Start in 1910 with one of the Major Countries of this time and fight through the series of events that lead the world in the first bloodest confict: the First World War.

Become a member of the Triple Entente or of the Central Powers and help your side in the Great War.

From the French-German border, the Balkans Wars, the Russian Revolution and more to come, this complete overhaul mod includes a new map, new events, new leaders, new governments, new units, new tech tree, new game mecanics and improved AI.

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RSS Articles

Hello Guys!

Today we released a Major Update for the Mod, one of the biggest update made with a complete New Interwar Scenario! 🥳

You can start in 1919 in an unpredictable shaken world just after the Treaty of Versailles! Among the changes, you'll discover a complete National Focus Tree for Poland as well as many technologies, events and ahistorical opportunities! The Polish-Soviet War, the Turkish War of Independence and the Russian Civil War haven't been forgotten!

We strongly recommend you to play Poland to better appreciate the situation and all the new things brought by this update. The Soviet Russia, the White Russia and the Weimar Republic can be interesting too but we accorded a special attention to the country of Józef Piłsudski!

The complete Changelog is available here.

We hope you will enjoy this new update and thanks again for your support since so many years. Have fun!

For those who wants to support us, we are currently developing our own WW1 Grand Strategy game: Fields of History: The Great War 💪

Special Announcements for the Centenary of the Armistice

Special Announcements for the Centenary of the Armistice

News 3 comments

Special Announcements for the Centenary of the Armistice.

D-Day Anniversary and Open Beta 0.5.3

D-Day Anniversary and Open Beta 0.5.3

News 5 comments

Some news about the development of Hearts of Iron IV: The Great War

Open Beta 0.5.1

Open Beta 0.5.1

News 5 comments

Some news about the development of Hearts of Iron IV: The Great War

First Anniversary of the Mod and Release of Open Beta 0.5

First Anniversary of the Mod and Release of Open Beta 0.5

News 3 comments

Some news about the development of Hearts of Iron IV: The Great War

RSS Files
Hearts of Iron IV: The Great War - Open Beta 0.19.2 "Alpini"

Hearts of Iron IV: The Great War - Open Beta 0.19.2 "Alpini"

Full Version

Hearts of Iron IV: The Great War - Open Beta 0.19.2 "Alpini" (6 October 2022)

Hearts of Iron IV: The Great War - Open Beta 0.18.2 "Ô Canada"

Hearts of Iron IV: The Great War - Open Beta 0.18.2 "Ô Canada"

Full Version

Hearts of Iron IV: The Great War - Open Beta 0.18.2 "Ô Canada" (29 August 2022)

Hearts of Iron IV: The Great War - Open Beta 0.18.1 "Ô Canada"

Hearts of Iron IV: The Great War - Open Beta 0.18.1 "Ô Canada"

Full Version

Hearts of Iron IV: The Great War - Open Beta 0.18.1 "Ô Canada" (10 August 2022)

Hearts of Iron IV: The Great War - Open Beta 0.18 "Ô Canada"

Hearts of Iron IV: The Great War - Open Beta 0.18 "Ô Canada"

Full Version

Hearts of Iron IV: The Great War - Open Beta 0.18 "Ô Canada" (12 July 2022)

Hearts of Iron IV: The Great War - Open Beta 0.17.7 "Railways"

Hearts of Iron IV: The Great War - Open Beta 0.17.7 "Railways"

Full Version 3 comments

Hearts of Iron IV: The Great War - Open Beta 0.17.7 "Railways" (30 May 2022)

Hearts of Iron IV: The Great War - Open Beta 0.17.6 "Railways"

Hearts of Iron IV: The Great War - Open Beta 0.17.6 "Railways"

Full Version

Hearts of Iron IV: The Great War - Open Beta 0.17.6 "Railways" (17 March 2022)

Comments  (0 - 10 of 1,063)
WolferosTeam Creator
WolferosTeam

The 1.12 Update of Hearts of Iron IV deserves well its name: "Avalanche"

To solve the many problems introduced we released the Open Beta 0.19.2 "Alpini"

Even under an Avalanche, keep your bayonet ready soldiers!

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Guest
Guest

I mean, I downloaded the version compatible with my game, but how do I get the mod into the game?

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WolferosTeam Creator
WolferosTeam

You've a tutorial file "How_To_Install.txt" inside the .zip ;)

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WolferosTeam Creator
WolferosTeam

The Open Beta 0.18 of The Great War Mod is online and it's compatible with HOI IV 1.11.12
In this version Canada is in the spotlight with the arrival of its own National Focus Tree, have fun!

Reply Good karma+1 vote
Guest
Guest

hey man i really cant figure how to make this work...any help please ?

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WolferosTeam Creator
WolferosTeam

Take a look at this: Hoi4.paradoxwikis.com ;-)

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The Open Beta 0.18.1 of The Great War #Mod for Hearts of Iron IV has been published 😉 Steamcommunity.com T.co

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The Open Beta 0.18 of The Great War Mod is online and it's compatible with @HOI_Game 1.11.12 In this version Canad… T.co

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RT @DrydockDreams: Death to the clones again on #screenshotsaturday! Our #3D artist Rizki giving some love to the Kongo class, whose s… T.co

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Jun 23 2022