Fortresses can be advantageous and disadvantageous. They are good because you’re in a castle. It’s a safe place to be.
They are bad because you’re in a castle. You’re stuck there. If you’re a defender on the inside make sure you are not hatred in there. If however, you’re attacking from the outside don’t try bashing down the door. They’ll pour hot oil on you and shoot you with arrows.
Instead, set up a siege.
