The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Article management templates (4 members)
- Article stubs (13 members)
- Bees (1 member)
- BlogListingPage (0 members)
- Blog posts (17 members)
- Bosses (12 members)
- Browse (3 members)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Community (6 members)
- Content (1 member)
- Copyright (0 members)
- Corncobs (1 member)
- Denpa Men (11 members)
- Denpa Men: They came by Wave (1 member)
- Digitoll (8 members)
- Disambiguations (1 member)
- Dragons (1 member)
- Dungeons (1 member)
- Enemies (13 members)
- Files (2 members)
- Forums (6 members)
- Games (4 members)
- General wiki templates (34 members)
- Glitches (1 member)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (3 members)
- Image wiki templates (9 members)
- Images (4 members)
- Infobox templates (9 members)
- Items (1 member)
- Key items (1 member)
- Key locations (1 member)
- Mechanics (2 members)
- Monsters (1 member)
- New pages (0 members)
- Organisation (0 members)
- Organization (9 members)
- Pages proposed for deletion (0 members)
- Pages with broken file link (0 members)
- Pages with broken file links (5 members)
- Policy (2 members)
- Protagonists (51 members)
- QR Code Denpa Men (4 members)
- Rare Denpa Men (2 members)
- Site administration (4 members)
- Site maintenance (5 members)
- Status Contiontions (1 member)