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Hearts of Iron IV
Hearts of Iron IV
SimulationStrategy
Paradox Development Studio · Paradox Interactive·$49.99
Apr 29, 2026 · 3w ago

PEace For Our Time | Patch 1.18.1

AI summary2w

A hotfix update focusing on the Czech and Slovak national focus trees, correcting several localization errors, and improving AI behavior for Germany and Slovakia.

Buffs7

  • Czechoslovakia
    • Wielding the Hammer:Added the 'Wielding the Hammer' focus to the Czech tree, providing a new national idea.Added
    • Emergency Measures:Added the 'Emergency Measures' focus to the Czech tree, providing a new national idea.Added
    • Demand the Czech Corridor:Added 'Demand the Czech Corridor' focus, allowing Czechoslovakia to demand land from Austria.Added
    • Contact the Czech and Slovak Legion:Completing 'Contact the Czech and Slovak Legion' now provides a number of air aces.0Multiple
    • Special Projects:Replaced modifiers for Czech special projects that were previously not functioning.BrokenWorking
  • PolandPoland now has a small focus branch granting access to Czech MIOs/Concerns.Czech MIOs
  • GermanyProduction:Adjusted German AI to ensure it produces an adequate number of transport planes.LowSufficient

Bug fixes2

  • CzechoslovakiaSkoda tank MIO:Fixed an issue where the Skoda tank MIO was incorrectly assigned to Armored Cars by default when creating variants.Armored CarCorrect
  • SlovakiaCosmetic Tag:Fixed an issue where puppet Slovakia's cosmetic tag would not update when changing overlord from CZE to GER.BrokenFixed

Other changes4

  • CzechoslovakiaThe Bohemia formable now uses a golden color for better visual distinction.Golden
  • PolandRealize the Polish Czechoslovak Confederation:The confederation focus now requires Poland to be at war with the same nations as Czechoslovakia.FlexibleSame War
  • Slovakia
    • Army Idea:Rebalanced the Slovakia Army Idea for better game balance.Rebalanced
    • AI Strategy:Added new AI strategy for Slovakia to actively assist Germany on the Eastern front.PassiveAggressive

subjects affected (4)

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How did this patch land?
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official notes
Hearts of Iron IV · Apr 29, 2026
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Patch history

see all 5

  1. HOI IV - Open Beta Update V
    May 13, 2026 · 1w
    +4
  2. Warships of the Pacific - Hotfix, 1.17.5.2
    Mar 26, 2026 · 1mo
  3. (Very small) Hotfix - Patch 1.17.4.1
    Feb 25, 2026 · 2mo
  4. NCNS Patch 1.17.1.1
    Nov 27, 2025 · 5mo
    +2

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PEace For Our Time | Patch 1.18.1 — Hearts of Iron IV (7 buffs, 0 nerfs) · PatchDiff