The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Puzzle games on 3DS (59 members)
- Puzzle games on DS (326 members)
- Puzzle games on GB (143 members)
- Puzzle games on GBA (177 members)
- Puzzle games on PSP (193 members)
- Puzzle games on Switch (36 members)
- Puzzle games on Vita (100 members)
- Puzzle games on Wii U (5 members)
- Puzzle games on Xbox (22 members)
- PxP Homebrew Competition (7 members)
- QJ.net and Lik-Sang Summer Homebrew Competition (10 members)
- R4 DS Homebrew Contest (47 members)
- RE:Start! The 2022 PSP Game Jam (20 members)
- ROM Patchers (0 members)
- ROM patchers (13 members)
- Racing Games on GB (0 members)
- Racing games on 3DS (4 members)
- Racing games on DS (29 members)
- Racing games on GB (9 members)
- Racing games on GBA (15 members)
- Racing games on PSP (24 members)
- Racing games on Switch (6 members)
- Racing games on Vita (32 members)
- Racing games on Xbox (1 member)
- Remote play and streaming programs for Switch (18 members)
- RetroEuskal 2019 (1 member)
- RetroMania 2019 (3 members)
- RetroMania 2022 (1 member)
- Revitalize Homebrew Competition (12 members)
- Reviving the PSP (7 members)
- Role Playing Games on GB (0 members)
- Role playing games on 3DS (15 members)
- Role playing games on DS (36 members)
- Role playing games on GB (41 members)
- Role playing games on GBA (30 members)
- Role playing games on PSP (33 members)
- Role playing games on Switch (12 members)
- Role playing games on Vita (26 members)
- Role playing games on Xbox (8 members)
- Rom builders for GBA (17 members)
- Savegame tools on Switch (18 members)
- Scenery Beta 2008 (33 members)
- Scenery Beta 2009 (62 members)
- Scenery Beta 2010 (46 members)
- Scenery Beta 2011 (43 members)
- Shooter Games on GB (0 members)
- Shooter games on 3DS (53 members)
- Shooter games on DS (145 members)
- Shooter games on GB (92 members)
- Shooter games on GBA (101 members)