The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievements (7 members)
- Advanced editing (17 members)
- Advanced help (32 members)
- AutoUnsigned template used incorrectly (0 members)
- Automation (5 members)
- Basic editing (3 members)
- BoilerRoom manual (12 members)
- Bracket templates (4 members)
- Candidates for deletion (21 members)
- Candidates for speedy deletion (1 member)
- Cargo (4 members)
- Category extensions (1 member)
- Character-substitution templates (1 member)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (14 members)
- Conditional templates (1 member)
- Copyright templates (10 members)
- Curse (3 members)
- Custom Gamepedia extensions (31 members)
- DPL3 (21 members)
- DPL tracking categories (6 members)
- Disambiguations (6 members)
- Documentation modules (1 member)
- Documentation templates (7 members)
- Editing (16 members)
- Editing/ja (2 members)
- En (0 members)
- Example images (112 members)
- Examples (40 members)
- Extension styling considerations (3 members)
- Extensions (143 members)
- Footer navigation templates (4 members)
- Formatting templates (48 members)
- Front page sections (8 members)
- Front page sections/ja (4 members)
- Gamepedia (27 members)
- Gamepedia/ja (2 members)
- Gamepedia Help Wiki (20 members)
- Gamepedia Help Wiki/ja (2 members)
- Gamepedia Help Wiki in Georgian (0 members)
- Gamepedia Help Wiki in other languages (4 members)
- Gamepedia announcements (18 members)
- Gamepedia images (1 member)
- Gamepedia policies (13 members)
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- Guidelines (3 members)
- Guides (20 members)
- Help (28 members)
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- Hydra (6 members)
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- Infobox templates (4 members)
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- JA translation (18 members)
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- Legal notices (4 members)
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- Mod (1 member)
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- Navigation templates (13 members)
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- PDF files (2 members)
- PD images (14 members)
- Pages containing omitted template arguments (0 members)
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- Pages using DynamicPageList Intersection parser tag (0 members)
- Pages using DynamicPageList dplchapter parser function (1 member)
- Pages using DynamicPageList dplmatrix parser function (2 members)
- Pages using DynamicPageList dplnum parser function (1 member)
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- Pages using DynamicPageList parser function (131 members)
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- ParserPower manual (3 members)
- Personal customization (1 member)
- Preload templates (1 member)
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- Promotional images (17 members)
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- Reading (4 members)
- Scribunto modules with errors (0 members)
- Social extensions (0 members)
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- Special pages (2 members)
- Stubs (32 members)
- Talk page templates (5 members)
- Template documentation (97 members)
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- Terraria (1 member)
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