The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 1938 (1 member)
- Ages of Conflict (5 members)
- Article message templates with missing parameters (1 member)
- Blog posts (0 members)
- Candidates for deletion (0 members)
- Community (1 member)
- Completed Article (1 member)
- Credits (1 member)
- Design templates (1 member)
- Developers (1 member)
- Disambiguations (0 members)
- Documentation templates (1 member)
- Game Mechanics (10 members)
- General wiki templates (9 members)
- Good Articles (1 member)
- Hatnote templates with errors (0 members)
- Image license templates (12 members)
- Images (4 members)
- Infobox Templates (1 member)
- Infobox templates (1 member)
- Main Page Templates (1 member)
- Maintenance (5 members)
- Maps (15 members)
- Media (2 members)
- Moderators (1 member)
- Nations (0 members)
- Navbox templates (1 member)
- Navigation templates (2 members)
- Notice templates (25 members)
- Outdated (0 members)
- Pages using Tabber parser tag (5 members)
- Pages with broken file links (6 members)
- Pages with ignored display titles (2 members)
- Pages with script errors (17 members)
- People (3 members)
- Quote templates (2 members)
- Removed (1 member)
- Scenarios (9 members)
- Screenshots (0 members)
- Settings (1 member)
- Steam Workshop (1 member)
- Stub (0 members)
- Stubs (0 members)
- Styling pages (1 member)
- Template documentation (38 members)
- Templates (10 members)
- Tutorials (1 member)
- Unattributed files (0 members)
- Untidy Article (1 member)
- Updates (2 members)