The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Achievement images (80 members)
- Achievements (2 members)
- Achievements (Magicka) (7 members)
- Achievements (Magicka 2) (47 members)
- Administration (10 members)
- Articles nominated for deletion (0 members)
- Basic Game Information (12 members)
- Beastmen (3 members)
- Beholders (2 members)
- Bosses (1 member)
- Bosses (Magicka) (11 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Challenges (2 members)
- Challenges (Magicka) (9 members)
- Challenges (Magicka 2) (7 members)
- Chests (1 member)
- Citation needed (0 members)
- Cleanup (3 members)
- Copyright templates (12 members)
- Crystal Icons (8 members)
- DLC (32 members)
- DLC (Magicka) (25 members)
- DLC (Magicka 2) (1 member)
- Daemons (2 members)
- Diagrams (1 member)
- Disambiguations (17 members)
- Documentation templates (3 members)
- Dragons (2 members)
- Drakes (1 member)
- Dwarves (1 member)
- Element Icons (11 members)
- Element Icons (Wizard Wars) (8 members)
- Enemies (64 members)
- Enemies (Magicka) (22 members)
- Enemies (Magicka 2) (1 member)
- Extended Game Information (9 members)
- Extracted media (36 members)
- Firearms (9 members)
- Formatting templates (14 members)
- Front page sections (4 members)
- Game Resource (11 members)
- Goblins (3 members)
- Hidden categories (10 members)
- Humans (17 members)
- Icon templates (2 members)
- Images (21 members)
- Images needing improvement (0 members)
- Imps (1 member)
- Infobox templates (6 members)