Hearts of Iron IV

Hearts of Iron IV

5,222 ratings
File Size
503.555 MB
Dec 1, 2016 @ 1:22am
Nov 17 @ 11:05am
52 Change Notes ( view )

Subscribe to download

"What if Germany had won World War 1?"

The Kaiserreich 4 Team are proud to announce that the most popular alternate history mod for Hearts of Iron II & Darkest Hour has now come to Hearts of Iron IV! Originally thought up by Sarmatia in 2005, the mod has since developed into one of the most in-depth alternate history mods, with thousands of new events, new graphics, new countries and even new mechanics! Rewrite history (again), but this time in Hearts of Iron IV!
So onwards all and enjoy!

*An immersive alternative history scenario
*A completely new political system including party popularity effects and stability levels
*Reworked map with new states and provinces
*Ten new ideologies
*Thousands of new events that offer a wide range of different possibilities
*50+ new focus trees
*New coloured portraits for country leaders and military leaders
*Tiered system of military and civilian ministers
*Hundreds of new companies and minsters for all countries
*Custom UI giving more options and more information
*Thousands of handmade GFX’s for ideas, focuses and more
*Dozens of new 3D models

*Even more events
*Focus trees for every country
*Overhauled technology tree
*New equipment and unit types
*Unique 3D unit models for every country

The Hearts of Iron IV version of Kaiserreich is still in alpha and yet it already contains thousands of events and dozens of focus trees so inevitably there will be mistakes, please report them here: https://github.com/Zankoas/kaiserreich/issues in as detailed a way as possible. Please don't report them anywhere else, it makes our lives much easier when all bug reports are in one place.

The optional, but recommended, Kaiserreich Music Mod can be found at:


Progress Reports:



Want to help out? Want to be a beta tester? Want to meet KR fans just like yourself? Join the KR discord: https://discord.gg/013cqzfpWMRLqnvHr

Converted countries with focus trees:
American Union State, Austria, Bharatiya Commune, Bolivia, Brazil, Bulgaria, C.N.T.-F.A.I, Canada, Carlist Spain, Centroamerica, Chile, Colombia, Combined Syndicates of America, Commune of France, Denmark, Dominion of India, Ecuador, Fengtian Government, German Empire, Hawaii, Ireland, Italian Federation, Japan, La Plata, Lithuania, Mexico, Mittelafrika, Mongolia, National France, Netherlands, New England, Ottoman Empire, Pacific States of America, Paraguay, Peru, Piratini, Poland, Polish-Lithuanian Commonwealth, Princely Federation, Romania, Russia, South Africa, Socialist Republic of Italy, Sweden, Transamur, Ukraine, United Baltic Duchy, Union of Britain, United States of America, United Provinces, Uruguay and Venezuela

Though these countries are "done", that doesn’t mean we have stopped working on them, expect many revisions and improvements to come. Also, some countries have more than one focus tree, if you can find it…

Converted countries without focus trees:
A.O.G., Australasia, Caribbean Federation, Legation Cities, Philippines, Shangqing Tianguo and Spain.
Note that not all countries here will get focus trees soon, but we are working on doing as many we can.

Thanks for reading, and we hope you enjoy the new Kaiserreich!

- The KR4 Team: ~mw~, Ahearne, Akamber, Anbory, Autovonbismarck, BattleSarge, Beelzebub, Blackfalcon501, Cinzya, CrazyZombie, DDago, Denizz, Flamefang, Gibzit, Herkles, Indyclone, Jeankedezeehond, Kaiserbot, Kraken, Medizine, Nijato, OperationsManagementDecisions, PPsyrius, Packard, Raptor Jesus, Rinbro, Rylock, Sea Lion, Skullcrusher, TheBeezKneez, TheBlackWinds, Thomahawk2k, VirtualHummingbird, Wyandotte, Zankoas

Also make sure to check out following mods:
Russian locals - https://steamcommunity.com/sharedfiles/filedetails/?id=1151467921
Popular Discussions View All (619)
16 hours ago
country issue
Nov 20 @ 2:10pm
German Empire in the east?
Nov 19 @ 12:57am
Puppets puppeting?
< >
Zankoas  [author] 51 minutes ago 
@Vlade Not revealed you
@𝕶𝖆𝖔𝖗𝖚 𝕳𝖊𝖎𝖜𝖆𝖏𝖎𝖒𝖆 Bug report I think?
@Shard It's not ideal I agree, something we want to work on
@René Descartes Oops...
Bukabuck 2 hours ago 
Can you make new separate countries for puppeting like Pakistan, Crimean Peoples Republic (Was a real republic in our world in 1917), Mountain Republic, Transcaucasian Federation, etc
dtx-vs41 3 hours ago 
A French version please
54e_TNTDragon11 13 hours ago 
v I am guessing they won't update that since China update could change a LOT of it.
René Descartes 14 hours ago 
Hey! Just a heads up for the mod description. The Legation cities are listed as converted countries without focus tree, but they do have one since the last update, do they?
Shard 16 hours ago 
I think you shouldn't be able to instantly annex France/Germany after defeating them, it's really messed up 'cause it doesn't include war participation. Also it messes up the map. A lot.
Bit weird that the Krupp Monopoly national focus for Germany makes the that company unseletable as an industrial Company, and makes another company selectable, called "Emil Lang" which when I looked it up was apparently the name of a WW2 Luftwaffe fighter Ace.
Starzonedark Nov 21 @ 9:52am 
@Vlade America Has A Rework In The Works
Vlade Nov 21 @ 9:36am 
@Zankoas Since I assume you are done talking about Italy in your progress reports what is the next region you will focus on?
klarken1 Nov 21 @ 9:28am 
@Mattebubben this is why you should play without ironman on, and use console to fix bugs so your playthrough isn't wasted :)