About Hearts of Iron IV

Hearts of Iron IV puts the full weight of a nation's war machine in your hands, tasking you with balancing industry, diplomacy, and battle plans as you defend your interests and reach for global dominance during the Second World War. This grand strategy wargame runs both faithful historical scenarios and tempting alternate-history paths, turning your PC into a stage for one of the twentieth century's most dramatic conflicts.

Strategic depth sits at the heart of the simulation. You oversee continent-spanning fronts and a sprawling research tree while juggling politics and diplomacy, reshaping the geopolitical map to your advantage before the storm breaks. Military command is equally detailed: you assemble divisions of your own design, group them into armies, push toward objectives, and keep supply lines intact, with air, land, and naval theaters all demanding careful coordination.

Any country is open to you, from the era's leading powers chasing victory to smaller nations simply trying to survive. Internal politics let you assemble a war cabinet suited to the moment, favoring researchers and industrialists in peacetime and military leadership once conflict looms. On the industrial side, you construct factories and ports and turn them toward producing the tools of modern war. Rich in replay value, it rewards players who think several moves ahead.