"Total War: Rise of Mordor" is an epic overhaul project based on "The Lord of the Rings". The visuals of the mod are based on films however the background story and rosters are accurate to the books.
Wiid is working on a custom campaign (with Europe map as a base) for Age of Charlemagne DLC. It will be available soon. Campaign takes place in mid Third Age during the Kin Strife in Gondor (Civil War).