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Steam News · Oct 7
Hello again! After a lot of reactions last week, we’ve made some changes. We are still not sure if we should release this or not, but based on the reactions we also decided to make this an open beta. Changes since last dev corner: Power plants now fulfill a state slot instead of the shared factory slots You can build up to 3 levels of power plants in a single state Research has been added, allowin...
Steam News · Oct 6
Hello there! Your feedback has been much appreciated, both with civil wars and old Canada content. So I come here once again to ask you what do you think about…. Strikes! (As in the labour history, workers striking for better rights) I’m particularly curious about what you feel about the generic strikes (low stability) vs country specific strikes (like Australia’s communist paths) What do you thin...
Steam News · Oct 1
Generals!We've received communications from our Allied Headquarters, that indicates Hearts of Iron IV and its associated DLCs will be taking part with the Steam Autumn Sale!Take advantage of this recent development, and secure additional frontlines for the war effort.
Steam News · Oct 1
Generals! Something different, not planned for any expansion, but perhaps a future war effort. We added coal to the game as part of the free update released with No Compromise, No Surrender. However, coal did not end up where we really wanted it, and we ended up nerfing its effects to the point where it didn't really matter anymore. Part of the feedback we received was that using coal to represent...
Steam News · Sep 29
Generals!Another week, another Dev Corner. Read through and give us your relevant feedback.Hello all! I'm the content designer working on Canada (obviously the most important nation in the DLC), and I'm well underway but I'd figure I'd swing by and ask you some questions about the existing Canada content: Is there anything in particular you like about it? Is there anything in particular you don't ...
Steam News · Sep 28
Hearts of Iron 4 developers Paradox Interactive have prohibited the use of Discord profile pictures of historical figures born after 1st January 1800, save for official in-game portraits, amid an uproar caused by a moderator banning somebody for using a photograph of Republic of Turkey founder Mustafa Kemal Atatürk. Discord server members are still free to "use any official Hearts of Iron IV in-ga...
Steam News · Sep 22
Hey, folks! This is your friendly neighborhood ImaginedPanda, content designer on Heart of Iron, coming to you with today's Dev Corner. For our current iteration we will be talking about economic woes or how I stopped worrying and started to love The Great Depression. As you might have gathered from other Dev Corners we are looking at how we do Industrial or Economic gameplay and we on the content...
Steam News · Sep 17
Generals! With the weather becoming more gloomy and the summer on its way out, we bring the last “Summer” release. This will be the last patch that specifically targets Thunder at our Gates and brings a few additional pieces of content for the countries that were introduced with it. This patch also comes with a solid number of balance changes that were introduced from the Open Beta Summer Edition™...
Steam News · Sep 15
Hi all, and welcome to the next installment of our 2026 Dev Corners. Your feedback on ideas in early development, including my prior ones on army quality and airborne troops, is very helpful to us. I hope I can benefit from your input once more. As you can likely surmise by the content of my previous DCs, I’m a big enthusiast of the history of airborne troops. Really, if you’re into WW2 in even th...
Steam News · Sep 8
Generals! Welcome to an additional Dev Corner on Military Production. Hello, I am Zwirbaum, Game Designer for Hearts of Iron, and welcome to this Dev Corner about Industry. This is a follow-up to the Military Production Dev Corner since you had a lot of feedback around it. We noticed there were a lot of concerns with regards to changing the system and because of that we want to give a bit more add...
Steam News · Sep 5
Paradox is going to "take extra time" for the next Hearts of Iron 4 expansion, but a Romania DLC is coming soon for the WW2 strategy game. Read the full story on PCGamesN: The next Hearts of Iron 4 expansion is delayed, as Paradox tries to reduce "mental overhead"
Steam News · Sep 4
Hello Generals, Admirals and Air Chief Marshals! Swedish summer is over, and we were blessed as it lasted a good 5 weeks. We’d already started work on the 1.19.3 patch before, and we’ve been at work putting the finishing touches for the last several weeks. And while dates are always subject to change our plan is to release that on September 17. Patch 1.19.3 wraps up our active post-release Thunder...
Steam News · Sep 1
Hello there! Welcome to the next Dev Corner, where we might present something we’re working on or gauging people’s thoughts on mechanics and other things. Those of you who have been keeping up with our trailers, teasers, and dev corners have probably figured out that we’re working on something new, and I’m here to make you folks spill the beans on what you think of certain new additions to the gam...
Steam News · Aug 28
Generals! Hello, I’m Zwirbaum, Game Designer for Hearts of Iron, and I want to welcome you to yet another Open Beta SE™ (Not really trademarked) Update for Hearts of Iron IV. This week I am bringing more of the experimental features and changes, which may or may not end up in the game integrated into the main branch. That’s why your feedback is important and to let me know how you feel and how it ...
Steam News · Aug 25
Hello all! In today's Dev Corner, we're diving into the economic crossroads of Romania. Like many nations in the 1930s, Romania was torn between its agrarian foundation and a push for rapid industrialization. What makes it unique, though, is the sheer scale of this divide, with over 70% of the population tied to rural agriculture,; modernizing the nation is no small feat. It will be up to you to c...
Steam News · Aug 18
Greetings, generals! We are Alex, Norrman and Marijn211, modders of the game and now cooperating with Paradox, and today we’re showing you tidbits of a future DLC for… Romania! As explained below we won’t go into too much detail yet as not everything is finalized, but this also means that we can optimally incorporate your feedback. Two weeks ago we showed the International Cooperation mechanic tha...
Steam News · Aug 12
Generals! Hello, I’m Pdxen, Tech Lead for Hearts of Iron and I want to welcome you to the second update of the Summer Open Beta. In this update we are changing the topic from balancing to updating the tech stack of the game. A lot has happened with computers since Hoi4 was released. Back then, new CPUs used to have 4 cores and around 8 hardware threads, and all of those cores were heterogeneous. A...
Steam News · Aug 11
Hi everyone, Jamor here again. I want to thank you for good, informed feedback and suggestions in the previous airborne dev corner. I hope I can benefit from the community’s collective insight once more. Up to this point, unit quality across the board in HOI has been fairly uniform: units from different countries level up at a broadly equal rate, and have similar limits on the XP they can gain fro...
Steam News · Aug 4
Hello all! Today we're kicking off a new round of Dev Corners, this time turning our attention to a project we haven't touched on yet. We'll start with some early questions around ideas we have in mind, while future Dev Corners here will get a lot more specific about the country and content drafts we'd like your opinions on. Let’s start with some general design questions, just to see what kind of ...
Steam News · Jul 28
Hello, I am Zwirbaum, Game Designer for Hearts of Iron, and it is once again the unfortunate for you my time in the dev corner spotlight. Anyways, without further ado, let’s get started with today’s topic - Military Production. And once again I will resort to acting a bit mysteriously, while asking some questions. Military Production operates on an abstracted pool of the factories, which means tha...