Hearts of Iron IV
by Paradox Development Studio · 6 Jun, 2016
1,601 downloads
About the Game
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 Hearts of Iron IV, you can plan the military strategy almost down to the rivets, as you design division templates for your armies, research new modes of production and means of destruction, set out factory instructions and pursue political objectives. Almost no part of the war goes untouched as you guide a nation of your choice through humanity’s darkest hour.
This purchase comes with the Hearts of Iron IV base game as well as three expansion packs:
- Death or Dishonor: focuses on eastern and central European middle powers
- Together for Victory: focuses on British Commonwealth nations
- Waking the Tiger: focuses on China and Japan
Screenshots
6 images
Version Information
Steam Patch Notes
Official update history
Generals!
We’ve just released a small hotfix (1.19.0.1) to address two of the issues that we’re seeing right now.
There was a particular crash related to the Spanish civil war kicking off into a four-way civil war and the new Army HQ feature.
There was an issue where the TaoG DLC icon in the main menu wasn’t lighting up properly if you have the DLC unlocked.
Both of these should now be fixed.
Crashing and MODs
We also can see in our reporting telemetry that most other crashes players are experiencing right now are related to playing with mods. If you do crash, and you are 100% certain that you’re NOT playing with mods, please submit your crashes in the crashreporter tool so we can look into fixing them.
Balance and stat bloat
We hear your concerns with balance & stat bloat, and we’re looking into this. We also see the complaints about command ability cost being affected by the general planning skill, causing in rare cases the ability cost to be pretty much free. This was unintentional and will be reverted in 1.19.1.
More patch
We’re already working on Patches 1.19.1 and 1.19.2.
Our aim is to release the former (early) next week, and 1.19.2 should be not too far after that.
PATCH NOTES
Stability & Performance
Fixed a CTD when Army HQ units were destroyed in combat under specific conditions (risks happening in, for example, a 4-way Spanish civil war).
Bugfix
Main menu icon for TaoG now correctly shows ownership.
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 v1.18.1.0.9197 (01c8)
To install Open Beta client, follow the instruction below:
Right-click the game in your library
Select Properties from the drop-down menu
Select Game Versions & Betas
Select the beta branch called open_beta
If you are already on the Open Beta client, you should get an update automatically.
Finally, to report any issues you find, in relation to this beta, please use the bug report forum and make sure to include the version you’re using. That way our Jira won’t go nuts trying to figure out what bug report belongs to what.
[img src="{STEAM_CLAN_IMAGE}/9948323/4888b9432c76fd54ffe94cbad015047602d11201.png"]
Open Beta Update V Notes
Gameplay
Made lend lease default to max amount for 'once' and to 100% for 'percentage' modes
Updated supply tooltip to show more careful where all supply is coming from
Stability & Performance
Fixed performance in very large scale naval battles (1000+ ships)
Fixed a dx11 rendering bug
AI
Fixed a bug where England could not build improved battleships
Extensive rework of italian naval equipment
The AI will now train their troops more often
Updated generic taskforces so they are a bit more sensible
The AI will try to train their ships a bit more opportunistic
The AI will be a bit more sensical with picking a homebase for its standby fleet
Added logic to prevent the AI from assigning too many patrols to support naval invasion
Modding
AI objectives will respect blocked naval regions now and not consider them for naval mission assignment anymore
Bugfixes
Fixed a bug where ships were partially considered for supply need
Fixed a bug where USA was unable to build 1940 CVs
Fixed a bug where a strike force sometimes gets stuck on an invalid target and stops working
Fixed a bug where wrong snow modifier values were shown + fixed a bug where the leader snow adjuster didnt work as intended
Snow attack penalty is now shown on the move-arrow tooltip
Removed legacy plane techs from BBA-enabled starts for 36 minor nations
RI Bolzano in the 1939 OOB now uses the correct ship_hull_cruiser_2 (Bolzano Class)
Convoy raiders won't join or reinforce a combat unless there are enemy convoy's to shoot at
Fixed a crash related to carrier airplanes being deployed
As you were!
(And try to leave this place in one piece while we're out!)
Here’s your first update since we released Peace for our Time last week. Fire up HOI, annihilate your enemies, get your puppets under control and connect with your allies. Then, let us know your thoughts, and, should you find any more bugs, remember to drop them in the HOI IV Bug Reports forum.
Gameplay
- The Bohemia formable now uses a golden colour
- Poland now has a small branch that gives them access to Czech MIOs/Concerns
- Swapped several focus icons from the CZE political communist branches that used mismatching art from the Soviet 2D art pack
- Added a new focus to the Czech tree - "Wielding the Hammer" which gives a new idea
- Added a new focus to the Czech tree - "Emergency Measures" which gives a new idea
- Added a new focus to the Czech tree - "Demand the Czech Corridor" which allows Czechoslovakia to demand land from Austria
- Completing "Contact the Czech and Slovak Legion" now gives a number of aces
Bugfix
- Fixed a bug where "End the Oppression of the Hungarian workers" required the wrong state (León, Spain instead of South Transdanubia, Hungary)
- Fixed an issue where the Skoda tank MIO would by default be assigned to your Armored Car when creating a variant and producing it
- Fixed several typos in names and descriptions
- Fixed an issue where the Protektorat Bohmen-Mahren could reach 7 research slots in the 1939 bookmark
- The "I Didn't Hear No Bell" achievement can now be unlocked after changing cosmetic tag
- Fixed an issue where puppet Slovakia changing overlord from CZE to GER would not correctly update their cosmetic tag
- Fixed an issue where the "Divided Nation" spirit would not disappear if the very last decision was interrupted
- Fixed an issue where two Slovak Navy Chiefs had the same Trait, used the same generic portrait, but had varying costs
- Fixed the tooltip for the focus "Demand a Corridor to the Soviets"
- The Skoda inlay window should no longer overlap with some focuses when going down a specific political branch
- Correcting small mistake in what Czech word for "Daddy" was used for Tatíček Masaryk
- Replaced modifiers for Czech special projects that were not working
- Corrected the year in the localization of a focus from "Revert the 1926 Anti-Military Laws" to 1927
- "Realize the Polish Czechoslovak Confederation" now requires Poland to be at war with the same nations Czechoslovakia
- Rebalanced Slovakia Army Idea
- The event to demand Katowice from Poland now uses the correct option text
- Corrected the localization for a Japanese MIO to use correct special text characters
- Corrected the localization for the "Tatíček Masaryk" focus and "Ceské Slezsko" state name
- Fixed a typo in "Smaller Air Plants" focus
AI
- Adjusted German AI to produce enough transport planes
- Added new AI strategy for Slovakia so they will help Germany with the Eastern front
- Fixed some inverted ai_chance blocks when puppeting Hungary
- Add some more granular AI chance modifiers to a number of Czech events
Here’s a small hotfix for Warships of the Pacific, 1.17.5.2
Patch notes:
Bugfix
- Fixed issue causing only a single support model to be shown in division designer
- Fixed a bug where AI or other players updating division templates would be affecting your template updates (UI only)
- Added several missing tank pools for various tank models so they show up correctly
- Fixed an issue where a debug 3D model would show after disabling equipment in the division designer
Here’s a small hotfix for Warships of the Pacific, 1.17.5.1.
Patch Notes:
Bugfix
- Fixed incorrect ordering of some infantry models which caused some nations to display the generic 3D model
- Fixed an issue where the M24 Chaffee (USA) model shows up first in the list for Great War tanks if you have NSB disabled
Small update on No Compromise, No Surrender | Patch 1.17.4. Very recently we started receiving reports of certain Tech Bonuses stacking too much. We quickly looked into this and discovered that this was clearly not working as Designed. Hence, this small Hotfix:
Bugfix
Fixed a bug where research bonuses were no longer claimed (and thus always active)
Current Release
23698426
Uploaded Jun 13, 2026
Additional Files
DLC Unlockers (Legit Owners)
1 file · For legitimate game owners
System Requirements
How to Install
dowser.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
7.1 GB
23698426
48D0F559
2c0eb033b2430d3865a7561d2f8079cf22c726d00b4700afe2bbbfa9b6fb342f
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Download Hearts of Iron IV for PC with a direct link or via torrent. Get the full version of Hearts of Iron IV for free. Hearts of Iron IV is a Simulation released by Paradox Development Studio.