HOI IV Dev Diary | Romania: A Flawed DemocracyGenerals! Greetings, I’m Norrman and I’ve been working with Marijn and Alex on the upcoming Romania Focus Pack and I will cover the first part of this Dev Diary. Some quick notes…
Dev Corner & Open Beta: Energy #2Hello 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…
HOI IV Dev Corner | Strikes!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…
Steam Autumn Sale 2026Generals! 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!…
HOI IV Dev Corner | EnergyGenerals! 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,…
HOI IV Dev Corner - Old Canada Questions Before New CanadaGenerals! 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…
"We clearly handled that responsibility poorly": Paradox ban Discord profile pics of historical figures born after 1800, after bust-up with Hearts of Iron 4 players over Atatürk banning Paradox Interactive has banned the use of Discord profile pictures of historical figures born after 1800 in response to controversy over a ban related to Mustafa Kemal Atatürk.
HOI IV Dev Corner | The Great DepressionHey, 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…
HOI IV | Patch 1.19.3Generals! 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…
HOI IV Dev Corner | One if by Land, Two if by Sea, Three if by…Air?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…
HOI IV Dev Corner | Industrial Might & Military ProductionGenerals! 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…
The next Hearts of Iron 4 expansion is delayed, as Paradox tries to reduce "mental overhead" Paradox is delaying the next expansion for Hearts of Iron 4 while preparing to release a Romania DLC soon.
Studio Gold Update | September 2026Hello 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,…
HOI IV Dev Corner | Inlay Windows & CongressHello 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…
HOI IV | Open Beta SE™ Update 3.03Generals! 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.…
HOI IV Dev Corner | Romania, an Industry DividedHello 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…
HOI IV Dev Corner | Romanian CrossroadsGreetings, 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!…
HOI IV | Open Beta SE™ Update 2Generals! 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…
HOI IV Dev Corner | Army Quality and ExpertiseHi 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…
HOI IV Dev Corner | National Focus FlavorHello 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…
HOI IV Dev Corner - Military ProductionHello, 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…
HOI IV Dev Corner | Civilian Economy & Consumer GoodsHello, I am Zwirbaum, Game Designer for Hearts of Iron, and uncharacteristically for me, instead of writing an entire wall of text, I am just going to ask a couple of questions…
