Hearts of Iron IV

Generals! Welcome, I’m Norrman. I’ve been working alongside Marijn and Alex on the upcoming Romania Focus Pack, and I’ll be handling the opening section of this Dev Diary. First, a little about me. I’ve been playing Hearts of Iron IV since roughly a month after launch, and I’ve now been modding it for a little...

Welcome back! Following the tremendous feedback we received last week, we’ve implemented several key adjustments. While we are still debating the final release, we have decided to launch this as an open beta so you can test it firsthand. Here are the primary changes introduced since our last developer diary: Power Plants now occupy dedicated...

Greetings, everyone! We truly value the insightful feedback you’ve shared recently, particularly regarding civil wars and historical Canadian content. Building on that momentum, we’d love to pick your brains once again—this time on the topic of labor strikes and organized workforce walkouts. We are especially keen to hear your thoughts contrasting generic strikes (which typically...

Greetings, Commanders! It is time for another installment of our Developer Corner. Dive into the latest details below and make sure to share your valuable feedback with us. Hello everyone! As the content designer currently steering the development of Canada—undoubtedly the crown jewel of the upcoming expansion—I wanted to drop in and gather your thoughts...

Attentions, Commanders! Here is an unexpected development—initially unscheduled for any upcoming expansion, yet poised to become a vital component of future wartime logistics. When we introduced coal alongside the free update for No Compromise, No Surrender, it didn’t quite land where we envisioned. Ultimately, we had to nerf its mechanics to the point where its...

Attention, Commanders! HQ has just relayed urgent dispatches: Hearts of Iron IV and its complete arsenal of expansions are officially joining the Steam Autumn Sale! Capitalize on this prime opportunity to reinforce your ranks and expand your strategic horizons for the campaigns ahead. Source

Hello everyone! Your friendly neighborhood ImaginedPanda here, content designer for Heart of Iron, bringing you the latest installment of the Dev Corner. In today’s diary, we are diving deep into economic turmoil—or more specifically, how I stopped worrying and learned to love the Great Depression. As you may have gathered from previous updates, we are...

Commanders, As the summer fades and cooler weather sets in, we are excited to present our final “Summer” update. This patch serves as the concluding installment specifically tailored for Thunder at our Gates, delivering a fresh batch of content for the nations introduced alongside it. Additionally, this update incorporates a comprehensive series of balance adjustments...

Hello everyone, and welcome back to our ongoing series of 2026 Dev Corners. Your insights into our early-stage concepts—such as my previous discussions on army quality and airborne troops—have been immensely valuable. Today, I am eager to tap into your expertise once again. As my past developer diaries probably reveal, I have a deep fascination...

Greetings, Commanders! Welcome to another edition of the Hearts of Iron Dev Corner, where we dive deeper into military production. I am Zwirbaum, a Game Designer for Hearts of Iron. This update serves as a direct follow-up to our previous Military Production Dev Corner, following the incredible amount of constructive feedback you shared with us....