Hearts of Iron IV — Latest Updates & Patch Notes
Hearts of Iron IV is currently the #35 most-played game on Steam, with a 24-hour peak of 52K concurrent players — ▼ cooling off (was #34 last week).
Last official update Jun 3, 2026 (today) · 12 updates in the last 90 days · 12 tracked here.
- Steam rank
- #35 ▼
- Peak (24h)
- 52K
- Genre
- Simulation, Strategy
- Developer
- Paradox Development Studio
- Released
- Jun 6, 2016
- Price
- $49.99
- Metacritic
- 83
- Steam reviews
- 275K
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.
View Hearts of Iron IV on Steam →
Latest updates & patch notes
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News
Hearts of Iron 4 just turned a "dangerously shippable" idea into a new system of frontline command, with a splash of HOI 3
The next Hearts of Iron 4 DLC, 'theater pack' Thunder At Our Gates, is all about "the art of organizing a campaign." Along with expanding on the potential for Australia, Siam, and Indonesia to act as key players in the WW2 grand strategy game, it allows you to deploy generals…
Read the full notes on Steam → -
News
Thunder at our Gates: Army HQs & Special Forces
If I were extremely funny, I’d start this off by typing something like “G’day mates”, but a simple “hello gamers” will have to suffice this time. Welcome to this dev diary, where I’ll take you through the new bigger feature coming with the next expansion, Thunder at our Gates…
Read the full notes on Steam → -
News
Developer Diary | Siam
Sawasdee khrap! Today we will go through the focus tree for Siam, today known as Thailand. ContextBefore the start of the game Siam had lost territory, mainly against the French but also against the English. Large portions of Indochina were under some form of control from…
Read the full notes on Steam → -
News
Developer Diary | The Republic of Indonesia and the National Revolution
Selamat siang to you all once more. This dev diary is once again brought to you by Pdx_lily, and this time I’ll be showing you all the revolution content for Indonesia. As per usual, everything here is still in development and may change. Underground Revolution Due to the…
Read the full notes on Steam → -
News
Developer Diary | The Dutch East Indies
Selamat siang, Sugeng sonten, Wilujeng sonten, Rahajeng sore, and Goedemiddag to you all! My name is Pdx_lily, and I will be your host for today’s dev diary about Indonesia, also known as the Dutch East Indies (do note I will use these terms, as well as “the East Indies” or “the…
Read the full notes on Steam → -
Patch
HOI IV | Open Beta Update VI
Generals! Here is another Open Beta Update for our upcoming Anniversary Patch, including some bugfixes, balancing and more naval AI improvements. We recently posted a survey as a way to check the community pulse, and it has given us interesting data. When looking at the data and…
Read the full notes on Steam → -
News
Thunder at our Gates: Ship Captains & Division Designer
Generals! It’s time once again to talk, even if I consider myself a man of action. In this dev diary we’ll go over these new Thunder at Our Gates Features: Ship Captains, and our Division Designer rework, which includes Regimental Support Companies. Ship Captains Ship Captains…
Read the full notes on Steam → -
Patch
Hearts of Iron IV | Patch 1.18.2
Generals! Batya here with another patch. The focus is around Czechoslovakia’s content that was recently released with Peace For Our Time. Besides that there have been a few crashes that were fixed and included in this patch. I also want to extend a special thanks to the…
Read the full notes on Steam → -
News
Developer Diary | Alt-stralia
G’day mate! Punchrullar and Mordred Viking are back again to give you the lowdown on the more radical ideologies down under: Fascism and Communism. Australia in this period was a relatively stable democracy, but there were certainly groups who wanted to see the nation take a…
Read the full notes on Steam → -
Patch
HOI IV - Open Beta Update V
Generals! Before we head out on our 4-Day LOA we wanted to give you another OB update. Give it a try, leave us a lot of feedback here, and we'll be back soon to take it all in and make potential adjustments. How to join this Open Beta: This beta client is Case Green…
Read the full notes on Steam → -
News
Developer Diary | Australia: Until the Tide of Battle Swings
G’day mate! From the trenches of game development, we, Punchrullar and Mordred Viking, finally emerge. The time has come for the land from down under to undergo its long-awaited revision, and for the nine year old Australian content to get a fresh coat of war paint. For those…
Read the full notes on Steam → -
News
Thunder at our Gates Available June 11!
Generals! Pack your raincoats and shorts because we are going to the jungles of Southeast Asia and the arid plains of Australia. Dark clouds gather and a rumbling can be heard in the distance; Thunder is coming. Today we announce the release date of our new and upcoming Theater…
Read the full notes on Steam →
Screenshots
About Hearts of Iron IV
Take charge of history’s greatest war machines in Hearts of Iron IV , a grand strategy wargame that challenges your strategic abilities and political insight. Refight World War II at the head of nation from the time period, building up an industrial powerhouse and a diplomatic alliance that will effectively wage war on ideological opponents. Hearts of Iron IV is more than a historical simulation. Alternate historical paths open up with almost every decision you make, from small ones such as where to launch your attack to crack open Fortress Europe, to large ones, such as whether to re-establish democracies or long forgotten monarchies. In…
Game details
- System requirements (minimum)
- Minimum: OS: Windows® 10 Home 64 Bit Processor: Intel® Core™ i5 750 | AMD® FX 4300 Memory: 4 GB RAM Graphics: Nvidia® GeForce™ GTX 470 (1.28GB) | AMD® HD 5850 (1GB) | Intel Iris Xe G7 (Tiger Lake) | AMD® Radeon™ RX Vega 11 DirectX: Version 9.0c Storage: 2 GB available space Sound Card: Direct X- compatible soundcard. Additional Notes: Mouse and keyboard are required. / Latest available WHQL drivers from both manufacturers/ Internet Connection or LAN for…
- Languages
- English, French, German, Polish, Portuguese - Brazil, Russian, Spanish - Spain, Japanese, Simplified Chinese, Korean
- DLC
- 26 available on Steam
- Official site
- www.heartsofiron4.com/
Frequently asked questions
- Is Hearts of Iron IV free to play?
- Hearts of Iron IV is a paid game ($49.99) on Steam.
- What is the latest Hearts of Iron IV update?
- The most recent official update is "Hearts of Iron 4 just turned a "dangerously shippable" idea into a new system of frontline command, with a splash of HOI 3" (Jun 3, 2026), categorized as News. The next Hearts of Iron 4 DLC, 'theater pack' Thunder At Our Gates, is all about "the art of organizing a campaign." Along with expanding on the potential for Australia, Siam, and Indonesia to act as key players in the WW2 grand strategy game, it allows you to deploy generals…
- How many people play Hearts of Iron IV?
- Hearts of Iron IV peaked at 52K concurrent players in the last 24 hours, ranking #35 on Steam's most-played chart (it was #34 the previous week).
- When was Hearts of Iron IV released?
- Hearts of Iron IV was released on Jun 6, 2016 by Paradox Development Studio.
- What kind of game is Hearts of Iron IV?
- Hearts of Iron IV is a Simulation, Strategy game, featuring single-player, multi-player, co-op.
Live player counts and update notes are pulled from Steam's public data and refreshed daily (last refresh: Jun 4, 2026). Excerpts are from official announcements; follow the source links for full notes. Hearts of Iron IV and all related assets are trademarks of their respective owners.