuse files (0 members)
- Features (0 members)
- Files from WikiMedia projects (0 members)
- Files uploaded by the photographer or author (0 members)
- Files uploaded for user pages (0 members)
- Files used with permission (0 members)
- Floors (0 members)
- Friendly Entities (0 members)
- Game Mechanics (0 members)
- Games (0 members)
- General wiki templates (0 members)
- Glitch (0 members)
- Groups (0 members)
- Hatnote templates with errors (0 members)
- Hazards (0 members)
- Hostile Entities (0 members)
- Hotel (0 members)
- Image license templates (0 members)