The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Article management templates (3 members)
- Article stubs (0 members)
- BlogListingPage (0 members)
- Blog posts (4 members)
- Bosses (3 members)
- Browse (6 members)
- Candidates for deletion (2 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Community (5 members)
- Content (16 members)
- Copyright (1 member)
- Disambiguations (0 members)
- Emoticons (0 members)
- Factions (2 members)
- Forums (6 members)
- Games (1 member)
- General wiki templates (24 members)
- Help (6 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Image wiki templates (9 members)
- Images (2 members)
- MechAssault (14 members)
- MechAssault 2 (8 members)
- Mechassault (2 members)
- Mechs (41 members)
- Mechs And Vehicles (12 members)
- Music (3 members)
- Organisation (8 members)
- Pages proposed for deletion (0 members)
- Pages with broken file links (1 member)
- Planets (2 members)
- Policy (3 members)
- Screenshots (0 members)
- Site administration (5 members)
- Site maintenance (3 members)
- Tanks (2 members)
- Templates (6 members)
- Vehicles (1 member)
- Videos (2 members)
- Watercooler (2 members)
- Weaponry (3 members)
- Weapons (6 members)
- Wolves (4 members)