Hearts of Iron IV
October 2026
Steam Autumn Sale 2026
Discount
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,…
HOI IV Dev Corner | Energy
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…
September 2026
HOI IV Dev Corner - Old Canada Questions Before New Canada
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…
HOI IV Dev Corner | The Great Depression
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…
HOI IV | Patch 1.19.3
Update
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…
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 very helpful to us. I hope I can…
HOI IV Dev Corner | Industrial Might & Military Production
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…
Studio Gold Update | September 2026
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…
HOI IV Dev Corner | Inlay Windows & Congress
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,…
August 2026
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