The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievements (0 members)
- Air (13 members)
- Airports (1 member)
- Candidates for deletion (3 members)
- Candidates for speedy deletion (0 members)
- Chapter I (1 member)
- Chapters (0 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (10 members)
- Disambiguations (0 members)
- Documentation templates (50 members)
- Formatting templates (21 members)
- Front page sections (3 members)
- Game Modes (3 members)
- Guides (2 members)
- Harbors (1 member)
- Hidden categories (0 members)
- Images (2 members)
- Images needing improvement (0 members)
- Infobox templates (2 members)
- Legal notices (3 members)
- Media (26 members)
- Missions (3 members)
- Navigation templates (2 members)
- Notice templates (13 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (0 members)
- Rail (86 members)
- Stations (1 member)
- Street (48 members)
- Stubs (68 members)
- Templates (18 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Trains (1 member)
- Transport Fever (4 members)
- Transport Fever 2 (2 members)
- Transport Fever 2 Wiki (1 member)
- Transport Fever Wiki (35 members)
- Transportation (8 members)
- Unattributed files (0 members)
- User groups (12 members)
- Vehicle images (1 member)
- Vehicles (1 member)
- Videos (0 members)
- Water (16 members)
- Wiki maintenance (14 members)