The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Ads (15 members)
- Blog posts (0 members)
- Candidates for deletion (0 members)
- Characters (26 members)
- Disambiguations (0 members)
- Enemies (36 members)
- Equipment (34 members)
- General wiki templates (1 member)
- Help (0 members)
- Images (1 member)
- Levels (63 members)
- Lists (10 members)
- Organizations (9 members)
- Pages with broken file links (1 member)
- Planets (13 members)
- Secrets (22 members)
- Ships (18 members)
- Staff (9 members)
- Template documentation (26 members)
- Templates (25 members)
- Tyrian, the Game (33 members)
- Tyrian, the Wiki (20 members)
- Tyrian Universe (10 members)
- Videos (15 members)