Clausewitz Engine (4)  

The Clausewitz Engine is a game engine developed by Paradox Interactive AB that can be found in a variety of strategy games, especially Grand Strategy titles like Europa Universalis, Crusader Kings and Hearts of Iron. It is characterized by its ability to represent complex historical and geopolitical simulations. Paradox games are characterized by excessive implementation of third-party trackers and account retention.

	Title	Publisher	Released	Steam APP ID:
	Crusader Kings II	Paradox Interactive AB	2012	203770
	Crusader Kings III	Paradox Interactive AB	2020	1158310
	Hearts of Iron IV	Paradox Interactive AB	2016	394360
	Imperator: Rome	Paradox Interactive AB	2019	859580