So would it be possible to mix in a mod based on Lords of the Realm?
Advanced gameplay mechanics from Lords (not a necessity and not complete list):
Seasonal changes(affect population growth and agricultural production)
Tile use rotation (growing grain, cattle, or left fallow)
Regional happiness linked with pop. health, regional tax and amount of soldier drafting
Roaming merchant units
Random events (good weather, floods, droughts and plague)
Travelling mercenaries (perhaps done via city state feature)
Basic modifications required which I can think of from the top of my head are:
-fixed borders based on the counties with fixed resources of 8 to 16 fields/tiles for food production and with either quarry or mine.
-county capital upgrade with different castles (unlocking with county resources perhaps) with maybe predefined sets of castles, or just ratios: defence bonus based on rock quantity, unit stack garrison limit based on wood and some sort of threshold on both.
-regional food resource accumulation which can be then distributed by caravan carts
-global strategic resource and armoury item accumulation
-seven areas to which the citizens can be assigned: cattle herding, farming, wood chopping, blacksmithing, castle building, tilling, or mining. Citizens not active in one of these roles will remain idle.
-all counties have a blacksmith and forestry. Six major weapons types manufactured by blacksmiths (pikes, swords, maces, crossbows, bows, and knight armour). Each weapon requires different combinations of wood and iron to assemble. Bows are the only weapon to require only one type or resource; all other weapons require both wood and iron.
-Recruiting an army (not hiring mercenaries) requires population and for most units also needs weapons and armour (Knights, Macemen, Pikemen, Swordsmen, Peasants, Bowmen and Crossbowmen)
That's all I can think of right now and glance from wikipedia.
