The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2000s Series (1 member)
- American Series (9 members)
- Anime (31 members)
- Blog posts (0 members)
- Browse (2 members)
- Candidates for deletion (0 members)
- Characters (7 members)
- Chinese Series (1 member)
- Content (9 members)
- Disambiguations (0 members)
- Female Characters (1 member)
- Games (2 members)
- Help (0 members)
- Humans (3 members)
- Images (6 members)
- Isekai Series (115 members)
- Japanese Series (22 members)
- Light Novels (72 members)
- MMORPG Genres (6 members)
- Magic (1 member)
- Male Characters (2 members)
- Manga (74 members)
- Media (5 members)
- Novels (1 member)
- Parallel Universe Genre (1 member)
- Reverse Isekai (5 members)
- Site Administration (1 member)
- Skill (1 member)
- Summoning-type Genre (2 members)
- Template documentation (1 member)
- Templates (8 members)
- Terminology (2 members)
- Transition-type Genre (4 members)
- Transition type Genres (1 member)
- Utility templates (1 member)
- Virtual Reality Genre (1 member)
- Web Novels (54 members)
- World Hopping (1 member)