Hi there, new poster here so be gentle.
I have been using the rule for kingdom building in my campaign (which is not kingmaker) and after 36 months or so of playing, all of their rolls are now automatic. Their size is 21 but their mod are 40+ in economy and late 30`s in the other. BP are coming in hard because of the black market and it`s 1 major items (15 bp) wich they sell every month along with 10-11 BP per economy check. Now they are starting their second district and their is no end in sight.
I have plan of couple of mass combat as they are several nation around their city, but still, by each passing month, their BP intake just keep getting higher and higher and soon, they will be the most powerful nation in the land.
So unless they decided to expand and take every hexes in the map (wich I doubt they will) Their kingdom will never fails (unless it`s a 1 of course)
any idea to help a GM out.