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