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 (9 members)
- Nintendo platforms (7 members)
- Notice and warning templates (2 members)
- Nowiki templates (1 member)
- Numbers as words conversion templates (1 member)
- Organizations (1 member)
- Other genre games (4 members)
- PC games (9 members)
- PEGI 12 games (3 members)
- PEGI 7 games (12 members)
- Pagename manipulation templates (1 member)
- Pages monitored by Wikipedia bots (1 member)
- Pages used in system messages needing protection (24 members)
- Pages using Lua-based templates (88 members)
- Pages using Tabber parser tag (92 members)
- Pages using multiple image with auto scaled images (1 member)
- Pages with TemplateStyles errors (79 members)
- Pages with broken file links (397 members)
- Pages with reference errors (19 members)
- Pages with script errors (156 members)
- Pages with syntax highlighting errors (117 members)
- Parents (2 members)
- People associated with Sonic the Hedgehog (3 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 (9 members)
- PlayStation 5 games (6 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 (10 members)
- Princesses (1 member)
- Professors (2 members)
- 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 (9 members)
- Rated E games (37 members)