HOI4 Modding

Bleeding edge - The most recent code updates, bugs are likely and features/quality of life may be missing.

About this site

This site provides tools to aid people in the creation of mods for Hearts of Iron IV. The list of tools and features is ever-expanding, from a forum to ask questions to online tools which allow the creation of entire mods.

From creating your own focus tree to bringing a new country into the game. HOI4 Modding allows you to create the alternative history you want to the game.

Site updates

Find out the latest changes to the site

[12/Oct/2022] Stella Polaris map changes. Read more if your mod contains a country

The latest HOI4 update has added new states. As such the map the tool uses has been updated.

However, your browser ...

[29/Sep/2022] By Blood Alone DLC Giveaway Winners

Huge congratulations to the winners of the recent giveaway:




[26/August/2022] By Blood Alone Information & Giveaway

I must start off by apologising for the lack of updates over the past few months. Life has been hectic ...

How does it work?

After creating an account you can create a new mod on this site, and invite other people to the mod if you want. Once you have created the mod, you can access any of the tools on the site to create focus trees, countries, national spirits, and more. When everything is complete, you can export the mod, extract the zip file to the mod folder created by the Hearts of Iron IV launcher, and enjoy your mod.


Thank you to those who have supported the site on Patreon over the years. However, with the lack of support being given on the site, the Patreon is now closed.