The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Portal chambers/fi (28 members)
- Portal chambers/fr (38 members)
- Portal chambers/ja (9 members)
- Portal chambers/ko (4 members)
- Portal chambers/pl (4 members)
- Portal chambers/pt-br (5 members)
- Portal chambers/ru (22 members)
- Portal chambers/zh-hans (18 members)
- Portal chambers/zh-hant (22 members)
- Portal walkthrough (24 members)
- Print images (16 members)
- Promotional images (9 members)
- Protected pages (10 members)
- Public Domain images (81 members)
- Puzzle Creator (2 members)
- Puzzle Creator/es (1 member)
- Puzzle Creator/fi (1 member)
- Puzzle Creator/ko (1 member)
- Puzzle Creator/pt-br (1 member)
- Puzzle Creator/ru (1 member)
- Puzzle Creator images (45 members)
- Recent additions (1 member)
- Recent additions/ru (1 member)
- Redirects (1 member)
- Requested merges (0 members)
- Requested moves (1 member)
- Requested splits (0 members)
- Rexaura (2 members)
- Rexaura Test Chambers (0 members)
- Rexaura achievements images (3 members)
- Rexaura chambers (10 members)
- Rexaura chambers/fr (9 members)
- Ringtones (78 members)
- Russians (20 members)
- Screenshot images (249 members)
- Singaporeans (1 member)
- Skins (7 members)
- Skins/es (1 member)
- Skins/fi (7 members)
- Skins/fr (7 members)
- Skins/ko (1 member)
- Skins/pl (7 members)
- Skins/pt-br (7 members)
- Skins/ru (7 members)
- Skins/zh-hant (2 members)
- Skins images (11 members)
- Slovakians (2 members)
- Soundtrack (142 members)
- South Americans (1 member)
- Space Core players (8 members)