Mod «Once A Holy Empire» for Hearts of Iron 4 (v1.10.1 - 1.10.4)


What if the Holy Roman Empire still existed? In this mod, the Kaiser has lost his grip on power, but has a small stronghold of land in the Czech mountains, he craves for the power he once had. In the era that was WW1, the world around the HRE was in great instability, causing internal struggles, that led to the eventual collapse of the government. Now, the former lands of the HRE are ruled by warlords, all fighting for their land, while the once great Kaiser plots from Prague. Will you be a warlord, striving to have the lands of the former lands of the HRE under your boot? Will you be the Kaiser, who wants to rule the lands of his birthright, and reclaim the throne? Or will you be an outside power, striking at the Germanic beast while it is weak?

Mod checked on game version: 1.10.1 , 1.10.2 , 1.10.3 , 1.10.4

Most Notable Changes

  • Content for the United States
  • Added German radio station 'Deutschlandsender'

Map Changes

  • Gave Italian controlled Zara to Yugoslavia
  • Hawaii is now a puppet of the UK

New Content for the United States

  • Democratic/Republican paths.
  • Confederate States of America (Fascist manifest destiny)
  • North American Collective (Communist manifest destiny)

Changes & fixes to the Holy Roman Empire

  • Fixed the "Advancements in Artillery" focus costing 140 days. (Set to 35)
  • Set integration/liberation of the republics decision costs to nothing.
  • Added "integrate the armies" focus to fix manpower issues.
  • Added decision to liberate Brandenburg-Pomerania as an RWR. (It was missing before)
  • (Communist path events) Replaced instant war declarations with wargoals.
  • Updated "Royal Ceremony" focus.
  • Replaced instant wars with wargoals for Communist Bohemia.

Fixes to the Rhineland Confederation

  • Fixed "Status of the Rhine" event firing automatically. (Should of only fired when completing the Last Hope focus)
  • Moved the Industry focuses from the far right of the tree to below the Belgian Issue focuses.

Fixes to the Prussian State

  • Nerfed Gymnastics & Sports Division idea.

Other Fixes

  • Fixed/balanced US order of battle file.
  • Unpuppeted the Philippines.
  • Fixed Hungary having no starting divisions or templates.
  • Fixed Austria having no starting divisions or templates.
  • Fixed all supply areas and strategic regions.
  • Fixed all contradicting provinces in states.
  • Fixed incorrect/nonexistent flags.
  • Fixed incorrect state name "West Dnipropetrovsk" to "East Dnipropetrovsk".
  • Added localization for the various Aristocratic sub-ideologies.
  • Resized the Aristocracy icon to fit correctly in the UI.
  • Removed Polish cores in Ukraine/Belarus.
  • Fixed Rotterdam not having a naval base.

Version 06.02.21 for Hearts of Iron 4 (v1.10.1 - 1.10.4)

Fixes to the Rhineland Confederation

  • Fixed the lack of localization for a few focuses & party names.
  • Fixed the Rhineland Election event.

Fixes to the Holy Roman Empire

  • Fixed the influence focuses for Monarchist Bohemia.

New Content for the Alaskan Governorate

  • Added Alexander Kolchak as the leader of the Alaskan Governorate.


Version 06.12.20 for Hearts of Iron 4 (v1.10.1 - 1.10.3)

  • Update to game version 1.10.3.


Version 10.11.20 for Hearts of Iron 4 (v1.10.1)

  • Early Update by order of the subs


Version 31.10.20 for Hearts of Iron 4 (v1.10.1)


How to install mod?

To install the mod for the game Hearts of Iron 4, unpack the contents of the archive to the folder Documents\Paradox Interactive\Hearts of Iron IV\mod and enable the modification in the launcher.

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