The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Modules required by modules (8 members)
- Modules requiring modules (11 members)
- Modules that add a tracking category (1 member)
- Multilingualism (1 member)
- Navplates (1 member)
- Necromancy (1 member)
- Necrotic Empowerment (1 member)
- OMEGA (1 member)
- OMEGA Wiki community (1 member)
- Page Templates (1 member)
- Pages using DynamicPageList3 parser function (5 members)
- Pages using DynamicPageList parser function (37 members)
- Pages using Tabber parser tag (6 members)
- Pages using duplicate arguments in template calls (1 member)
- Pages with broken file links (31 members)
- Pages with short description (7 members)
- People (6 members)
- People's Republic of China (1 member)
- Policies (1 member)
- Political Science (1 member)
- Powers (8 members)
- Powers Templates (39 members)
- Races with Blond, Red Brown or Black Hair (1 member)
- Races with Pale white or brown Skin (1 member)
- Races with Two Eyes (1 member)
- Regeneration (2 members)
- Science (1 member)
- Semi-Immortality (4 members)
- Single Characters (2 members)
- Species (1 member)
- Stubs (1 member)
- Superhuman Durability (2 members)
- Superhuman Stamina (2 members)
- Superhuman Strength (2 members)
- Table of Contents Templates (1 member)
- Tactical Analysis (1 member)
- Template documentation (30 members)
- Template invoked modules (3 members)
- Templates (9 members)
- Templates imported from Wikipedia (10 members)
- Threats (1 member)
- Transformation (1 member)
- True Animus Form (1 member)
- Typing-aid templates (5 members)
- Unique Physiology (2 members)
- Unused modules (8 members)
- Utility templates (1 member)
- Vampirism (2 members)
- Weaponry (2 members)
- Wikipedia Content (1 member)