The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Ads (15 members)
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- Characters (26 members)
- Disambiguations (0 members)
- Enemies (12 members)
- Equipment (34 members)
- General wiki templates (1 member)
- Help (0 members)
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- Organizations (9 members)
- Planets (13 members)
- Secrets (10 members)
- Ships (18 members)
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- Tyrian, the Game (33 members)
- Tyrian, the Wiki (19 members)
- Tyrian Universe (10 members)
- Videos (15 members)