The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- QuByte Interactive (Publisher) (1 member)
- Quantic Dream (Developer) (2 members)
- Queasy Games (Developer) (2 members)
- Quirkat (Developer) (1 member)
- Quirkat (Publisher) (1 member)
- RSX FIFO accuracy: Atomic (Config) (66 members)
- RSX FIFO accuracy: Ordered & Atomic (Config) (4 members)
- RTL Interactive (Publisher) (1 member)
- Racing (Genre) (149 members)
- Radical Entertainment (Developer) (2 members)
- Rail shooter (Genre) (21 members)
- Rain Games (Developer) (1 member)
- Rain Games (Publisher) (1 member)
- Rainbow (Series) (2 members)
- Rainbow Studios (Developer) (4 members)
- Ratchet & Clank (Series) (8 members)
- Ratchet & Clank Future (Series) (4 members)
- Ratloop (Developer) (1 member)
- Ratloop (Publisher) (1 member)
- Raven Software (Developer) (4 members)
- Ravn Studio (Developer) (1 member)
- Rayman (Series) (1 member)
- Re-Logic (Developer) (1 member)
- Read color buffers: Off (Config) (1 member)
- Read color buffers: On (Config) (36 members)
- Read depth buffers: On (Config) (6 members)
- Ready at Dawn (Developer) (1 member)
- Real-time strategy (Genre) (2 members)
- Real-time tactics (Genre) (2 members)
- Reality Pump (Developer) (2 members)
- Realta Entertainment Group (Developer) (1 member)
- Rebellion Developments (Developer) (7 members)
- Recoil Games (Developer) (1 member)
- Recom (Developer) (1 member)
- Recom (Publisher) (2 members)
- Record of Agarest (Series) (3 members)
- Red Dead (Series) (2 members)
- Red Entertainment (Developer) (2 members)
- Red Faction (Series) (3 members)
- Red Fly Studio (Developer) (1 member)
- Red Hare Studios (Developer) (1 member)
- Red Hare Studios (Publisher) (1 member)
- Red Johnson's Chronicles (Series) (2 members)
- Red Storm Entertainment (Developer) (1 member)
- Redoubt (Developer) (1 member)
- Reef Entertainment (Publisher) (2 members)
- Reflexive Entertainment (Developer) (1 member)
- Reflexive Entertainment (Publisher) (1 member)
- Regionless release date parameter (Infobox) (138 members)
- Regista (Developer) (2 members)
- Release format (3 members)
- Release region (4 members)
- Release type (4 members)
- Relentless Software (Developer) (6 members)
- Relentless Software (Publisher) (1 member)
- Relic Entertainment (Developer) (1 member)
- Renderer: OpenGL (Config) (3 members)
- Renderer: Vulkan (Config) (0 members)
- Renegade Kid (Developer) (1 member)
- Renegade Kid (Publisher) (1 member)
- Resident Evil (Series) (11 members)
- Resistance (Series) (3 members)
- Resolution scale (Config) (18 members)
- Resolution scale threshold (Config) (40 members)
- Reverb Publishing (Publisher) (2 members)
- Reverb Triple XP (Publisher) (1 member)
- Reverge Labs (Developer) (1 member)
- Rhino Studios (Developer) (1 member)
- Rhythm (Genre) (104 members)
- Ridge Racer (Series) (2 members)
- Right Square Bracket Left Square Bracket (Developer) (1 member)
- Right Square Bracket Left Square Bracket (Publisher) (1 member)
- Ripstone (Developer) (1 member)
- Ripstone (Publisher) (4 members)
- Risen (Series) (2 members)
- Rising Star Games (Publisher) (5 members)
- Risk (Series) (2 members)
- Robomodo (Developer) (4 members)
- Rock Band (Series) (12 members)
- Rockin' Android (Publisher) (1 member)
- Rocksmith (Series) (2 members)
- Rockstar Games (Developer) (8 members)
- Rockstar Games (Publisher) (9 members)
- Rocksteady Studios (Developer) (2 members)
- Roguelike (Genre) (1 member)
- Role-playing (Genre) (93 members)
- Roll7 (Developer) (1 member)
- Roll7 (Publisher) (1 member)
- Rombax Games (Publisher) (3 members)
- Ronimo Games (Developer) (2 members)
- Ronimo Games (Publisher) (1 member)
- Route 1 Games (Developer) (1 member)
- Rovio Entertainment (Developer) (2 members)
- Rugby Challenge (Series) (3 members)
- Rugby League (Series) (2 members)
- Ryu Ga Gotoku Studio (Developer) (8 members)
- SCE Japan Studio (Developer) (1 member)
- SCE San Diego Studio (Developer) (1 member)
- SCE Santa Monica Studio (Developer) (7 members)
- SCE Studio Liverpool (Developer) (2 members)