Hearts of Iron (HoI) IV Review

Hearts of Iron IV is a grand strategy war game developed by Paradox Development Studio and published by Paradox Interactive. It was released on June 6th of 2016. This is the fourth installment in the Hearts of Iron franchise and also a sequel to Hearts of Iron III.


The game mainly revolves around World War II. The player can play as any nation in the world in 1936 or 1939 as one of the start periods. However, the game does not go beyond 1948.

Your military is divided between naval, aerial and ground forces alike. For the ground forces, you can customize, train and command divisions of different types of infantry, heavy vehicles and other units. The divisions have a requirement of a certain number of men to properly fight. The navy and air force also require manpower and equipment, including warships, and warplanes that are used in combat.

Hearts of Iron IV Gameplay
Hearts of Iron IV Gameplay

Most nations are forced to devote a certain number of civilian factories to producing consumer goods, but as the nation becomes more and more mobilized, more factories are available for military purposes.

Hearts of Iron IV attempts to recreate the complex diplomatic relationships of the day. The key feature of diplomacy is the ability to create a faction and invite other nations (players or AI) and therefore create a military alliance. Factions represent the main alliances of the World War II era like the Axis and Allies.


The original Hearts of Iron IV has 4 expansions:

  • Together for Victory (Released on December 15th, 2016)
  • Death or Dishonor (Released on June 14th, 2017)
  • Waking the Tiger (Released on March 8th, 2018)
  • Man the Guns (Released on February 28th, 2019)

In addition, these expansions added some minor changes and tweaks to the game, as well as focus trees for multiple nations in each expansion. However, the “Man the Guns” expansion focused mostly on improving naval combat as well as adding fuel as a resource.


The current score for Hearts of Iron IV on Metacritic is 83/100, which is not bad at all. In addition, GameSpot gave the game a positive review. Furthermore, they wrote that “Hearts of Iron IV embodies the hard truths about all-consuming war and the international politics that guide it.”

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