The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievement images (64 members)
- Achievements (66 members)
- Aerial Units (4 members)
- Affinities (4 members)
- Air Fighters (4 members)
- Alien Units (8 members)
- Aquatic Units (1 member)
- Artifact icons (8 members)
- Artifacts (6 members)
- Basic Resources (12 members)
- Basic Units (14 members)
- Beyond Earth (6 members)
- Beyond Earth Wiki (9 members)
- Building icons (62 members)
- Buildings (66 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Cargo icons (5 members)
- Carriers (2 members)
- Citation needed (0 members)
- Civilization icons (11 members)
- Civilizations (16 members)
- Cleanup (0 members)
- Colonist icons (5 members)
- Community (3 members)
- Concept art (8 members)
- Copyright templates (12 members)
- Culture (0 members)
- DPL templates (3 members)
- Disambiguations (1 member)
- Documentation templates (3 members)
- Energy (0 members)
- Expansions (1 member)
- Food (0 members)
- Formatting templates (19 members)
- Front page sections (4 members)
- Game Mechanics (17 members)
- Ground Units (4 members)
- Harmony Units (22 members)
- Hidden categories (12 members)
- Icons (59 members)
- Images (6 members)
- Images needing improvement (0 members)
- Improvement icons (26 members)
- Improvements (8 members)
- Infantry (2 members)
- Infobox templates (1 member)
- Leader icons (8 members)
- Leaf Technologies (53 members)
- Legal notices (3 members)