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Hearts of Iron IV
Hearts of Iron IV gameplay screenshot. Planes, ships and units clash on a map. An arrow indicates a 70 division army.
Screenshot of the game Hearts of Iron IV, focusing on the Asian theater, depicting the war between Japan and China.
Screenshot from Hearts of Iron IV. The game shows the division designer menu with a map in the background.

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    World War II is known as one of the greatest wars ever waged, and for good reason, its battles were legendary, and the men behind them, regardless of the side, were just as legendary. Now, in Hearts of Iron IV, you'll get to become these great leaders of men and lead your nation to victory against its foes. Command your armies on the ground, in the air, and on the sea to ensure total victory, similarly to the Hearts of Iron franchise. Hearts of Iron IV doesn't just give you command, it makes you the commander, and you'll have to not only win the battles, but win the hearts of your soldiers so that they'll follow you anywhere you need to go. Plus, you'll command units on all sides that helped turn the tide of battle over and over again. From soldiers, to tanks, to bomber planes, to battleships, you'll have the full arsenal at your disposal to help win each and every battle. The great war had some of the most powerful and infamous factions of all time, and you'll be able to command them all should you want. Become the might Allies and fight for freedom, or, become the Axis powers and fight for control over the entire world. Each side will give you new battles, new units, and new takes on the war. Strategy is the key in Hearts of Iron IV, but not just strategy in the war room, or on the battlefield, but also in the realm of diplomacy. You'll need to make allies to help you in battle, and ensure that key enemies don't get key items or support. Plus, you'll need to be strategic with your technology, to help your nation grow and advance through the war and help bring it to an end. For intense strategy and war simulation, you can do no better than Hearts of Iron IV.

     

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    FAQ - Frequently Asked Questions

    How detailed is the historical simulation in Hearts of Iron IV?

    The game offers a deep level of historical simulation, with accurate representation of countries, leaders, technologies, and events of the WWII era. However, players can also deviate from history.

    Can I play as any country?

    Yes, the game allows you to play as any nation that existed during the time period, from major powers to minor nations.

    What kind of choices do I have in terms of diplomacy?

    Players can engage in diplomacy by forming alliances, declaring war, negotiating trade agreements, and influencing other nations' ideologies.

    How important is economic management?

    Economic management is crucial. Players must manage resources, build factories, and allocate production to support their war effort, technological research, and military expansion.

    Does the game have a steep learning curve?

    Hearts of Iron IV has a complex system and may have a learning curve for new players. However, tutorials and a large community are available to help players learn the game.

    Patch Notes

    • 5/13/26 (HOI IV - Open Beta Update V)
    • 1.18.1 - 4/29/26 (Peace For Our Time | Patch 1.18.1)
    • 1.17.5.2 - 3/26/26 (Warships of the Pacific - Hotfix, 1.17.5.2)
    • 1.17.5.1 - 3/19/26 (Warships of the Pacific - Hotfix, 1.17.5.1)
    • 1.17.4.1 - 2/25/26 ((Very small) Hotfix - Patch 1.17.4.1)
    • 1.17.1.1 - 11/27/25 (NCNS Patch 1.17.1.1)
    • 1.17.1 - 11/26/25 (NCNS | Patch 1.17.1)
    • 11/21/25 (No Compromise, No Surrender | Hotfix & Korean Localization)
    • 3/20/25 (Studio Gold Update & Patch Notes for Operation Knee)
    • 3/12/25 (Patch Notes | Operation HEAD, Checksum 48b7)
    • 1.14.7 - 6/24/24 (Hotfix | Patch 1.14.7 Checksum: f03b)
    • 1.14.3 - 3/21/24 (Steam Store Update | Patch 1.14.3 [Checksum 21DE])
    • 1.13.6 - 12/12/23 (Stella Polaris | Patch 1.13.6)
    • 1.13.4 - 10/19/23 (Stella Polaris | Patch 1.13.4 Changelog - Checksum 15a3)
    • 1.13.3 - 10/12/23 (Stella Polaris Hotfix 1.13.3)
    • 1.13.2 - 10/11/23 (Stella Polaris Hotfix 1.13.2)
    • 10/9/23 (Arms Against Tyranny | Change Log)
    • 1.12.14 - 5/23/23 (Patch 1.12.14 Medals Hotfix)
    • 1.12.9 - 1/25/23 (1.12.9 Hotfix Patch)
    • 1.12.4 - 10/18/22 (Avalanche 1.12.4 - By Blood Alone - Checksum f96e)
    • 1.12.3 - 10/6/22 (Avalanche 1.12.3 - By Blood Alone - Checksum 6b16)
    • 1.12.2 - 9/30/22 (Avalanche 1.12.2 - By Blood Alone - Checksum e45c)
    • 1.12.1 - 9/27/22 (Avalanche 1.12.1 - By Blood Alone - Checksum 45c2)
    • 1.11.13 - 8/23/22 (Barbarossa 1.11.13 - Nakama Crossplay - Checksum d173)
    • 1.11.12 - 6/9/22 (Patch 1.11.12 "Barbarossa")
    • 1.11.11 - 5/12/22 (Patch 1.11.11 "Barbarossa")
    • 1.11.10 - 4/7/22 (Barbarossa Patch 1.11.10 - Checksum 09ac)
    • 1.11.9 - 3/10/22 (Patch 1.11.9 "Barbarossa")
    • 1.11.8 - 2/24/22 (Patch 1.11.8 "Barbarossa")
    • 1.11.7 - 2/17/22 (Patch 1.11.7 "Barbarossa)
    • 1.11.6 - 2/14/22 (Barbarossa Patch 1.11.6 - Checksum: 630e | LIVE | Patch Notes)
    • 1.11.5 - 1/27/22 (Hearts of Iron IV: Barbarossa Patch 1.11.5 Notes)
    • 1.11.4 - 12/14/21 (Hearts of Iron IV: Patch 1.11.4 - Barbarossa)
    • 1.11.2 - 11/25/21 (Hotfix - Patch 1.11.2 - Armour Packs)
    • 1.10.8 - 8/5/21 (Patch 1.10.8 - Multiplayer Hotfix)
    • 1.10.7 - 6/3/21 (Patch 1.10.7 "Collie" - Hotfix)
    • 1.10.6 - 6/2/21 (HOI4 5 Year Anniversary: Patch Notes | Patch 1.10.6 "Collie")
    • 1.10.4 - 2/3/21 (Patch 1.10.4 - Multiplayer Security Fix)
    • 1.10.3 - 11/26/20 (Patch 1.10.3 Changelog (Big Sur fix))
    • 1.10.2 - 11/12/20 (Patch 1.10.2 - Changelog)
    • 1.10 - 10/15/20 (1.10 'Collie' Update - Changelog)
    • 1.9.3 - 6/4/20 (Patch 1.9.3 now Live: Balance and Bugfixing)
    • 1.9.2 - 5/6/20 (Patch 1.9.2: Bugfixes and Balance)
    • 1.9.1 - 4/8/20 (Patch 1.9.1: New Releasables, Art, Balance Tweaks and More!)
    • 1.8.2 - 2/7/20 (Patch 1.8.2: Security Fix)
    • 1.8.1 - 11/14/19 (Launcher Hotfix 1.8.1 LIVE)
    • 11/12/19 (New Launcher on November 13th)
    • 1.7.1 - 6/26/19 (1.7.1 "Hydra" now live!)
    • 1.7 - 6/4/19 (1.7 Hydra Update is Live!)
    • 1.6.2 - 4/3/19 (Patch 1.6.2 Ironclad is Live)
    • 1.6.1 - 3/13/19 (Patch 1.6.1 Live Now!)
    • 1.6 - 2/28/19 (Update 1.6: Ironclad is now live!)
    • 1.4.2 - 8/16/17 (Hotfix 1.4.2 "Oak")
    • 1.3.3 - 2/23/17 (Torch 1.3.3 patch [checksum: 2dd2] - LIVE now)
    • 1.3.2 - 1/17/17 (Hotfix Patch 1.3.2 Live Now! [checksum e13a])
    • 1.3.1 - 12/21/16 (Hotfix Patch 1.3.1 Live Now! [checksum: 8152])
    • 1.3 - 12/15/16 (Patch 1.3 - Torch is live now!)
    • 1.2 - 9/16/16 ("Sunflower" - Patch 1.2 - released!)
    • 1.1 - 6/30/16 ("Red Ball Express" (1.1 Patch) Released! [checksum: 5d33])
    • 6/13/16 (The Very First Patch is LIVE!)

    Comments on Hearts of Iron IV

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    Supported languages

    Interface Audio Subtitles
    English
    Korean
    French
    Polish
    Portuguese (Brazil)
    Spanish (Spain)
    German
    Russian
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