The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Nintendo DS games (6 members)
- Nintendo GameCube games (5 members)
- Nintendo Switch games (8 members)
- Nintendo platforms (7 members)
- Notice and warning templates (2 members)
- Nowiki templates (1 member)
- Numbers as words conversion templates (1 member)
- Other genre games (4 members)
- PC games (8 members)
- PEGI 12 games (3 members)
- PEGI 7 games (11 members)
- Pagename manipulation templates (1 member)
- Pages monitored by Wikipedia bots (1 member)
- Pages used in system messages needing protection (22 members)
- Pages using Lua-based templates (72 members)
- Pages using Tabber parser tag (68 members)
- Pages using multiple image with auto scaled images (1 member)
- Pages with TemplateStyles errors (89 members)
- Pages with broken file links (368 members)
- Pages with reference errors (17 members)
- Pages with script errors (164 members)
- Pages with syntax highlighting errors (113 members)
- Parents (1 member)
- People associated with Sonic the Hedgehog (2 members)
- Planes (1 member)
- Planets (1 member)
- Platforms (8 members)
- PlaySega games (3 members)
- PlayStation 2 games (4 members)
- PlayStation 3 games (7 members)
- PlayStation 4 games (8 members)
- PlayStation 5 games (5 members)
- PlayStation Network games (9 members)
- PlayStation Now games (7 members)
- PlayStation Vita games (1 member)
- Playable characters (24 members)
- Polar bears (1 member)
- Positioning templates (3 members)
- Power types (8 members)
- Preload templates (5 members)
- Princesses (1 member)
- Programming typing-aid templates (3 members)
- Publishing companies (2 members)
- Puyo Puyo! Sega games (2 members)
- Puzzle games (1 member)
- Racing games (6 members)
- Rated E10+ games (8 members)
- Rated E games (34 members)
- Rated T games (1 member)
- Real world (1 member)