
Caps are also part of the game's economy, as is scavenging. stats and perks replace HoI 4's leader traits, while custom focus trees, icons, and 3D models further push immersion. In the meantime, navigable rivers provide additional access paths to different spots on the map. Mountain ranges act as impassable terrain that you'll have to work around or use to defend yourself.

Old World Blues replaces the world map from vanilla Hearts of Iron IV with a custom map of North America.
