The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 1970s games (2 members)
- 1970s games - Images (4 members)
- 1980s games (5 members)
- 1980s games - Images (118 members)
- 1990s games (23 members)
- 1990s games - Image galleries (1 member)
- 1990s games - Images (573 members)
- 2000s games (11 members)
- 2000s games - Image galleries (4 members)
- 2000s games - Images (346 members)
- 2000s games - Video galleries (1 member)
- 2010s games (12 members)
- 2010s games - Image galleries (4 members)
- 2010s games - Images (807 members)
- 2010s games - Video galleries (1 member)
- 2020s games (4 members)
- 2020s games - Images (22 members)
- Administrators (8 members)
- Anguirus (10 members)
- Article management templates (12 members)
- Article stubs (387 members)
- Articles with broken citations (1 member)
- Audio (251 members)
- Bandai (22 members)
- Banned User (58 members)
- Baragon (6 members)
- Battra (5 members)
- Blog posts (1,281 members)
- Books (82 members)
- Bugs (0 members)
- Bureaucrats (1 member)
- Candidates for deletion (0 members)
- Candidates for renaming (1,168 members)
- Characters (367 members)
- Chat Moderators (1 member)
- Chibi Godzilla Raids Again episodes (8 members)
- Citations needed (15 members)
- Cleanup (62 members)
- Color templates (90 members)
- Comic series (1 member)
- Comics (116 members)
- Community (6 members)
- Companies (35 members)
- Concept Art (1,254 members)
- Content (20 members)
- Copyright templates (2 members)
- Crossovers (23 members)
- Dark Horse (3 members)
- Dark Horse - Races (1 member)
- Dark Horse Comics (6 members)