Questions tagged [hearts-of-iron-4]

A strategic game in the World War II period.

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Does the Hearts of Iron 4 timeline follow the current time in real life? [closed]

I'm a new player and I saw that troops and timeline weren't moving at all.
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1 answer
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Where is the code in HOI4 that defines how an AI decides on events (e.g. "Split Czechoslovakia")?

I cannot find the code, that defines how an AI decides on an event that is triggered by another countries focus. In particular I cannot find how Germany decides whether or not to "Split ...
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Joining the Allies Bug

On Historical-AI, for some reason factions keep joining the allies while already at war, without being at war with the same nations as the allies. They also weren't guaranteed, and sometimes they even ...
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Why I did not get Treading the Narrow Path achievement as Netherlands?

I was trying to get "Putting the Raid on the Medway to Shame" achievement but also thought that I will get "Treading the Narrow Path" if I just survive till 1945. I was never in ...
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How to ensure I control France after its capitulation?

I was playing the Netherlands, took over part of China, Portugues, and Spain. After defeating Spain I attacked France from North and south and invaded it very fast almost completely myself. At some ...
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2 votes
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How do I change air wing composition on existing carriers?

When constructing aircraft carriers it is possible to assign the number and types of aircraft (fighter, dive bomber, torpedo bomber) to a carrier. How can I change the air wing composition once a ...
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Why are tier 3 submarines stronger than tier 4?

Why do tier 3 submarines have 52 attack while tier 4 subs only have 36 attack? Is the production cost alone enough to make tier 4 better than tier 3?
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2 votes
1 answer
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Does Encryption have an effect on the AI?

I know that decryption has a combat advantage and allows you to view information more accurately, but does encryption effect the AI? I imagine against a player it would prevent them from seeing ...
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3 votes
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4k views

How do I assume faction leadership?

In the new Hearts of Iron 4 expansion, man the guns, it should be possible to take over leadership of a faction. What are the conditions that need to be met to be able to do this, and how do you this ...
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Can experience of a division go up from a template change?

I've noticed that if I add troops or support companies to a division template their experience will go down (which makes sense because fresh recruits). So then does the experience of the division go ...
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2 votes
1 answer
874 views

How to score victory against government in exile?

TLDR: country without any army/terrain is doing evil stuff with diplomacy, I want them dead or at least to leave me alone. As unaligned Iran, I started war of conquest against Turkey. Few hundred ...
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How to prevent the second World War as Hitler

I have been playing HOI4 for a while and have the basic mechanics down to play that game somewhat competently. But I have heard that as Nazi Germany I could reform the Wiemar Republic and prevent WW2 ...
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Unable to Stream Audio via OBS Studio for HoI 4

I've been trying to get the game audio from hearts of iron IV streaming via OBS Studio (version 20.0.1). I have tried both the 64 bit and 32 bit versions My sound settings are correct as I have been ...
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7 votes
2 answers
1k views

Research Ahead of Time

I notice that you can build up some research time before picking a tech. However, each day tick also reduces how much time penalty (50% extra cost if the tech is still 6 months away as an example). ...
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1 vote
1 answer
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What does pausing the AI do in Hearts of Iron 4?

There is a console command known as 'ai'. When I enter it, a message is displayed 'AI has been paused'. Does this mean that all the AI nations stop doing stuff (stops production, construction etc.)?
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What happens if a naval invasion is repelled?

I.e. if a unit runs out of organization while attacking the coast. Does it die or does it return to the port from which the invasion was started?
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1 vote
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What is the difference between the fleet missions?

The mission a fleet is on affects its spread, but does it affect anything else? It looks to me that to raid convoys, Patrol (160% spread) is better than Convoy Raiding (120%) since presumably, I don't ...
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2 votes
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How to organize submarine fleet?

I created a lot of submarines as Germany to try to bring british industry to a halt by cutting off the supply. How to organize submarine fleets for best interception percentage? What are the tradeoffs?...
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expeditionary force problem

I had a small problem when playing as the UK. US send me 3 divisions in an Expeditionary force and when I went to the province they arrived at, they were under French control. It happened three other ...
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8 votes
2 answers
938 views

Can I change my trade ports?

As Germany, I'm importing lots of oil from South America. However, it's all being delivered to a port in (occupied) Holland, which takes it straight through the English Channel, and most of it gets ...
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11 votes
1 answer
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Benefit of creating puppets?

Some nations (Germany in particular) have national focuses that give you the choice between annexing a whole nation, annexing part of it and puppeting the rest, or puppeting the whole nation. Putting ...
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2 votes
1 answer
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What happens when separate wars with a common enemy end?

Recently I started playing Hearts of Iron IV as Sweden. Me and and the Soviet Union got into separate wars that had a common enemy (Norway). Norway managed to catch me by surprise and took over some ...
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9 votes
2 answers
26k views

What is the timeline of Hearts of Iron 4?

Title says it all, really: does HoI4 has the same timeline of HoI3, or has it been modified?
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9 votes
2 answers
28k views

What are transport planes good for in Hearts of Iron 4?

What are transport planes good for in Hearts of Iron 4?
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