Paradox Interactive is celebrating an historical milestone for an historical game today. The publisher announced that Hearts of Iron IV has become the third of its releases to sell one million copies.
The game was released in 2016 as a part of the Hearts of Iron WWII strategy series. In it, players can control the nation of their choice during the events of the war, forming alliances and fighting battles in an alternate history of the player's choosing.
Hearts of Iron IV is the first Hearts of Iron game to sell one million copies. Paradox's other one million sellers are Crusader Kings II and Europa Universalis IV which, along with Cities: Skylines, will see their franchises turned into board games in the near future.
To mark the occasion, Paradox Interactive will offer an anniversary edition including the base game, the new Man The Guns expansion, and a collector's diorama.
"When we released Hearts of Iron IV we didn't know it was going to be such a success," said Game Director David Lind. "We did not dare make a big physical collector's edition. It feels great to be able to make something like that now."