Is your feature request related to a problem? Please describe.
Culture bonuses for how many towns in a nation share the same culture. More claims or less nation tax could be a bonus in the nation.
Describe the solution you'd like
Configurable bonuses for nations & towns depending on how many towns share culture.
Or maybe cultural war, going to war to change a towns culture.
And a configurable cooldown for changing ones culture.
Cooldown for changing culture after a siege should be configurable, and a cooldown right after changing a culture to minimize culture hopping.
Describe alternatives you've considered
None other alternatives
One downside of this, is that people will only want to join a large culture.
Maybe there could be parallel bonuses for smaller cultures, or maluses for large cultures?
Is your feature request related to a problem? Please describe. Culture bonuses for how many towns in a nation share the same culture. More claims or less nation tax could be a bonus in the nation.
Describe the solution you'd like Configurable bonuses for nations & towns depending on how many towns share culture. Or maybe cultural war, going to war to change a towns culture. And a configurable cooldown for changing ones culture. Cooldown for changing culture after a siege should be configurable, and a cooldown right after changing a culture to minimize culture hopping.
Describe alternatives you've considered None other alternatives
Additional context No context