The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 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)