Update history
Latest Hearts of Iron IV updates
Search patches, hotfixes, and dev posts. Load more to keep browsing the timeline.
Browse updates
Published changes
Search updates. Filter by source or date. Open any row for the full patch notes, or load more to continue the timeline.
- Hearts of Iron IV
Avalanche 1.12.5 - By Blood Alone - Checksum 18aa
Hello there Generals! Another update has arrived, and this is a big one! Today we release 1.12.5, that targets some of your most pressing concerns. But there is more! As we have a plan in the works to release monthly up…
- Hearts of Iron IV
Avalanche 1.12.4 - By Blood Alone - Checksum f96e
Hello there Generals! Another update has arrived! Today we release 1.12.4. But we are working on a larger patch that will target some of your concerns about By Blood Alone, and itl have a slightly extended open beta tha…
- Hearts of Iron IV
Developer Diary | Post-Release
Greetings all, Today we’ll be casting an analytical eye over the release of BBA, what players have been up to, and what the immediate plans are going forward. It wouldn’t be a traditional post-release diary without look…
- Hearts of Iron IV
Avalanche 1.12.3 - By Blood Alone - Checksum 6b16
Hello there Generals! Another update has arrived! Bringing many requested balance changes as well as bug fixes! This patch will go live on steam right now! And itl go live on Microsoft Store next week, so if you update,…
Small Update / Patch Notes - Hearts of Iron IV
Avalanche 1.12.2 - By Blood Alone - Checksum e45c
Hello there Generals! We are excited to be able to share with you the patch notes for today's patch! This patch was planned for day 7, but we were able to get it to you on steam a bit early, and just in time for the wee…
Small Update / Patch Notes - Hearts of Iron IV
Open Beta & Game Assistance | Hearts of Iron IV: By Blood Alone
Hello there generals! You might have already seen two forum posts made by our Game Director and Tech Lead, about how to assist you with common issues. I have made this post to cover all of that in one single place, and…
- Hearts of Iron IV
Release! | Hearts of Iron IV: By Blood Alone
Now Live! Patch Notes Here! The future of war hangs in the balance. Take to the skies and pen the annals of history in the latest expansion for Hearts of Iron IV - By Blood Alone Buy it here! If you missed any of our De…
- Hearts of Iron IV
Avalanche 1.12.1 - By Blood Alone - Checksum 45c2
Greetings all, As is tradition, we’re releasing the upcoming patch notes for the Avalanche update along with By Blood Alone ahead of the time with release later today. Undoubtedly there may be some missing items here, a…
- Hearts of Iron IV
Developer Diary | Art & Achievements
Hello, and welcome to this week's Dev Diary! I am HOI’s 2D artist and am the one who makes the little buttons, icons, and whatever gets thrown in my way for you to look at and push on, and today I have gotten the opport…
- Hearts of Iron IV
Developer Diary | Tech
Bonjour friends, it’s your favourite Tech Lead again! Last year already I wrote to you in the final weeks leading to the release of the Barbarossa patch, and we draw close to the go-live of the Avalanche patch, here I a…
- Hearts of Iron IV
Hearts of Iron IV: By Blood Alone | Feature Highlights | #3
Today we go to the drawing board and the planning table as we take a look at the Divisional Command changes as well as the Plane designer with Peter Nicholson and Gabriel Blum. Click Here to watch the Features Highlight…
- Hearts of Iron IV
Developer Diary | Modding
Greetings all, Today we have quite a number of items for the dev diary. We’ll be covering some new additions to the career profile system, followed by some new tools coming for modders in the Avalanche update. To begin…
- Hearts of Iron IV
Hearts of Iron IV: By Blood Alone | Feature Highlights | #2
Today we take a dive into the various alternative futures that can unfold in the coming expansion! Explore the focus trees for Italy, Switzerland and Ethiopia with Game Director Peter Nicolson & our Hearts of Iron IV de…
- Hearts of Iron IV
Developer Diary | Quality of Life Improvements
Greetings all, Due to a misplaced carrier pigeon, today’s dev diary will not be on modding changes, but will instead focus on a variety of minor and QoL changes coming in the Avalanche patch accompanying By Blood Alone.…
- Hearts of Iron IV
Pre-Order! | Hearts of Iron 4: By Blood Alone
Coming September 27th 2022! The future of war hangs in the balance. Take to the skies and pen the annals of history in the latest expansion for Hearts of Iron IV - By Blood Alone Pre-Order Here! Pre-Order Bonus Song
- Hearts of Iron IV
Barbarossa 1.11.13 - Nakama Crossplay - Checksum d173
Hello everyone! We just released patch 1.11.13 for "Barbarossa" on Steam and Microsoft Store. The new checksum is d173. This update introduces the possibility to play multiplayer games across stores (such as Steam and M…
