Can't get enough castles and knights? Then bundle together all the Medieval things and get Mount & Blade II: Bannerlord with Age of Empires II: Definitive Edition plus the expansions: Lords of the West, Dawn of the Dukes, and Dynasties of India! Don't wait - get a 60% discount for a limited time!
https://store.steampowered.com/bundle/42279/Mount__Blade_II__Age_of_Empires_II/