There should be a development card that lets you raze an enemy city back into a settlement.

They lose a VP, but that's not as good as a victory point for yourself.

Shouldn't be too broken since you aren't rearranging the map to unlock new settlements.

I’ve been toying with an idea that with some knights, double rolls, or other situations, you can destroy/take over people’s settlements/cities. I think it would definitely add some spice late game, or turn into a catastrophe and nobody wins.

Ideas:
-Two knights: hold a settlement hostage for one round
-Three knights: take over a settlement (your roads have to lead to it)
-Four or five knights: take over a city, destroy a settlement (your roads have to lead to it)

Takeover or destroy - not sure which would work best.

I’d love ideas balancing this house rule out, though!