Hearts of Iron IV

Hearts of Iron IV

BlackICE Historical Immersion Mod
21,234 Comments
Ærès 12 hours ago 
Good job, thanks for all.
Where are the Czecho tanks (Pz35t/38t) after the focus "Fate of Czechoslovakia" ?
Greszko 27 Oct @ 11:33am 
Nothing's better than unhistorical requests for historical mod. What else? Overhaul for german navy because it can't defeat UK?
Sol Inherent 26 Oct @ 2:23am 
you should form reorganized china exactly because of this
The Bird ..I.. 25 Oct @ 11:06pm 
Food needs a overhaul. Playing as Japan and conquering China it is impossible to keep up with food demand.
OskariusMacadamianuss 25 Oct @ 6:07pm 
Thank you for your advice! Changing the language from german to englisch and removing the german translation mod fixed the issue for me:steamthumbsup:
Sol Inherent 24 Oct @ 12:08pm 
do NOT play with any other mods and play on english pls, that is not what normally happens
OskariusMacadamianuss 24 Oct @ 9:09am 
The german AI is really weak. I played as Italy and the Sovet Union and they couldnt even beat France. They had like 60 divisions in may 1940 and in 1941 they also didnt even have enough men in the field to start Barbarossa.
Zerberr 23 Oct @ 3:25pm 
I suggest removing "Russian road" song from your playlist. It's from 2011 and is VERY out of place in HOI4.
There's one instead if you may need replacement - youtube.com/watch?v=2t3NAT3KiF8
it's from 1940 about "samovars" (actually about rifles/SMGs)
darthkenson  [author] 22 Oct @ 5:45pm 
@Lord Tareq Are you SURE that you have TRAINED all of your new air wings as high as possible before deploying them to combat zones?
Lord Tareq 22 Oct @ 11:14am 
Allies still have over 4000 airplanes over belgium in may 1940, luftwaffe loses 10+ planes for every allied plane shot down. In a week the Luftwaffe is decimated... Would be great if the allies (and soviets too) had a significant airforce efficiency penalty at the start of the conflict reflecting history a bit more.
Dokkisokki 19 Oct @ 9:59am 
This mod would be so good if only it didn't have an horrid map
C0PG1VENGRE 19 Oct @ 8:03am 
@mk11 immediately. Do you want me to let the game play for a few days ?
mk11 19 Oct @ 2:38am 
@COP, Are you saying you can't access immediately or can't access even after you have let the game run for a few days?
Kniaz 18 Oct @ 12:07pm 
how work "support occupied civilians"??
Zerberr 18 Oct @ 11:19am 
Most of descriptions in Canadian focus tree is missing (looking like CW_air_bases_desc, but not all of them, some are there). Are they not created, or there's an error somewhere on my side?
C0PG1VENGRE 18 Oct @ 9:31am 
I still encounter the same problem. I start a save with Germany all good evertything works fine. When i save and then load the game i ca not acces the UI in the political screen, i can through the pop ups but not manually. Is this a bug or i have to do something ? Please help.
I encounter the same problem in the test version and the main.
jellyjam2 17 Oct @ 8:35am 
How does Japan get the motorcycle tech 'Type 97 Rikuo'? it is required for motorcycle units tech and for motorized recon tech, historically it was a licensed design from US based on the harley davidson but can Japan license such a thing from US? please advise
darthkenson  [author] 17 Oct @ 6:21am 
darthkenson  [author] 17 Oct @ 6:20am 
@ALL:

Test Version Updated
Saves Broken
Checksum 7d24
Luuzi 15 Oct @ 8:18pm 
Is it compatible with sheep's AI mod
darthkenson  [author] 15 Oct @ 1:00pm 
@etienne.antuszewicz English please
etienne.antuszewicz 15 Oct @ 9:36am 
Le jeu se lance bien mais mais il y des problèmes d'affichage du type political_power ce qui empeche de bien jouer
fridrix83 14 Oct @ 12:27pm 
Does anyone want to play online 1v1 or 2v2 in this mod?
darthkenson  [author] 14 Oct @ 12:09pm 
@fridrix83 English please
fridrix83 14 Oct @ 12:01pm 
кто хочет поиграть 1*1 или 2*2 пишите - может получится сразится!
mk11 11 Oct @ 2:20am 
Or are you reporting on the speed shown in the division designer. If you design a division using foreign tanks you do not have a model (may also be licensed) the designer gets it wrong but actual divisions are okay.
mk11 11 Oct @ 2:18am 
@Christopher. Do you have equipment shortages of trucks, vehicles, etc.
2003werewolf 10 Oct @ 9:37pm 
Anybody experienced crashes June 1940 playing Germany
ChristopherGW13 10 Oct @ 6:48pm 
im so confused why are my units so slow
2003werewolf 10 Oct @ 11:32am 
For two days it kept crashing. About 10 times. I switched to DirectX 11 and it playing normal no crashes
Sol Inherent 10 Oct @ 11:02am 
I think you would need to modify the localisation files to remove this
khs4701 10 Oct @ 7:13am 
Sorry to keep asking, I'm asking you again because I didn't get an answer to the last question. when modify the performance of the equipment and name it, the letters such as V1 and V2 are automatically added to the back. Is there any way to fix it? always appreciate your hard work:)
HonestOutlaw 10 Oct @ 6:45am 
I've been playing BI since HOI3, I just love this MOD. Thank you guys for your hard work, this is a masterpiece!
darthkenson  [author] 9 Oct @ 6:22pm 
@norgie All of the historical Tank Designs are found in the production menu right at the top next to the Historical SHIP designs. The designs are activated by researching the PRE requisite TECHS then spending ARMY XPs once that is accomplished.

However, as in the case of the German tank tree, certain models must be researched before advancing to the next highest, much like the Air Research and Naval research.

For example AFTER the Pz IIIa is researched, you cant go to the Pz III e model without getting the Torsion Bar suspension research done.

And so on.
norgie 9 Oct @ 4:31pm 
i was playing as germany, and it WAS showing tanks on the production thing but there was no option to even use them, and no tanks are showing up on the tank tech tree
darthkenson  [author] 9 Oct @ 3:41pm 
@2003werewolf TEST version was updated on Sept 28 2025
Sol Inherent 9 Oct @ 3:25pm 
only majors have tanks
norgie 9 Oct @ 3:06pm 
none of the tank designs are showing up in tank technologies, only armored cars, light vehicles, armor techs and AVR tanks.
Sol Inherent 9 Oct @ 2:43pm 
? research them, and then use the historical tank designs, accessable frm production tab topbar button
norgie 9 Oct @ 1:59pm 
and i GENUINELY CANNOT RESEARCH TANKS (i have no dlcs, i'm fucking broke) and i don't know how to fix this
ropuk 9 Oct @ 1:10pm 
This mod is pure pain and suffering i love it
Sol Inherent 9 Oct @ 11:22am 
what? can you send your save?
norgie 9 Oct @ 8:53am 
all my divisions keep getting FUCKING DELETED RAHHHHH
2003werewolf 7 Oct @ 8:55pm 
Did you update
2003werewolf 7 Oct @ 8:42pm 
Back dated to 1.16.9 but it crashed
ZHNNNNN 6 Oct @ 1:00am 
the ai are werid in naval production. They keep producing old destroyers and wont go for new. For example the US ai would keep producing somers class instead of new destroyers.
Raph 5 Oct @ 5:04am 
autism prime
Torden 3 Oct @ 1:37am 
It is hard to comprehend the amount of work put in to this mod, it is huge! Tried France and even in my second attemt I was steamrolled and fell inn weeks. As in history. Not sure to what degree one can alter historical outcomes with BICE but next up is Soviet Union. Remains to see how that turns ot.
The Bird ..I.. 2 Oct @ 2:36pm 
When playing Japan and taking over China food becomes a huge issue. It is impossible to feed your populace when in control of a majority of China as Japan.
gibbsi 1 Oct @ 12:09pm 
just wanted to say my thanks, this mod scratches my ww2 immersion needs like no other experience out there.