Hearts of Iron IV

Hearts of Iron IV

302 ratings
1.2.0 Test Map
File Size
16.026 MB
May 6 @ 9:54pm
Sep 4 @ 6:43pm
14 Change Notes ( view )

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1.2.0 Test Map

Update 1.2.0 Changelog

The majority of the work over the past 3 months has been rebuilding the process that makes these maps so that it can utilize more CPU cores and have better architecture in general so most of the improvements wont really be evident in the maps themselves.


- A brief summary of each country will be provided on the nation selection screen.
- Randomly Generated City names (They are awful but it's a first attempt).


- Majors are now calculated properly and will always appear on the country selection screen as majors.


- Strategic Regions will now be contiguous with themselves at all times. Gone are the days of strategic regions that have provinces scattered around. This same problem permeated all other kinds of entities such as states and supply regions and will no longer be a problem.

Balance Changes:

- N/A

Hey Everyone!

If you experience a crash, it would be very helpful if I could get a copy of your last save via discord or email.

You can e-mail me at:


Here is a Discord where you can get ahold of me too:


If you want to follow the project roadmap, you can do so on Trello:


Just a little about the project to clarify:

This is my personal project, it's just me, Elderbark, although i've had plenty of input from friends on what they think of my progress and where I should go with it that has informed it's current state, and without them encouraging me it wouldn't be where it is now.

What I'd like to do is continue to work on the algorithms and processes that built the current map and upload new maps regularly on a schedule of perhaps one every 2 or 3 weeks. These maps might be similar to the current one or drastically different depending on what I want to show off or test. I don't want to flood steam with dozens of mods, so it will be this current link that gets updated, so keep subscribed if you want to see where this goes!

Popular Discussions View All (7)
Aug 12 @ 3:56am
Jun 21 @ 9:10pm
Development assistance
May 25 @ 7:07pm
If a country guarantes another country and u declare war on it , the game crashes
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Elderbark  [author] Nov 19 @ 7:42am 
HEY GUYS: You may be wondering WTF HAPPENED TO THIS ASSHOLE?! well I moved to a new house and my wife is pregnant and I'm currently renovating my old house for sale and it's the holiday season so work is rather busy.

Once Christmas is over I'll have about half year of free time to refocus on this project. Thank you everyone for your support and suggestions!
Leste (Golden Rocket) Nov 17 @ 9:03pm 
How do you remove the provinces from the game without crashing?
NeeGertje Nov 17 @ 12:07pm 
i only get a 1.1.0 test map wich has half of the provinces owned by nobody so the countries are filled with holes. can somebody tell me how to get 1.2.0?
AmericanCat Oct 30 @ 3:38pm 
Some city names sound like actual cities but some city names sound like pure gibberish
Darkseus Oct 20 @ 9:22am 
Don't clear cache if you get a crash trying to play the game. Clearing cache somehow makes the game not start
Ash Oct 1 @ 8:21am 
Some nations crash my game after approx 3 days after justification of war?
Koleta Sep 23 @ 4:16pm 
update mod, 8 hammogay guys are waiting for this? or popobawa will do his job on YOU creator
Elderbark  [author] Sep 8 @ 5:58pm 
There are a lot of known issues with this latest version that I hope to clean up this week. Sorry for the headaches everyone.
LukeM25954 Sep 7 @ 7:21pm 
just untick "clean cache/directory" or something like that that pops up when rebooting after a crash, worked for me
Halfsuperset Sep 7 @ 1:29pm 
I can't use the mod anymore, when I try to launch it with just this mod enabled it pops up an error saying: Could not create or read directory C:\Users\Owner\Documents\Paradoxinteractive\Hearts of Iron IV/mod//newmod. Then the game crashes.