Hearts of Iron IV Peace For Our Time | Patch 1.18.1 (29th April 2026)

Generals!

Here’s your first update since we released Peace for our Time last week. Fire up HOI, annihilate your enemies, get your puppets under control and connect with your allies. Then, let us know your thoughts, and, should you find any more bugs, remember to drop them in the HOI IV Bug Reports forum.

Gameplay

• The Bohemia formable now uses a golden colour
• Poland now has a small branch that gives them access to Czech MIOs/Concerns
• Swapped several focus icons from the CZE political communist branches that used mismatching art from the Soviet 2D art pack
• Added a new focus to the Czech tree - "Wielding the Hammer" which gives a new idea
• Added a new focus to the Czech tree - "Emergency Measures" which gives a new idea
• Added a new focus to the Czech tree - "Demand the Czech Corridor" which allows Czechoslovakia to demand land from Austria
• Completing "Contact the Czech and Slovak Legion" now gives a number of aces

Bugfix

• Fixed a bug where "End the Oppression of the Hungarian workers" required the wrong state (León, Spain instead of South Transdanubia, Hungary)
• Fixed an issue where the Skoda tank MIO would by default be assigned to your Armored Car when creating a variant and producing it
• Fixed several typos in names and descriptions
• Fixed an issue where the Protektorat Bohmen-Mahren could reach 7 research slots in the 1939 bookmark
• The "I Didn't Hear No Bell" achievement can now be unlocked after changing cosmetic tag
• Fixed an issue where puppet Slovakia changing overlord from CZE to GER would not correctly update their cosmetic tag
• Fixed an issue where the "Divided Nation" spirit would not disappear if the very last decision was interrupted
• Fixed an issue where two Slovak Navy Chiefs had the same Trait, used the same generic portrait, but had varying costs
• Fixed the tooltip for the focus "Demand a Corridor to the Soviets"
• The Skoda inlay window should no longer overlap with some focuses when going down a specific political branch
• Correcting small mistake in what Czech word for "Daddy" was used for Tatíček Masaryk
• Replaced modifiers for Czech special projects that were not working
• Corrected the year in the localization of a focus from "Revert the 1926 Anti-Military Laws" to 1927
• "Realize the Polish Czechoslovak Confederation" now requires Poland to be at war with the same nations Czechoslovakia
• Rebalanced Slovakia Army Idea
• The event to demand Katowice from Poland now uses the correct option text
• Corrected the localization for a Japanese MIO to use correct special text characters
• Corrected the localization for the "Tatíček Masaryk" focus and "Ceské Slezsko" state name
• Fixed a typo in "Smaller Air Plants" focus

AI

• Adjusted German AI to produce enough transport planes
• Added new AI strategy for Slovakia so they will help Germany with the Eastern front
• Fixed some inverted ai_chance blocks when puppeting Hungary
• Add some more granular AI chance modifiers to a number of Czech events