Campaigns that are open (wide variety of choices) in green:
- Seafaring
- Large City (Port Springs, Rogues style)
- Single Race (Gnolls, Grean)
- Religion-based (Tyrogatore)
- Nation-based (Icefian, Mounted)
- Region-based (Great Forest, Palumbton)
- Villain-based (GOLK, dragons)
- Class-based (Wizards)
Within those, the level of open does vary, but if I had to divide, that is how I would.