Hearts of Iron is a grand strategy video game developed by Paradox Development Studio and published by Strategy First.There are three main alliances in the game, the Allies, the Axis, and the Communist International, that the player can either participate in or stay out of. The game ends when there is only one alliance left standing or on midnight, December 30, 1947, and the winning alliance is determined through a victory point system, giving points to alliances controlling key regions or cities.
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