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Hearts of Iron IV

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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.

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Most popular community and official content for the past week. (?)

No Compromise, No Surrender - 1.17.4 Open Beta

8:25am

Hello everyone,

I am Batya, a game designer that recently joined the ranks to bolster the team working on Hearts of Iron IV. Before this I was already working at Paradox on another project though so I am no complete stranger.

With the nearing planned release for the 1.17.4 patch we decided it would be a good moment to release a beta version first. We have fixed a lot of issues with this patch and it’s always good to get some extra input before it goes live.

We’ve seen noticeable improvements across the board on all issues both bug fixing, multiplayer performance and AI performance. Right now we would like to get more feedback on what pain points are still present so that we can further look into any issues.

This Beta client is Musketeer v1.17.4.0.f1d3 (fe52)

To install the Open Beta client simply follow the instructions below:

Right-click the game in your library
Properties…
Game Versions & Betas
Select the beta build as mentioned just above here

To ensure proper testing make sure you disable all mods, thank you! And remember to report bugs normally in the Bug Reports[forum.paradoxplaza.com] section of the Forums.

We've encountered an issue when testing on Linux, so the open beta might not work on it.

- Batya

Balance

The Japanese focus Finish the Fight now takes 35 days and no longer unlocks an obsolete decision
The Finnish AI is now more likely to pick subdoctrines that fit and work well for them
Added a new national spirit for the Guangdong and Guangxi cliques to incentivise rushing the Liangguang Incident
Added a national spirit and focus for the Chinese Warlord States regarding Military Looting, slowing down production in exchange for a slight military boost
The Qing Empire now has access to warlord integration decisions to speed up the reduction of their puppets' autonomy
The Greater Iraq integration decisions now take 14 days instead of 30, and target controlled states instead of owned states
The Falangist Spanish bonus Eliminate the Carlists now lasts for 90 days instead of 60
Finland now starts with its fifth submarine, the Saukko
Adjusted the modifiers granted by the Putschminister trait
Adjusted the location of some starting resources in Brazil, and added a small amount of rubber production to Acre
Added one dockyard in Istanbul to represent the Taşkızak Naval Shipyard
Turkey - Moved the Turkish character Kamil Tolon to the political advisor slot
Turkey - Added two new starting ideas regarding the First Five Year Plan and illiteracy. Added two new early-game focuses for utilising Sümerbank for more industry and tackling illiteracy. Reduced the focus time for Ratify the Six Arrows to 35 days
Japan - The missions for Naval Demands relating to building more ships now last 545 days instead of one year
The communist shared Baltic focus A Revolutionary Cabinet now takes 35 days
Overall org gain rate in large unit tactics has also been nerfed from 0.2 to 0.1
Latvian Ugonkrusts divisions are now militias, and their national spirit Fascist Paramilitaries now gives a slight boost to militia attack and defense
Historical Afghanistan can now seek investments from both the Axis and the Allies, provided that they expel the nationals of the faction they sought investments from first
Increased energy cap for factories from 6 to 6.6
Aussa - The focus Every Man a Warrior now unlocks militias
Portugal - Boosted the amount of democratic support gained from the national spirit British Influence
The Romanian national spirit Iron Guard now grants a 5% recruitable population factor bonus
The Portuguese focus Portuguese Legion now also grants a one-time research bonus to Military Police, and the national spirit granted also gives 5% core defence
The Soviet Union now starts with -50% land mastery gain. This can be removed with Lessons of War. Purges make the malus worse, while some focuses make it better
Reduced 1936 starting static AA in England to a more historically accurate count

Multiplayer

Significantly reduced the amount of commands being sent in multiplayer. This should help players with weaker internet connections

Gameplay

New feature: You can now select which backgrounds you want to have shown in the main menu
Greece - The focus An Orthodox State can now be taken when going down the absolutist royalist path, and grants different bonuses
Congo - If the Barotse Litunga has been approached before the war for liberation commences, Yeta III will now become available as a field marshal
Added the option in the Afghan historical branch to swap out the Prime Minister for another Royal Successor
The Greater Mongolian formable nation now includes the state of Hebei-Chahar
Added a new focus for Nationalist China in the air branch to open AFAMF factories, granting military factories and a small bonus to light airframes
He Yingqin now becomes available as a general for Nationalist China after completing the focus Crackdown on Corruption in the army branch
China can now rename a few Manchurian cities after recapturing them
Added a bicycle division namelist for Japan
Reforming the Chinese Empire as the Kumul Khanate or Ma Cliques now provides different flavour versions of the cosmetic tag
Added an additional focus to Sinkiang's unique subbranch
Added an internal politics subbranch to Khotan Ma
Added two additional focuses to the Qinghai Ma's unique subbranch
Added a focus for the Qinghai Ma to rebuild the Ninghai Army
Added an event for imprisoning Zhang Xueliang as Nationalist China
Added a unique focus tree subbranch for the Yunnan Clique
Monarchist Portugal can now inherit a few Brazilian characters when reuniting the kingdoms
Added the ability for a player puppet Mengkukuo to ask Japan, through a decision, to launch the Suiyuan Campaign
Manchukuo can now request the annexation of other Japanese puppets in China through decisions when going down the Chinese Leadership path in the Obedience branch
Added the ability for Brazil to establish and develop Rondônia
Added a new focus to the Brazilian industrial branch to found the Companhia Vale do Rio Doce, increasing steel and aluminium in Minas Gerais
Added the ability for a westernising Iranian state to secularise, and made the choice between the different democratic leaders more interesting
Completing the focus Unified Kurdistan now grants additional core states
Fascist Turkey can now make Nihal Atsız their country leader after completing the focus Turanist Ambition
Added Etibank as a new industrial concern for Turkey
Updated the Iraqi Military Branch to be more flavourful, giving them the ability to gain the river navy bonus, among other things
The Iraqi focuses demanding Syria now require annexation instead of puppeting
Updated the Kurdistan branch for Iraq to have more flavourful effects, such as the ability to train militias from the Peshmerga focus, and added the ability to take Eastern Syria through a border war
Added a new industrial concern and two new military advisors for Iraq
Added two new focuses to the Iraqi industrial tree for expanding the Cotton and Cement Industries
Afghanistan - Added Abdul Hadi Dawi as an advisor for the Amanullah Khan branch
Vichy France now has access to the political advisors it should have
Vichy France now no longer has access to generals who fought with Free France
Added one new Air Chief and two new High Command to Vichy France
Added two more focuses to Iraq regarding Sunni Dominance and Shia Unrest
Added a new focus for Afghanistan in the democratic branch to Ally the Young Afghans and gain more democratic support and advisors
Added two capstone focuses to Iran
Added two new decisions for Saudi Arabia and Oman relating to modernisation initiatives
Added four new political advisors for Iraq
Added a new shared national spirit and joint focus tree for the Ma Cliques
Italy - If King Vittorio Emanuele dies while being a national spirit, he will be replaced by a national spirit version of Umberto II
Repairing ships can draw local supply if not enough is available from their home base. This will only ever consume leftover supply

Show energy consumption modifiers in the energy resource tooltip
Adds more information to the Spymaster operatives slot tooltip
Adds an effective change clause to the Balance of Power tooltip
Adds disabled states and new tooltips for Repair Now buttons for task forces and ships
Japan - Added an explanation of which levels exist for the factions in the Imperial Influence system when hovering over the Emperor in the focus tree inlay window
Fixed an issue where the convoy protection map icon efficiency tooltip would repeat the same information for every task force in a fleet
Model Selector buttons now toggle
Stockpile data is now sorted
Afghanistan, Iraq - The Free Arabian and Turkestan Legion decisions now properly show their infantry equipment cost
Added focus branch navigation buttons to the Indian and Iranian focus trees
The Romanian focus White Squadron now has a more appropriate focus icon
The logistics window now sorts the stockpile

Fixed issues where Japan would keep the Potsdam Conference and National Defense State spirits after being puppeted, and made the US more likely to puppet Japan and less likely to force a government change when they surrender through their focus
If peace is accepted between China and Japan through the decision and subsequent events, truces are now also added with HBC and KUM, and the Japanese AI will be less likely to attack and antagonise Chinese nations
Fixed an issue where ships could perform training missions while outside the range of their home base
Naval AI - Fixed an issue where task forces would not move closer to their active regions, even when the home base was set nearby (this should make strike forces better at catching up to naval combats)
Increased importance for the naval invasion defense goal
Tweaked AI to only research coal efficiency when struggling with energy
Improved behaviour of strike forces when engaging spotted enemies
Improved Naval AI reasoning for the use of engagement rules, and added scriptable values by mission (risk/aggressiveness)
Improved German AI efficiency with its air force during the Phoney War, Battle of Britain, and Barbarossa
Improved AI choices around new coal technologies and state buildings. They will research new technologies and construct new buildings when clearly needed
Adjusted Air Base Access AI acceptance logic. AI should now be less accepting of Air Base Access, especially across ideologies

Modding

Fixed triggers is_demilitarized_zone and is_border_conflict crashing when used in any_state trigger
Added `energy_ratio` trigger to see the energy fullfilment on a country scope, returning between 0 .. 1
Implemented `only_imported` for `has_resources_in_country` trigger

Bugfix

Fixed a bug where the map was brighter than intended
Fixed a bug where random rolls in events would always roll the highest possible result
Fixed a bug where an incorrect tactic name was used in infiltration tactics
Correctly updates the research speed tooltip when tagging between countries
Fixed an issue with tech bonus claiming that caused asserts
Fixed a CTD when a unit given from an exiled Country A to Country B was standing in Country C, which was also exiled
Fixed the High Capacity Electrical Grid tooltip displaying +10% instead of +10% per infrastructure
Faction color now correctly follows the leader's color dynamically if not overridden
Fixed an issue where the Goes To tooltip would show the wrong country
Fixed resource-specific resource rights
Polish AI will no longer take Boost Monarchism decisions if monarchism conditions are not met
Poland can now access their Habsburg Alliance focus if Joseph August von conditions are met
Requesting the South Atlantic Islands now correctly targets the appropriate country
Fixed an issue where the Chinese Expedite the Political Tutelage decisions could be repeated in states that had been lost and recaptured
PHI: The Philippines will now be granted independence if they peacefully complete the American Intervention
PHI: You will no longer lose the Reino de Filipinas or Hispanic Empire tags when completing the Treaty of Manila while at war
Fixed an issue where the Spanish Carlists would not receive the correct 3D unit models when choosing a Habsburg monarch
Fixed a few instances of broken localisation in the Italian tree
Fixed an issue where Moldovan characters would appear as debug strings
Fixed an issue where the faction goal Fortify Okinawa would check naval forts in the wrong province, preventing completion
Fixed an issue where Nationalist China puppeting a warlord after completing Appoint Sympathetic Judges would apply the spirit to itself instead of the warlord
Fixed an issue where the Nationalist Chinese focus The Seas of Tomorrow would not grant the promised Naval Facility unless Hainan was controlled
Fixed erroneous mastery gain bonuses in a few focuses
Fixed Ye Jianying's portrait not showing if La Résistance was not enabled
Fixed an issue where the Japanese army faction would not affect CAS production cost if BBA was disabled
Fixed an issue where the Japanese Armored Car designer could appear when La Résistance was disabled
Fixed an issue where the Spanish focus Join the Allies would ask multiple countries to join a faction simultaneously and trigger an incorrect news event
Disabled an event when No Compromise, No Surrender is enabled that dismantled the United Front after defeating Japan, blocking China's focus Victory over the Invaders
Fixed an issue where the Afghan and Raj focuses targeting Sinkiang would not grant war goals on KHM if they occupied the target territory
Fixed the Establish a Marine Corps faction goal not granting the listed general reward when only amphibious tank technology was available
Custom Game Rules - Fixed the Democratic AI Strategy of Lithuania incorrectly using the Latvian description
Fixed an issue where Nicaragua was missing two political advisors
Fixed issues where certain countries intended to form Central America and Gran Colombia could not do so, and added Balta-Tiraspol as a target in all Greater Lithuania and Greater Commonwealth focuses
Fixed several instances where event options were unselectable for the AI due to being scripted with factor = 0 instead of base = 0
Fixed an issue where Chile could have multiple Mapuche Conflict spirits simultaneously
Fixed an issue where the hidden event to change Mao's portrait would retire the character and incorrectly swap the portrait
Fixed an issue where some victory points would be incorrectly named after forming Greater Greece
Eleftherios Venizelos passing away while Greece is democratic will no longer kill the country leader unless it is Venizelos himself
Fixed issues where Mexican characters unlocked through focuses were incorrectly transferred to breakaway countries during civil wars
Fixed missing localisation strings for the Nanjing Presidential Palace
Fixed an issue where the Sinkiang focus Reestablish the Guominjun would send the wrong event to China
Fixed an issue where warlords could not access the Morozov Design Bureau if NCNS was enabled
Extended speed bonuses from sub-doctrines to motorised support units, including motorised and truck-drawn rocket artillery
Fixed numerous "the the" duplicate word typos throughout localisation
Fixed a missing officer trait in the Expand Infantry Forces faction goal reward description (AR-69633)
Corrected multiple instances of Poznan to the proper Polish spelling Poznań (AR-29242)
Fixed naval grand doctrines being incorrectly set based on doctrine tracks
Fixed an issue where manually set equipment icons and models would not persist during auto-upgrades
Removed Cancun, as it was not yet founded, and replaced it with Chetumal
Fixed Magnatron typos and renamed it correctly to Magnetron
Fixed an issue where democratic Japan could attract industrial investments from the same major country multiple times
Fixed an issue where the Warlord Demands Subjugation event would always list China as the sender
The Portuguese focus Expand the Chinese Territories can now also be taken if Macau is controlled by one of their subjects
Fixed an issue where the Lithuanian focus Restore Greater Lithuania would be unavailable if any target states were already cored
Congo gaining a Brown Water Navy will no longer be treated as being in South America
Austria can no longer liberate other countries' subjects when forming the Central Powers
Fixed an issue where a separate peace between Japan and the Soviet Union would grant Full Focus on the West to Japan instead of the Soviets
Fixed a bug where the bonus to organisation gain rate was applied twice
Fixed an issue where warlords could demand subjugation of Chinese states that were already subjects of foreign powers
Raj - The focus Riches of the Raj now correctly includes both coal and chromium
Added missing cores to the Finno-Ugria formable nation
Fixed the Expand Our Armored Force faction goal tooltip to include the Armor Officer reward
Raj - Fixed an issue where dams gained from Industrialise the Ganges would not appear on the map
Fixed The Juannines achievement so it works correctly with La Résistance enabled and only targets original Spanish core states
Fixed Burma's military advisors having incorrect costs
Fixed the CHI focus Fund the Marine Corps using Invasion Preparation Speed instead of Invasion Preparation Time
Fixed various issues with the Neo-Mesopotamian formable nation
Fixed several naming issues for the Great and Eternal Nordic Empires
Fixed the icon for Improved Anti-Tank in the Philippines
GRE - Fixed missing tooltip GRE_host_soviet_bureaucrats_in_greece_tt
Fixed missing French localisation for the Husqvarna weapons factory focus in the Swedish focus tree
Reduced the speed of Elephantry units
Fixed broken tooltip localisation in Form the Nordic Council
SWE - Fixed the Question Neutrality event title not checking the current German leader
Removed an incorrect period from a focus name
Fixed Appoint a Spy Master displaying incorrect faction goal rewards in its tooltip
BEL - Fixed Vandervelde's death event missing its trigger
Fixed an issue where the Coronation of Mohammad Hassan Mirza event would not correctly make Persia non-aligned
Fixed an issue where the Philippines could repeatedly switch between the Maphilindo and Hispanic Empire tags
Fixed Claire Lee Chennault quitting immediately after being hired
A Trotsky-harbouring Mexico that had not invited Trotsky into government and sought to join the Comintern will now send him to Moscow instead of leaving him permanently unavailable
Afghanistan - Qargha Dam will now appear in the correct location
Fixed an issue where female characters in Arabic countries could incorrectly have ibn instead of the linguistically correct bint in their surnames
Fixed an issue where AI strategy values from the Iraqi focuses Nationalize Anglo-Iraqi Oil Company and Anglo-Iraqi Oil Expansion would not properly apply to the UK
Raj - Restoring the Timurids as the Raj now also grants cores on their former Transoxianian and Caucasian territories
Afghanistan - Fixed an issue where some focuses mentioning claims did not inform the player that claimed states could be cored after capture
Scaled the number of technologies required to complete the Develop Joint Research Practices faction goal based on the faction's average researched technologies
Gunther "Adlerauge" Rall has his portrait restored
Bypassing Clamp Down on Danzig and Ban the Nazi Party will now remove resistance and rename the city
Norway will now gain its two off-map civilian factories
Fixed an issue where Democratic Chinese faction invitation decisions would fail if China was not the faction leader
The democratic Chinese focus Shifting the Balance now has a small bypass effect to enable faction creation
The Afghan Oil Concessions now only grant access to oil in the selected states
Democratic China - The Stir Republican Sentiments decisions can no longer target warlords already affected by another democratisation decision
Fixed a few instances where Uruguay would fail to go fascist when set to do so in the game rules
Fixed an issue where Paraguay could fail to go communist when set to do so in the game rules
Fixed an OOS issue caused by mismatched international market prices
Fixed an issue where the faction goal to control the Bosphorus would construct forts in the wrong state
Turkey - Fixed an issue where the Kurdish State Management decision category would disappear when no mission or decision was active
Entering a war now removes naval blockades imposed by either party
Fixed a bug where equipment used by the supply system was not properly returned, causing trucks to disappear
Fixed an OOS issue in peace conferences
PRC - Fixed an issue where not all stated rules were applied when completing the focus Burn the Paper Tigers
Fixed multiplayer performance issues caused by excessive naval mission command generation
Fixed an issue where Mexico could be annexed by one of its revolts even while winning if both sides shared the same ideology
Fixed map mode brightness regression caused by legacy rendering changes

Hearts of Iron IV

461

I hope Paradox will do an lawsuit for black PR.

In Polish television TVP in show Polygraph if i used right word. Two pseudo journalists, accquised Paradox Entertainment for supporting Russia against Ukraine by selling Hearts Of Iron IV and worse is... They don't recognize what is an game with modification. https://vod.tvp.pl/informacje-i-publicystyka,205/wykrywacz-klamstw-odcinki,2335102/odcinek-107,S01E107,2695135 Here is URL but is in polish language. Is all about the one modification and modder, Paradox banned from every transmission etc. They d...

Deso.

18 minutes ago

General Discussions

Dev Corner 2601004 - TaoG

Jan 29

Previously: Dev Corner 2301003 - TaoG (Australia)

Generals!

It’s time for another Developer CORNER.

Just for the first couple of these, before we continue, I want to set some expectations and clear things up.
By now you know we have two main types of Developer post:

Developer Diaries

Give you more detailed insight into content that’s more or less finished and is being polished
Start appearing closer to release
Give you a chance to ask our developers questions, and perhaps even let us know if there’s anything glaringly obvious we missed
(and may still have time to either fix quickly, or already start planning to include in a future Patch; being a Day-x, or a War Effort.)

Developer Corners, like this one, serve a different purpose.
They:

Need your feedback, specific to the DC
Should be short and to the point
May or may not include any images
May generally give you some idea of something that might come in future content, but it’s not guaranteed
Are not usually planned far ahead. Instead, if at any point any developer has something they want to get feedback on, we’ll pick an upcoming weekly slot, probably Tuesday or Thursday

Moving on to the Dutch East Indies! To start, we have the usual questions:

What are you expecting?
What’s your player fantasy?
Are there any characters or equipment that you want to see?

In addition to those questions, we are currently especially interested in hearing your wishes for the Loyalist Branch. What do you (not) want to see, what do you (not) like about joint focus trees, and what is your player fantasy as a Loyalist Dutch East Indies?

Hearts of Iron IV

1,169

148

Dev Corner 2601003 - Thunder at our Gates

Jan 27

(Previously: Dev Corner 2601002 - TaoG)

Generals!

It’s time for another Developer CORNER.

Just for the first couple of these, before we continue, I want to set some expectations and clear things up.
By now you know we have two main types of Developer post:

Developer Diaries

Give you more detailed insight into content that’s more or less finished and is being polished
Start appearing closer to release
Give you a chance to ask our developers questions, and perhaps even let us know if there’s anything glaringly obvious we missed
(and may still have time to either fix quickly, or already start planning to include in a future Patch; being a Day-x, or a War Effort.)

Developer Corners, like this one, serve a different purpose.
They:

Need your feedback, specific to the DC
Should be short and to the point
May or may not include any images
May generally give you some idea of something that might come in future content, but it’s not guaranteed
Are not usually planned far ahead. Instead, if at any point any developer has something they want to get feedback on, we’ll pick an upcoming weekly slot, probably Tuesday or Thursday

Review

Last week we kicked things off with our first Dev Corner of 2026 where we asked you about Siam, and we got so much good feedback that we decided to publish another Dev Corner (26001002). If you missed it, or want to know more about our thoughts on Limited Wars, Regional Power Fantasy and Internal Faction Mechanics, give it a read.

Moving On

With that out of the way, the second topic we’d like your thoughts on is Australia!
The next DLC of Expansion Pass 2, Thunder at our Gates is coming in Q2, so while we continue to work on that, we’d like to know:

When you think of playing Australia, what do you like about how it is right now? What would you want us to add, remove or change?
Also important: what’s your player fantasy? And lastly, are there any interesting characters or equipment they used that you really want to see?

And perhaps this will provide a small amount of inspiration:

Hearts of Iron IV

833

219

Video

Le Fishe

DeadEyeDikk2485

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pushing in mouintins

so i am playing china and found it quite easay to push out the japanese and had kicked them out of korea and manchuria by about mid 1940 after that i spent about a year building up and getting some good divisons and then i attacked the communists. i made sure nonne of my states flipped and i lanched my attacks. but my offensive stopped in its tracks a few days in as after i took that state they get of the northeastern army i was pushing into mountions with stacks of about 10 divisions with effectivly infi...

Gribelflix

8 hours ago

General Discussions

HOI5

I love Hearts of Iron IV, but man, the learning curve was brutal. Getting into it felt like studying for an exam. I’m good at it now and really enjoy it, but it’s hard to ignore how dated some of it feels. When is Paradox going to give us HOI5 already? I just want the CK3 treatment, graphics improvements, a modern UI, better onboarding, without dumbing the game down. Because this old UI is honestly kind of unbearable at this point. I know my son won't get into HOI4....

Henry Cavill

3 hours ago

General Discussions

Workshop Item

State Interactions (In One)

< A r x y >

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Video

HOI4 - Kaiserin Timelapse

𝐬𝐭𝐞𝐠𝐞

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Video

Hoi4 - The Winter War

✠Otter Von Bismarck✠

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Workshop Item

New Horizons

GIAMPIERX3

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Guide

Типы марионеток

Гайд по марионеткам

че зыришь?

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Workshop Item

The Swamp Rises

IDK

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Light Tanks

Well, I think I found a bug. My light tanks are being built, but my light tanks are not being supplied to my divisions. Playing Germany, before I start going to war. I have no Mods either

reaver256

8 hours ago

General Discussions

Can you change your ideology to non-alligned?

I play as the netherlands but i want to change the ideology from democracy to non-alligned. Is it possible to do that? The netherlands dont have a focus tree.