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- Hearts of Iron IV
Developer Diary | Peace Conference Roundup
Hello all! I join you to once again talk about peace conferences. This time we have more info on our changes and features that I was not able to go into last time. Most of these are coming as part of By Blood Alone. Pre…
- Hearts of Iron IV
Developer Diary | Division Commanders & Unit Medals
Greetings all! Welcome back to today’s feature dev diary on a series of interconnected subsystems being added to the game in By Blood Alone. One of the major points in my first roadmap dev diary was that I felt quite st…
- Hearts of Iron IV
Get your PDXCON 2022 tickets now!
PDXCON returns to Stockholm this September! Meet the devs, join a massive board game session, attend Paradox games’ orchestra & play our games! Get the tickets while supplies last!
- Hearts of Iron IV
Developer Diary | Plane Designer
Hello, and welcome back to another Dev Diary for the upcoming By Blood Alone DLC and accompanying Patch 1.12! The team has returned from the summer vacation, and we are now back fixing bugs and tweaking the balancing of…
- Hearts of Iron IV
The Grand Campaign starts tomorrow!
PDXCON2022 returns to Stockholm this September! Join us on the road to PDXCON2022 with another Grand Campaign! Watch our developers as they play through a customized game of Crusader Kings, Europa Universalis, Hearts of…
- Hearts of Iron IV
Developer Diary | Ethiopia #2
Hey, AveeBee here. This is my first time writing a development diary for you all, having only joined the Hearts of Iron team earlier this year. However, I’d just like to say that it’s a great honor to get to do this hav…
- Hearts of Iron IV
Hearts of Iron IV: By Blood Alone | Feature Highlights | #1
Join Game Director Peter Nicholson, UX Designer Peter Johannesson and Game Developers Robert Dotson & Bradley Faithfull-Wright as they detail the coming developments with the avalanche update that accompanies the By Blo…
- Hearts of Iron IV
Developer Diary | Switzerland #2
The year is 1944, the future (If you live in 1936), you may find yourself in the middle of a war against France, as the Alpine Confederation, with a beautiful flag, the sound of gunfire off in the distance You may find…
- Hearts of Iron IV
Developer Diary | Italy #2
Buongiorno! And welcome to not only my first post here on the forums, but also to Italy’s Alternative History Dev Diary! I know that a lot of you folks out there have been looking forward to Italy’s re-work, and I bet t…
- Hearts of Iron IV
Developer Diary | Ethiopia #1
MAJOR DISCLAIMER - This dev diary is written before the majority of art has been delivered, so it features a lot of placeholder graphics - you have to imagine really cool focus icons, and a lot of characters with hats t…
- Hearts of Iron IV
Developer Diary | Switzerland #1
Hey everyone! You probably don’t know me, but I’m Carlo, the Content Designer in charge of Switzerland for BBA. I’m very excited to present to you all, the Swiss Focus Tree, our first circular focus tree, allowing Switz…
- Hearts of Iron IV
Developer Diary | Italy #1
Formazione Generali! The wait is over. In this gigante developer diary we explore the majority of the Italy focus tree! Of course, we’ll save some secrets for later down the line. Due to Steam post limitations and the l…
- Hearts of Iron IV
Patch 1.11.12 "Barbarossa"
Patch 1.11.12 "Barbarossa" Checksum: 22d5 Balance: - Improved tank conversion costs for tank modules - Limited Stabilizer tank module to one per vehicle - Armor stat ARMOR_VS_AVERAGE changed from 0.3 to 0.4 to patch pie…
- Hearts of Iron IV
Announcement | Hearts of Iron 4: By Blood Alone
Greetings Generals The long tradition of HoI anniversary surprises, while slightly delayed, has not been forgotten. Today, we have the pleasure of announcing to you the next milestone in the Hearts of Iron story: By Blo…
- Hearts of Iron IV
Designer Corner | Naval Rebalance
Hello there, C0RAX here. Welcome aboard to my dev corner, in this thread I'll be going over the core introduction of the planned changes to naval gameplay. Why? The Live System: Good ship design is unintuitive. Combat…
- Hearts of Iron IV
Air Changes | Developer Corner
Hey Everyone! I am back this week to talk to you a bit about some changes we are making to air management and combat. The first thing I want to get out of the way is that this is not a “Man the Guns” style rework of com…

