The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2D Characters (208 members)
- 3D Games (0 members)
- Adults (151 members)
- Alan Keane haters IRL (1 member)
- Anger Management Club (4 members)
- Animal Characters (44 members)
- Animators (3 members)
- April 2015 Featured Article (1 member)
- Aquatic henk (1 member)
- Archives (2 members)
- Article management templates (17 members)
- Article stubs (146 members)
- Articles featuring inappropriate content (1 member)
- Background Templates (1 member)
- Badge Games (17 members)
- Bananas (7 members)
- Ben Bocquelet (1 member)
- Bernice (1 member)
- BlogListingPage (1 member)
- Blog posts (2,042 members)
- Blogpost (1 member)
- Books (2 members)
- Bot (2 members)
- Boys (8 members)
- Brains (2 members)
- Browse (5 members)
- Buildings (21 members)
- CC-BY-SA files (2 members)
- CC-BY files (2 members)
- CGI Characters (55 members)
- Calculation templates (1 member)
- Candidates for deletion (66 members)
- Candidates for speedy deletion (7 members)
- CasteG's Blogs (1 member)
- Categories (1 member)
- Category templates (3 members)
- Character Galleries (241 members)
- Character Relationship Pages (15 members)
- Characters (284 members)
- Chat screencaps (47 members)
- Citations needed (1 member)
- Cleanup (3 members)
- Closed Contests (2 members)
- Clubs (4 members)
- Comics (26 members)
- Community (6 members)
- Content (12 members)
- Contests (2 members)
- Copyright (0 members)
- Crossover Games (31 members)