The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Homebrew title launchers on 3DS (0 members)
- Homebrew trivia games on 3DS (0 members)
- Homebrew trivia games on DS (0 members)
- Homebrew trivia games on GBA (1 member)
- Homebrew trivia games on PSP (23 members)
- Homebrew using GRRLib (0 members)
- Homebrew using Sndlib (0 members)
- Homebrew using libELM (0 members)
- Homebrew using libfat (0 members)
- Homebrew using libwiisprite (0 members)
- Homebrew utility applications on 3DS (0 members)
- Homebrew utility applications on PSP (85 members)
- Image namespace templates (1 member)
- Indexed pages (1 member)
- Infobox Switch homebrew (0 members)
- Infobox homebrew using invalid type parameter (10,201 members)
- Infobox templates (1 member)
- Internal link templates (1 member)
- Interwiki link templates (1 member)
- Main (2 members)