Hearts of Iron 4 is a global strategy from Paradox Interactive, which is dedicated to World War II. The game has been praised for its historical accuracy, attention to detail and variety. And with the help of mods you can make it even better, change the time period or even transfer the action to another universe. In this article we will tell you about the best modifications for the fourth Hearts of Iron.

Hearts of Iron 4 takes place from 1936 to 1949. You are given time to prepare for the start of World War II, enter it on your own terms and lead the country to victory. Events take place in real time, but there is always the opportunity to pause the game and think about important decisions: choose a priority for the development of the country, come to an agreement with neighbors or start hostilities.
Install mods on Hearts of Iron 4
- Install Hearts of Iron 4 on Steam.
- Go to the page with the change. You’ll see specific links in the post descriptions.
- Click the “Subscribe” button to add the mod to the game.
- Launch Hearts of Iron 4.
- Open the ‘Mods’ tab.
- Select the change you need.

The Great War – First World War

This mod was released on June 8, 2016, i.e. two days after the game’s release. However, over the course of 7 years it was improved and supplemented, with the last update appearing on October 25, 2023. As the name suggests, the change takes the action of Hearts of Iron 4 during World War I (1914-1918). Dozens of countries are simulated here in detail and the specifics of military operations at the beginning of the last century are taken into account.
Kaiserreich: Legacy of the Weltkrieg – the world after the Emperor’s victory in the First World War

A kind of continuation of the previous mod, offering a look at the world in which the Kaiser’s Germany and its allies in the Triple Alliance defeated the Entente. But this has created the basis for new conflicts that could lead to a second Great War. The adaptation, like the original game, starts in 1936, but the starting conditions are completely different here.
In the name of the Tsar – victory of the Russian Empire in the First World War

The mod allows you to look at a different outcome of the Great War. The change suggests that Brusilov’s breakthrough of 1916 was so successful that Austria-Hungary was defeated. As a result, Germany left the war and Russia emerged victorious. This outcome of events has led to new difficulties and contradictions that you must face.
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Apres Moi Le Deluge – Europe after Napoleon’s victory over his enemies

Continuing the alternative history theme. Apres Moi Le Deluge depicts a world in which Napoleon Buonaparte retained power over Europe and the British continental blockade lasted into the 20th century. But during this time, the French Empire managed to weaken and potential rivals are already waiting for the opportunity to divide its territories among themselves. You are invited to join the enemies of Paris or take personal control of its armies and resources.
Pax Britannica: An Imperial Timeline – Britain still rules the seas

This mod is similar to the previous one. The difference is that the world hegemony there was not France, but Great Britain. The authors added fantastic elements, for example, branches of technology related to the fictional inventions of Nikola Tesla. With them, England was ahead of all other countries in terms of development. But the US and Japan are also not sitting idle and are already preparing for a new redistribution of the world.
Cold War Iron Curtain – Cold War

The original Hearts of Iron 4 is about the preparation for the Great War and the most important combat actions of the Second World War. The Cold War Iron Curtain mod invites you to take part in the confrontation between the United States and its allies against the USSR, which began immediately after the surrender of Japan. In reality, this conflict lasted from 1945 to 1991 and went down in history as the Cold War. The change adds new branches of technology, unique units and expanded diplomacy aimed at finding a compromise between the interests of superpowers.
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Millennium Dawn: Modern Day Mod – modern history

If previous mods sent players into the past, this change offers the opportunity to lead a modern force. Hundreds of new technological branches, the details of the diplomacy of our time and of course wars with advanced weapons await you.
Rise of Nations is a 160 year old game

One of the biggest changes for Hearts of Iron 4. It covers the period from 1900 to 2060. You are invited to lead your chosen country through the World Wars, participate in the Space Race and emerge victorious from the confrontation between NATO and the Warsaw Division.
End of a new beginning – return to the 19th century

This mod takes us back to the 19th century, during the time of Otto von Bismarck and the American Civil War. The series is dedicated to this historical period However, Victoria, the gameplay is noticeably different from the mechanics of Hearts of Iron 4. Moreover, the change does not end in 1936, like the third “Victoria”, but continues to this day.
1300 – Wars of the Middle Ages

If the previous mod can be considered an analogue of Victoria, then this change is a variation on the theme Europa Universalis. It sends the player to the Middle Ages, where you must take control of one of the countries that existed in the 14th century. The choices include European powers, Russian principalities, and Asian states such as the Golden Horde.
The Road to 56 is an unofficial addition to Hearts of Iron 4

This modification expands the original capabilities of the game with new technologies, units, diplomatic subtleties and much more. And the timeline has been extended from 1949 to 1956. The mod looks like a big DLC for the original game.
New ways – more tricks, technologies and events

Another mod with additional content. Thanks to him, it becomes more interesting to govern countries that did not play a major role in the events of the Second World War. And thanks to unique national foci and special technologies, each state can play a major role in world politics or even become a new superpower.
BlackICE Historical Immersion Mod – maximum historicity

This adaptation reworks the balance of the original game to achieve realism in all its forms. Many new technologies have been added, combat on land, at sea and in the air has improved and artificial intelligence has become much smarter. The time of action has not changed: we are still confronted with the Second World War.
Formable Nations – create your own factions

In the original Hearts of Iron 4, you can select any country that existed in 1936. And with this mod you can create a new nation with its own characteristics, focuses and priorities, as well as strengths and weaknesses.
Old World Blues – strategy in the world of Fallout

The name of this mod refers to the add-on for New Vegas. And this is not a coincidence, because its action takes place in a post-apocalyptic world Fallout. You can control one of many factions, from the New California Republic to super mutants, as well as take over all of North America. The change implements the development of a nation, diplomacy and battles, taking into account the specifics of the Fallout universe.
Hearts of Azeroth – global war in the world of Warcraft

And this mod takes us to a fantasy universe World of Warcraft. 155 unique races await players: from humans and high elves to draenei and pandaren. Each nation has its own characteristics, priorities and global interests that must be taken into account when choosing a path of development, diplomatic intrigues and wars.
The Lord Of The Rings – Battle For Middle-earth

This adjustment offers the opportunity to conquer all of Middle-earth. You can choose any faction from Peter Jackson’s films and lead them to World Domination. Among the distinctive features of the mod one can note the mechanics of owning the One Ring, which gives unique bonuses, but turns other kingdoms against you.
Hearts of Ice and Fire – Game of Thrones

A large-scale modification that allows you to participate in the battle for the Iron Throne. The battle involves major houses such as the Lannisters, Targaryens and Starks, as well as their minor allies. They can join larger players or pursue their own policies. It is true that the better known dynasties are better developed – they have distinct characteristics and national focus.
Equestria at War – war in the My Little Pony universe

A funny mod that has recently gained popularity. Its action takes place in the world My little pony. A war has broken out between factions in the land of Equestria. You can take control of one of them and defeat all the others. Or, with the help of diplomacy, find a compromise that suits everyone.
+Easybuff – a series of cheats

If you found the original Hearts of Iron 4 too difficult or you want to experiment with its capabilities, you can use cheats. This mod allows you to activate them with a simple key press, without having to enter each code manually.
Customizations can not only improve the mechanics of Hearts of Iron 4, but also change the game beyond recognition. You can move the action to modern times, the distant past or the near future, and replay the battles for Middle-earth, Westeros and Azeroth. And the variety of new factions will allow you to play the game for hundreds of hours in real time. Not a bad option to brighten up the wait for the fifth part of the series.
Will you be installing mods for Hearts of Iron 4? Or would you rather play the original game? Share your thoughts in the comments.
Will you be installing mods for Hearts of Iron 4?
Source: VG Times

Christina Moncayo is a contributing writer for “Social Bites”. Her focus is on the gaming industry and she provides in-depth coverage of the latest news and trends in the world of gaming.