The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blood Swamp (1 member)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Character images (3 members)
- Characters (4 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (5 members)
- Copyright templates (12 members)
- Dark Camp (1 member)
- Disambiguations (0 members)
- Documentation templates (3 members)
- Enemies (2 members)
- Enemy images (1 member)
- Equipment (1 member)
- Formatting templates (21 members)
- Front page sections (0 members)
- Guides (1 member)
- Hidden categories (0 members)
- Images (6 members)
- Images needing improvement (0 members)
- Infobox templates (2 members)
- Legal notices (3 members)
- Mad World (1 member)
- Mad World Wiki (14 members)
- Media (2 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 (1 member)
- Quests (1 member)
- Responsive flex templates (11 members)
- Screens (4 members)
- Stubs (16 members)
- Template documentation (60 members)
- Templates (17 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Unattributed files (0 members)
- User groups (17 members)
- Videos (0 members)
- Weapons (1 member)
- Wiki maintenance (14 members)
- Wiki skin images (4 members)
- World (6 members)
- World images (3 members)