The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blue Omega Entertainment (Developer) (1 member)
- Blue Tongue Entertainment (Developer) (1 member)
- Bluepoint Games (Developer) (5 members)
- Board game (Genre) (32 members)
- Boku no Natsuyasumi (Series) (2 members)
- Boolat Games (Developer) (1 member)
- Boolat Games (Publisher) (2 members)
- Borderlands (Series) (4 members)
- Borne Games (Developer) (1 member)
- Breakfall (Developer) (1 member)
- Breakfall (Publisher) (1 member)
- Breakout (Genre) (1 member)
- Broccoli (Developer) (1 member)
- Bugbear Entertainment (Developer) (1 member)
- Bulkypix (Publisher) (1 member)
- Bungie (Developer) (1 member)
- Bungie (Publisher) (1 member)
- Burnout (Series) (2 members)
- Buzz! (Series) (9 members)
- Buzz Monkey Software (Developer) (1 member)