Hearts of Iron IV

Hearts of Iron IV

1,140 ratings
File Size
3.456 MB
Jun 2, 2018 @ 11:17pm
Jul 6, 2018 @ 2:25pm
31 Change Notes ( view )

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This mod was made possible thanks to the new Scripted GUI system created by PDX developer shultays, please check his tutorials on PDX HOI4 forums if you want to add GUI features to your mod.


Recruit Spies: Build Spy Universities to recruit new spies for you on a daily basis (Recruitment capped at 5 per day)

Engage in Covert Warfare: 14 Covert Actions you can perform on other nations, viewable in the diplomacy view of the selected country. (e.g: Sabotage Aviation Radars, Disrupt Military Industry, Sow Political Discontent etc..)

Investigate Foreign Activities on your soil You have the option to try to find out who's performing such activities on your soil, for a political power cost.

Assign Spies to Local Missions: Assign some of your available spies to local missions, such as increasing war propaganda.

Level Up your Spy Director: Level Up your Director, using Spy XP, to unlock new abilities for your Spies.

Infiltrate a Target of your choice: Infiltrate a nation of your choice to get daily reports on their military and industrial data, viewable in your Agency Headquarters.

Study Enemy Technology: Assign spies to study technology of your Infiltration Target. Once enough Research Points are gained from your target, you can use them to copy Enemy Unit Models for your use.

Arm The Resistance: Arm Resistance in enemy occupied territories and select a target for them to disrupt (infrastructure, radars or airbases)

Upcoming "Operation Eiche" Update

- Major balance changes that susbtantially nerf some actions and make the mod more suitable for MP.
- Addition of Spy Network Strength as a pre-requisite for Covert Operations (works similar to HOI3)
- Addition of the ability to imprison captured spies (since they are becoming a more scarce resource)
- Addition of the ability to negotiate spies release with the country holding them captive, in return for something you offer.
- Adding events and different options/scenarios for covert operations to add more depth, balance and make them more interesting than simply clicking on a button.
- Adding the ability to try to rescue captured spies from an enemy country in an "Operation Eiche" style.


Kaiserreich: Fully compatible with a minor cosmetic inconvenice (Spy Icon appears on top of the opinion GUI, but can be hidden by simply clicking on the details tab below when needed).

Fuhrerreich: Fully compatible with no cosmetic issues.

More updates to come to make it compatible with more big mods.

This mod took me an insane amount of time to finish, please have the courtesy of not copying without permission. Much appreciated!

This mod success depends on YOU. Please provide any feedback you may have especially regarding balance, AI aggressiveness etc...


Coding & Creation: Nicolas
Translation (to be implemented): Kurl Meyer
Popular Discussions View All (9)
Jan 17 @ 1:15pm
Compatibility Requests
Sep 23, 2018 @ 1:37am
Oct 31, 2018 @ 9:17am
Report any BUGS here.
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[CFFI] DavideM499 Jan 15 @ 3:03pm 
@Rusty the Loyal No...
Rusty the Loyal Jan 15 @ 9:53am 
Is this compatible with Road to 56?
[CFFI] DavideM499 Jan 4 @ 6:12am 
RT56 submod
CobraVag Dec 31, 2018 @ 7:35pm 
Love the idea of the mod but interferes with BICE building menu. +1 for compatability!
This Is My Saftey Dec 29, 2018 @ 10:22pm 
How can I get this mod to work.
BURSA LEE NÖÖB Dec 17, 2018 @ 8:02am 
It's still my best...
Kirito031 Dec 9, 2018 @ 2:39pm 
I can't play it because it has a black box around it. is it suppose to have that or is it automatically in the game:steamsad:
PoliticalPlant Nov 21, 2018 @ 9:47am 
Also, that looks amazing
PoliticalPlant Nov 21, 2018 @ 9:46am 
@Brother, where are my R56 and MD:MD submods at?
Nicolas  [author] Nov 20, 2018 @ 10:46pm 
Summary of the upcoming update: https://imgur.com/gallery/mgGO3iH
If you have any other suggestions now is the time to voice them, before it's uploaded! Thank you :)