The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievements (16 members)
- Artifacts (15 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Characters (1 member)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (10 members)
- Cryptark (14 members)
- Cryptark Wiki (6 members)
- Developers (1 member)
- Disambiguations (0 members)
- Documentation templates (46 members)
- Enemies (3 members)
- Equipment (0 members)
- Formatting templates (21 members)
- Gamepedia Blocks (3 members)
- Images (2 members)
- Images needing improvement (0 members)
- Infobox templates (1 member)
- Items (1 member)
- Legal notices (3 members)
- Media (2 members)
- Notice templates (12 members)
- Pages with broken file links (0 members)
- Screenshots (124 members)
- Shields (1 member)
- Ship classes (0 members)
- Ships (1 member)
- Stubs (7 members)
- Systems (6 members)
- Templates (16 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- User groups (12 members)
- Videos (0 members)
- Weapons (0 members)
- Wiki maintenance (10 members)
- Wiki skin images (4 members)