Hearts of Iron 4 is a war strategy game developed by Paradox Development Studio from Sweden. The game was released on 6th June 2016, which was the 72nd anniversary of the Normandy landings. The sequel of Hearts of Iron III allows the player to be a part of World War II’s events and lead the Allies, the Comintern or the Axis to victory. You can be a leader of any nation that existed at that time and change the course of history.