The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blocks (40 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (12 members)
- Disambiguations (0 members)
- Documentation templates (3 members)
- Entities (43 members)
- Formatting templates (20 members)
- Gamepedia Blocks (3 members)
- Images (227 members)
- Images needing improvement (0 members)
- Infobox templates (0 members)
- Legal notices (3 members)
- Media (3 members)
- Natural blocks (1 member)
- Notice templates (11 members)
- Pages with broken file links (14 members)
- Plants (4 members)
- Recipes (56 members)
- Solid Blocks (16 members)
- Stubs (0 members)
- Synthetic World Wiki (15 members)
- Template documentation (8 members)
- Templates (17 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Test Wiki (0 members)
- Tools (1 member)
- User groups (12 members)
- Videos (0 members)
- Voxel Blocks (23 members)
- Voxel blocks (1 member)
- Wiki maintenance (9 members)
- Wiki skin images (3 members)