The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Academy upgrades (36 members)
- Algerian units (15 members)
- Artillery Depot upgrades (2 members)
- Artillery units (4 members)
- Artillery upgrades (9 members)
- Austrian units (28 members)
- Auxiliary templates (8 members)
- Barracks, 17th century upgrades (4 members)
- Barracks, 18th century upgrades (1 member)
- Blacksmith upgrades (6 members)
- Building upgrades (5 members)
- Buildings (4 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Cavalry upgrades (3 members)
- Citation needed (0 members)
- Civilian buildings (13 members)
- Cleanup (0 members)
- Community (5 members)
- Copyright templates (10 members)
- Cossacks 3 (13 members)
- Cossacks 3 Wiki (7 members)
- Cossacks 3 modding (3 members)
- Defensive buildings (4 members)
- Definition templates (25 members)
- Description templates (1 member)
- Disambiguations (0 members)
- Documentation templates (47 members)
- English units (23 members)
- Exploration upgrades (2 members)
- Fast cavalry units (6 members)
- Formatting templates (37 members)
- French units (28 members)
- Front page sections (8 members)
- General military upgrades (3 members)
- General wiki templates (1 member)
- Hidden categories (0 members)
- Icons (109 members)
- Image and media templates (1 member)
- Images (2 members)
- Images needing improvement (0 members)
- Infantry upgrades (2 members)
- Infobox templates (6 members)
- Legal notices (3 members)
- Media (2 members)
- Melee infantry units (10 members)
- Melee weapons upgrades (2 members)
- Mercenary units (4 members)
- Meta templates (2 members)
- Military buildings (8 members)