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Hearts of Iron IV
Paradox Development Studios Developer
Paradox Interactive Publisher
2016-06-06 Release
GameBillet: 43.90 €
Game News Posts: 505
🎹🖱️Keyboard + Mouse
Very Positive (236091 reviews)
The Game includes VR Support
Public Linux Depots:
  • Hearts of Iron IV Linux [135.44 M]
Available DLCs:
  • Hearts of Iron IV: Sabaton Soundtrack
  • Hearts of Iron IV: Together for Victory
  • Hearts of Iron IV: Death or Dishonor
  • Hearts of Iron IV: Sabaton Soundtrack Vol. 2
  • Hearts of Iron IV: Waking the Tiger
  • Hearts of Iron IV: Man the Guns
  • Unit Pack - Hearts of Iron IV: Axis Armor
  • Music - Hearts of Iron IV: Radio Pack
  • Hearts of Iron IV: La Résistance
  • Unit Pack - Hearts of Iron IV: Allied Armor
  • Music - Hearts of Iron IV: Allied Speeches Pack
  • Country Pack - Hearts of Iron IV: Battle for the Bosporus
  • Unit Pack - Hearts of Iron IV: Eastern Front Planes
  • Music - Hearts of Iron IV: Songs of the Eastern Front
  • Hearts of Iron IV: No Step Back
  • Hearts of Iron IV - DLC Subscription
  • Hearts of Iron IV: By Blood Alone
  • Hearts of Iron IV: Arms Against Tyranny
  • Country Pack - Hearts of Iron IV: Trial of Allegiance
  • Hearts of Iron IV: Content Creator Pack - Soviet Union 2D
  • Expansion - Hearts of Iron IV: Götterdämmerung
  • Country Pack - Hearts of Iron IV: Graveyard of Empires
  • Unit Pack - Hearts of Iron IV: Prototype Vehicles
  • Hearts of Iron IV: Expansion Pass 1
  • Expansion pass 1 Bonus - Hearts of Iron IV: Supporter Pack
  • Expansion Pass 1 Bonus - Hearts of Iron IV: Ride of the Valkyries Music
  • Hearts of Iron IV: Bonus Songs Pack
Dev Corner | Thermodynamics

If you missed the previous Dev Corner, make sure to check it out here. Briefing: Thermodynamics Author: Zwirbaum Hello everyone! It has been eight days since the last dev corner, which means it is time for another one. Last time, I was talking about some of the new naval concepts and changes coming to the Hearts of Iron IV. Today I will be talking about the introduction of Coal and Energy into the game. As a casual reminder keep in mind that everything discussed here is in a relatively early stage, and as such is subject to change.I also want to add that not every dev corner will be a long one, and some may end up on a rather short side. But without further ado, lets keep this lump of coal rolling. For the first time since the launch of the game we will be adding a new resource to the game, as every other resource, Steel, Rubber, Tungsten, Chromium, Aluminium and Oil were since day 1 in-game (with Oil getting Facelift in Man the Guns to be used for Fuel production instead of equipment production). This resource is Coal - to put it very briefly it will be serving as a fuel in the form of Energy for your industry to keep it running efficiently.

Core Concept


What are some of the goals when it comes to adding Coal & Energy, and what do we want to achieve with it?
  • We want to introduce a potential soft-limit on the current almost limitless industrial expansion.
  • Increase importance on expanding and securing a resource base for your needs.
  • Provide a bit more interesting choices when it comes to economic laws, give some incentive for a player to consider demobilize at some point during the gameplay, and that War Economy / Total Mobilization is not always the one and the only one right choice.
  • We are not aiming at creating a super complicated or overly complex system for energy/economy model
What is all the fuse about?
Sardinia starts with 2 units of Coal at the beginning of the game. As usual, numbers are subject to change, so please do not despair yet.

Base Concept


So the system works like this: Coal is excavated just like every other resource in-game. Each unit of Coal that you have for your own use (so not traded away) will produce a set amount of Energy, which then in turn is used to power up your industry - your civilian, military factories and naval dockyards, which for the ease Ill be later calling them in this dev corner as factory. Each Factory, regardless of the type, has the same base Energy demand, so what you are seeing in the top bar as your industry size should also give you a very rough estimate of the demand.
This totally mysterious country, that is totally unrelated to Sardinia from the previous screenshot starts with 56 factories, and now has a mysterious bar under the factory count.

Economy of the Scale


However the base Energy demand is not everything, as each Factory you own will also introduce a little extra scaling cost to the demand per factory, so a small, undeveloped minor country will be able to sustain their few factories with a rather small amount of coal, while historically accurate Luxembourg spanning across Eurasia will require much more energy in order to effectively satisfy the ever hungry maw of their Industry.

Lower Mobilization Law is your Friend?


Most, if not all, economic laws will also have factory energy consumption modifiers, which will essentially either increase or decrease how much each factory (including the scaled portion from size of the industry) will demand energy. Higher mobilization laws will have higher energy demand, to represent longer working hours, more shifts etc.
Economy Law picker will also now proudly display the energy consumption modifier at the first glance, so that you do not need to scour through the tooltip to find the modifier. Before you start going crazy with guessing what is the second number, it is just the expected amount of consumer goods - the icon is currently placeholderish, as we havent adjusted the previous icon yet.

How does it work though?


I will start with a quick reminder how the Civilian, Naval and Military Industry operate in-game currently. Essentially each of the factories have a specific base amount of output valued in points that they contribute daily to. (5, 2.5 and 4.5 respectively). And that was further modified by all the technologies, laws, ideas, ministers, national spirits with various Construction Speed or Dockyard/Factory outputs modifiers. I am not mentioning Production Efficiency, as that was unique to the Military Factories. So how will that operate in the brave new world? We will now have a base output for each of the industry types - which means that regardless of the energy, you will always have at least this much output from your factories. And there will be fully powered output values for the industry. Depending on the energy ratio you are providing, you will end up somewhere on that scale, e.g. If you have 50% energy - you will be getting output that is 50% way from the base output to the fully powered up. All the previously mentioned Construction Speed, Dockyard/Factory Output modifiers will also be scaled accordingly to the % of the energy you have.
This is the current debug display that allows us to see energy demand & consumption, and how much it impacts the industry. In this case we have 26.7% energy needs satisfied, and it means that each of our CICs provide 4.2 IC daily, MIC provides 3.7 IC daily and NIC provides 2.1 IC daily. Of course as usual, reminder that all values are subject to change.

Wrapping up


And that is all from this dev corner. While this post is one the shorter side, impact from adding this system could of course be quite big - however thanks to covering only this one matter, feedback, opinions, suggestions from you dear readers, should be laser-focused and allow us to get a much clearer picture of what you are thinking. Anyways, that is all from me for this week, and next week Thomas will be back with more things to say about the Factions. Thanks for reading, and until next time, farewell! /Zwirbaum If you haven't already seen it, the Steam Summer Sale has now begun!
Either Click the above image or here to check out the store page


[ 2025-06-26 12:04:08 CET ] [ Original post ]

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.

From the heart of the battlefield to the command center, you will guide your nation to glory and wage war, negotiate or invade. You hold the power to tip the very balance of WWII.

It is time to show your ability as the greatest military leader in the world. Will you relive or change history? Will you change the fate of the world by achieving victory at all costs?

Main Features:
  • Total strategic war: War is not only won on land, sea and in the air. It’s also achieved in the hearts and minds of men and women.
  • Authentic real-time war simulation: Let the greatest commanders of WW2 fight your war with the tools of the time; tanks, planes, ships, guns and newly discovered weapons of mass destruction.
  • Assume control of any nation: Choose from the greatest powers striving for victory, or the small nations trying to weather the storm.
  • Turn the world into your battlefield: Experience the full WWII timespan in a topographical map complete with seasons, weather and terrain. Snow, mud, storms can be both your strong ally and a ruthless enemy.
  • Negotiate or force your will: Experience the advanced politics and diplomacy systems, form factions, engage in trade for resources and appoint ministers to your party.
  • Intense Online Combat: Battle in both competitive and cooperative multiplayer for up to 32 players. Featuring cross-platform multiplayer.
  • Give your nation a unique edge: Experience the flexible technology system, where all major powers get their own unique identity. Develop detailed historic tanks and planes through research and army experience.

Everyone will receive:
  • Poland: United and Ready:
    A Free DLC adds a unique focus tree for Poland, new 3d models for tanks and planes, 2d assets, and extra leader portraits for the ultimate in historical accuracy.
  • Forum Avatar
  • Wallpaper

MINIMAL SETUP
  • OS: OS: Ubuntu 20.04
  • Processor: Intel Core 2 Quad Q9400 @ 2.66 GHz / AMD Athlon II X4 650 @ 3.20 GHzMemory: 4 GB RAM
  • Memory: 4 GB RAM
  • Graphics: ATI Radeon HD 5850 or NVIDIA GeForce GTX470 with 1GB VRAM / Latest available proprietary drivers from both manufacturers
  • Storage: 2 GB available spaceAdditional Notes: Controller support: 3-button mouse. keyboard. and speakers are required. / Internet Connection or LAN for multiplayer. Up to 32 other players in multiplayer mode.
RECOMMENDED SETUP
  • OS: OS: Ubuntu 20.04
  • Processor: Intel Core i5 750 @ 2.66 GHz / AMD Phenom II X4 955 @ 3.20 GHzMemory: 4 GB RAM
  • Memory: 4 GB RAM
  • Graphics: ATI Radeon HD 6950 or NVIDIA GeForce GTX570 with 2GB VRAM / Latest available proprietary drivers from both manufacturers
  • Storage: 2 GB available spaceAdditional Notes: Controller support: 3-button mouse. keyboard. and speakers are required. / Internet Connection or LAN for multiplayer. Up to 32 other players in multiplayer mode.

GAMEBILLET

[ 6441 ]

24.59$ (18%)
16.79$ (16%)
35.14$ (12%)
6.00$ (60%)
8.38$ (16%)
13.46$ (78%)
17.59$ (12%)
5.36$ (82%)
25.19$ (16%)
6.55$ (78%)
4.00$ (80%)
3.00$ (80%)
4.19$ (16%)
3.75$ (85%)
4.46$ (78%)
4.27$ (91%)
8.19$ (18%)
5.03$ (16%)
12.82$ (74%)
25.47$ (15%)
6.25$ (69%)
6.61$ (17%)
5.36$ (73%)
4.00$ (80%)
8.39$ (16%)
8.39$ (16%)
10.76$ (17%)
20.99$ (16%)
2.28$ (85%)
16.57$ (17%)
GAMERSGATE

[ 2684 ]

1.13$ (96%)
4.0$ (60%)
5.4$ (82%)
4.88$ (62%)
1.88$ (81%)
0.72$ (88%)
2.0$ (90%)
1.8$ (55%)
2.25$ (85%)
0.56$ (81%)
5.63$ (62%)
1.0$ (80%)
0.94$ (81%)
1.5$ (70%)
0.56$ (81%)
0.56$ (81%)
4.05$ (73%)
0.56$ (81%)
0.56$ (81%)
1.5$ (90%)
0.56$ (81%)
1.31$ (81%)
1.66$ (76%)
7.0$ (65%)
2.55$ (83%)
2.61$ (83%)
0.56$ (81%)
0.94$ (81%)
4.49$ (55%)
0.79$ (89%)
MacGamestore

[ 2298 ]

3.99$ (73%)
14.49$ (76%)
6.49$ (84%)
2.99$ (85%)
1.99$ (85%)
1.09$ (93%)
2.49$ (50%)
18.99$ (24%)
2.49$ (88%)
1.99$ (60%)
1.19$ (76%)
17.99$ (40%)
3.49$ (65%)
1.89$ (81%)
1.99$ (80%)
1.19$ (76%)
1.71$ (91%)
3.49$ (65%)
3.99$ (80%)
2.99$ (70%)
1.19$ (76%)
1.99$ (85%)
1.49$ (85%)
2.49$ (75%)
2.98$ (85%)
1.19$ (76%)
1.49$ (75%)
58.39$ (27%)
4.99$ (75%)
1.49$ (94%)

FANATICAL BUNDLES

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