The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievement images (75 members)
- Achievements (77 members)
- Actor images (3 members)
- Acts (5 members)
- Bounties (1 member)
- COG Tags (1 member)
- Campaign (4 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Characters (8 members)
- Citation needed (0 members)
- Classes (7 members)
- Cleanup (0 members)
- Collectibles (2 members)
- Community (4 members)
- Copyright templates (10 members)
- DLC (2 members)
- DeeBees (7 members)
- Developers (1 member)
- Disambiguations (0 members)
- Documentation templates (51 members)
- Enemies (5 members)
- Engineer skills (11 members)
- Fabrications (8 members)
- Factions (2 members)
- Female characters (2 members)
- Formatting templates (21 members)
- Game modes (8 members)
- Gear (2 members)
- Gears of War 4 (21 members)
- Gears of War 4 Wiki (10 members)
- General skills (5 members)
- Grenades (2 members)
- Heavy skills (9 members)
- Heavy weapons (4 members)
- Hidden categories (0 members)
- Horde (7 members)
- Images (18 members)
- Images needing improvement (0 members)
- Infobox templates (5 members)
- Legal notices (3 members)
- Locations (6 members)
- Male characters (2 members)
- Maps (11 members)
- Media (2 members)
- Miscellaneous weapons (1 member)
- Notice templates (13 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (0 members)