The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Absorb (1 member)
- Aggressive Play (1 member)
- All Units (145 members)
- Base set (11 members)
- Blue-red units (7 members)
- Blue units (25 members)
- Boilerplates (3 members)
- Candidates for deletion (7 members)
- Candidates for speedy deletion (1 member)
- Character images (7 members)
- Characters (9 members)
- Citation needed (1 member)
- Cleanup (0 members)
- Colorless units (18 members)
- Community (3 members)
- Contents (13 members)
- Copyright templates (12 members)
- Defense puzzles (3 members)
- Defensive Play (3 members)
- Defensive puzzles (2 members)
- Development (1 member)
- Disambiguations (6 members)
- Documentation templates (55 members)
- Drones (7 members)
- Energy units (0 members)
- Episode 1 (11 members)
- Episode 2 (8 members)
- Episode 3 (5 members)
- Episodes (Campaign) (6 members)
- Expert challenges (1 member)
- Expert missions (19 members)
- Formatting templates (28 members)
- Gamepedia Blocks (3 members)
- Gameplay (8 members)
- Green-blue-red units (6 members)
- Green-blue units (8 members)
- Green-red units (9 members)
- Green units (21 members)
- Help (0 members)
- Images (17 members)
- Images needing improvement (0 members)
- Imported data templates (1 member)
- Imported data used by multiple pages (8 members)
- Imported unit data (116 members)
- Imported vocabulary (7 members)
- Infobox templates (3 members)
- Layout templates (2 members)
- Legal notices (3 members)
- Navigation templates (3 members)
- Non-player relevant units (28 members)