The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Chaotic Evil (2 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (12 members)
- Demon (2 members)
- Demonic (2 members)
- Disambiguations (0 members)
- Documentation templates (3 members)
- Formatting templates (22 members)
- Front page sections (6 members)
- Gorepack images (18 members)
- Guides (3 members)
- Hidden categories (0 members)
- Images (8 members)
- Images needing improvement (0 members)
- Infobox part templates (8 members)
- Infobox templates (3 members)
- Killer images (39 members)
- Legal notices (3 members)
- Masked (1 member)
- Mechanic images (6 members)
- Media (2 members)
- Monsters (2 members)
- Movies (12 members)
- Navigation templates (3 members)
- Notice templates (15 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (0 members)
- Protagonist Villain (1 member)
- Protagonists (2 members)
- Screenshots (12 members)
- Serial Killers (2 members)
- Slayaway Camp (7 members)
- Slayaway Camp Wiki (9 members)
- Stubs (22 members)
- Template documentation (56 members)
- Templates (18 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Unattributed files (0 members)
- Undeads (2 members)
- User groups (13 members)
- Videos (0 members)
- Villains (1 member)
- Wiki maintenance (14 members)
- Wiki skin images (9 members)