Group
- Castle Clark6
- Catalyst Game Labs366
- CeeDub Gaming & Improv1
- Central Michigan University Press1
- Chad Pytel1
- Chaos Haunted & Historical Tours9
- Chaosium11
- Chess & Strategy Game Association32
- Chicago ConLARP72
- Chip Theory Games46
- Chris Chaudruc2
- Christian Gamers Guild2
- Chronicle RPG Accessories1
- Cincinnati Arsenal Gaming287
- Citizens of Lorcana1
- City of Glass Games41
- Civil Dawn Games5
- Claireknits12
- Cloven Pine Games2
- Common Lands Associated Media4