Old World Blues is a total overhaul for Hearts of Iron IV: starting in the year 2275 and set in the Fallout universe. Experience the post-apocalypse like never before with a dynamic war system that ensures that the AI nations act on their own, respond to aggression, and strike when their opponents are weak. Forty seven national focus trees—ten of which are generic—keep the game exciting as numerous powers contest in a battle to control the Wasteland. With the use of “Historic Focuses”, you get to decide the path famous Fallout factions took, directing generic nations, and changing history as you see fit.