Developed by BL-Logic, a development studio made up by fans of the Hearts of Iron series and active member of the modding community, Arsenal of Democracy is the ultimate World War II simulation and is described by Project Leader Lennart Berg as Hearts of Iron II on steroids!
Key features include increased resolution and windowed mode freely selectable, totally reworked combat mechanics, new missions and realistic combat behavior and losses; several new technologies; new espionage interface and reworked espionage system; one of the most detailed economy and production system found in any Hearts of Iron game; realistic logistics system; everything is moddable; AI reworked and now poses a genuine threat, even to experienced players and four new battle scenarios.