The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Ammunition (4 members)
- Auxiliary templates (8 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (5 members)
- Copyright templates (10 members)
- Crafting (1 member)
- Disambiguations (0 members)
- Documentation templates (47 members)
- Formatting templates (23 members)
- General wiki templates (1 member)
- Hidden categories (1 member)
- Image and media templates (1 member)
- Images (30 members)
- Images needing improvement (0 members)
- Infobox templates (3 members)
- Legal notices (3 members)
- Media (2 members)
- Meta templates (2 members)
- Naval Action (16 members)
- Naval Action Wiki (7 members)
- Naval Action images (1 member)
- Navbox templates (1 member)
- Navigation templates (1 member)
- Notice templates (13 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages using duplicate arguments in template calls (42 members)
- Pages with broken file links (6 members)
- Permanent ship upgrades (9 members)
- Regular ship upgrades (12 members)
- Ship modules (7 members)
- Ship weapons (7 members)
- Ships (56 members)
- Stubs (52 members)
- Template documentation (1 member)
- Templates (22 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Unattributed files (0 members)
- User groups (14 members)
- Videos (0 members)
- Wiki maintenance (14 members)
- Wiki skin images (3 members)