The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ALEPH (13 members)
- Abnormalities (131 members)
- Abnormalities from backers (7 members)
- Abstraction/Amalgamation (3 members)
- Admin (0 members)
- Animal (24 members)
- Candidates for deletion (0 members)
- Characters (19 members)
- Departments (17 members)
- Disambiguations (0 members)
- Fairy Tale (23 members)
- Game Mechanics (27 members)
- Gameplay Mechanics (3 members)
- Gaming YouTubers (1 member)
- HE (31 members)
- Humanoid (34 members)
- Images (2 members)
- Inanimate Object (17 members)
- Legacy (51 members)
- Lobotomy Corporation Wiki (5 members)
- Machine/Artifact (18 members)
- Original (60 members)
- Pages with broken file links (6 members)
- Religious (10 members)
- Risk Level (5 members)
- Sephirah (10 members)
- TETH (32 members)
- Template documentation (26 members)
- Templates (25 members)
- Tool (17 members)
- Trauma (33 members)
- Unreleased (1 member)
- Videos (6 members)
- WAW (34 members)
- YouTube gamers (1 member)
- YouTubers (1 member)
- ZAYIN (17 members)