The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- BlitWorks (Developer) (1 member)
- Blitz Arcade (Developer) (2 members)
- Blitz Games (Developer) (6 members)
- Blitz Games Studios (Developer) (1 member)
- Blizzard Entertainment (Developer) (1 member)
- Blizzard Entertainment (Publisher) (1 member)
- Bloober Team (Developer) (3 members)
- Bloober Team (Publisher) (1 member)
- Blue Castle Games (Developer) (5 members)
- Blue Isle Studios (Developer) (1 member)
- 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)