The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Special Edition Assault Frigates (6 members)
- Special Edition Battlecruisers (2 members)
- Special Edition Battleships (8 members)
- Special Edition Black Ops (2 members)
- Special Edition Corvettes (5 members)
- Special Edition Covert Ops (6 members)
- Special Edition Cruisers (4 members)
- Special Edition Destroyers (7 members)
- Special Edition Electronic Attack Ships (1 member)
- Special Edition Flag Cruisers (0 members)
- Special Edition Frigates (10 members)
- Special Edition Heavy Assault Cruisers (5 members)
- Special Edition Heavy Interdiction Cruisers (2 members)
- Special Edition Industrial Ships (4 members)
- Special Edition Interceptors (2 members)
- Special Edition Logistics Cruisers (2 members)
- Special Edition Recon Ships (6 members)
- Special Edition Ships (97 members)
- Special Edition Shuttles (7 members)
- Standard Battlecruisers (12 members)
- Standard Battleships (13 members)
- Standard Cruisers (17 members)
- Standard Destroyers (9 members)
- Standard Frigates (27 members)
- Storyline missions (122 members)
- Strategic Cruisers (4 members)
- Structures (238 members)
- Stubs (120 members)
- Supercarriers (5 members)
- Tactical Destroyers (4 members)
- Teaching Resources (12 members)
- Template (22 members)
- Template documentation (264 members)
- Templates copied from Wikia Templates (4 members)
- Templates without documentation (15 members)
- The Explorer's Shadow (100 members)
- Titans (5 members)
- Trade (11 members)
- Transport Ships (10 members)
- Unfinished mission reports (28 members)
- UniWiki Manual of Style (25 members)
- Unrated Complexes (85 members)
- User Interface (905 members)
- WHC (19 members)
- Weapons (22 members)
- Wiki Images (64 members)
- Wiki Information (29 members)
- Work in progress (3 members)
- Wormhole sites (76 members)
- Wormholes (152 members)