Mod «Expert AI» for Hearts of Iron 4 (v1.10.1 - 1.10.3)


Do you want to play vanilla HOI IV but can't find the challenge you need because the AI plays the game at a beginner level? This mod is for you. Nearly everything about the AI that is possible to mod has been overhauled (with over fifty thousand lines of script added) to create a more efficient AI.

That includes division designs, division production, equipment production, variants, research, diplomacy, construction, naval invasions, ideas and more. In other words how well the AI manages its country overall. There is absolutely massive room for improvement in these areas in the vanilla game. What is NOT fixed is how the AI moves its divisions, fleets and such except for tweaks here and there. This area is largely unmoddable.

Other than just making the AI more efficient, this mod also adds completely new AI features such as:

  • A scripted AI army focus system that allows any AI to choose from a wide range of different strategies and to logically prioritise research and variant design accordingly instead doing the same thing every game. There are over 400 template variations for the AI to design towards when creating divisions which gives it adaptability and adds replayability to the game.
  • New military coordination decisions and diplomatic actions for the player that allows you to influence what your allies do: launch coordinated naval invasions, change production priorities, check their stockpiles, coordinate lend-lease.

There is also a flexible in-game configuration tool (CTRL-SHIFT-O) that allows you to customise the difficulty and the AI in various ways at any point in the game:

  • Change certain AI behaviour or game balance.
  • Customise any country's build strategy (army, air, navy) from the specifics of template composition and width to land doctrine paths and fleet composition.
  • Add various different types of difficulty settings from simple bonus modifiers to scaling modifiers and even free division and equipment spawning until you find the challenge you need.

Mod checked on game version: 1.10.1 , 1.10.2 , 1.10.3

  • Many different improvements and fixes.

Version 10.12.20 for Hearts of Iron 4 (v1.10.1 - 1.10.3)

  • Update to game version 1.10.3.


Version 18.11.20 for Hearts of Iron 4 (v1.10.1 - 1.10.2)

  • Many different improvements and fixes.


Version 07.11.20 for Hearts of Iron 4 (v1.10.1)

  • Many different improvements and fixes.


Version 21.10.20 for Hearts of Iron 4 (v1.10.1)

  • The mod has been updated for version 1.10 of the game.


Version 06.06.20 for Hearts of Iron 4 (v1.9.3)

  • Many different improvements and fixes.


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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hey, I would really love to play this mod but my hoi4 is in v1.7.1 version. Where could I find this version of the mod?

Thx for your answers