r/hoi4modding • • Jun 12 '26

Important TAOG Update Guide

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6 Upvotes

Courtesy of the EAW team, we have a guide to updating your mods to the latest patch.


r/hoi4modding • • May 10 '23

Important HOI4 Modding Information + Discord Server

52 Upvotes

Tips

• If you are making your first mod, start small with content for a single country rather than with total overhauls, especially related to the map.

• Use proper indentation in your code and comments when possible, with guidelines and easier ways to do it outlined in https://hoi4.paradoxwikis.com/Modding#Indenting. This will make it easier to read, making it easier to debug for you and others.

• Check base game files for code examples to possibly adapt into the mod regularly.

• As a lead developer, you should be prepared to do the majority of the work for the mod rather than expecting others to do it.

• Use a good text editor, such as Notepad++, Sublime Text, or Visual Studio Code.

• Don't use hoi4modding.com: it has less functionality compared to manual editing and commonly produces broken code.

• Always check articles on the HoI4 Wiki at https://hoi4.paradoxwikis.com/, as they provide a lot of info and can point out some common errors on the topic.

​

Resources - https://bit.ly/3GPdwPD - Includes GFX assets, Code Samples, Tools, etc

Discord

We also have a Discord server https://discord.gg/a7rcaxbPka which has:

• Various bot commands for frequent errors,

• Dedicated help channels for coding, GFX, and research,

• Channels to advertise in-development and published mods,

• A regular Modding Jam where participants compete to create a mod based on a theme, and

• The largest English-speaking Discord community dedicated to HOI4 modding!

We would love for you to join!


r/hoi4modding • • 7h ago

Discussion Guys I might have just thought of the weirdest Hoi4 mod idea:

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17 Upvotes

Listen, this is a very weird idea. Basically GTA VI GETS CANCELED TO 2030, and as a result the 2ACW starts between Trump and Antifa. Then we get the Communist Crisis in Germany, but they move the "red terror" to denmark, and the CDU becomes Catholic and Unites Germany (also the AfD lost the elections and then this communist cricis started). Pope Leo declares a HOLY CRUSADE TO PROTECT ISRAEL, eventually winning. Xi Jinping becomes a liberal ahh democart and HongKong and Macau get Independance, also china reunites with Taiwan. Putin steps off of office and goes to chill in Mongolia. Russia then Becomes Democratic! Sweden becomes the Minecraft Republic. YOU HEARD ME RIGHT! Greece becomes a Catholic Distributist and conservative Nation, staying non interventionist and chilling to maximize the economy. As those events happen, abortion and Satanism fade away, and secular governments fall and get replaced by catholic ones. Happy end for everyone.

TL;DR: GTA VI gets delayed to 2030, triggering the 2ACW between Trump and Antifa. Germany faces a Communist Crisis, Denmark gets the Red Terror, and the Catholic CDU unites Germany after the AfD loses. Pope Leo launches a Holy Crusade to protect Israel and wins. Xi Jinping becomes a liberal democrat, Hong Kong and Macau gain independence, and China reunites with Taiwan. Putin retires to Mongolia, and Russia becomes democratic. Sweden becomes the Minecraft Republic, while Greece turns into a Catholic Distributist paradise. Meanwhile, secular governments collapse, Catholic ones rise, and abortion and Satanism fade away. HAPPY ENDING FOR EVERYONE!

(flags: 1) bonus libertarian us faction in the 2acw 2) national capitalist usa 3) catholic greece 4) syndicalist usa in 2acw 5) trump ending in 2acw 6) catholic germany 7) political compass of countries 8) egoist usa in 2acw 9) woke usa in 2acw 10) communist denmark 11) vatican city 12) liberal china 13) hong kong flag 14) Minecraft Republic Flag 15) Democratic Russia flag 16) Crusader flag.

IF YOU HAVE ANY LORE IDEAS PLEASE TELL ME, I'D LOVE IT!


r/hoi4modding • • 5h ago

Resource HOI4 Mod Flowchart (1700s-2200s)

6 Upvotes

A flowchart of every HOI4 mod (that I'm aware of) that takes place between the 1700s and the 2200s.


r/hoi4modding • • 23h ago

Teaser [Wind of Change // 1.1.1989] All-German Starting Leaders [Teaser]

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144 Upvotes

//

Today I bring to you, all the German starting leaders of most ideologies. Some of them you probably know, but a few are very very special. There wont be a path for all of them but a few will definitely get their batch of content.
Rotation will take place of some leaders (e.g. if the DDR doesnt preserve their system the socdem party will switch to the SPD)

//

A first look into the 1990 All-German Election

//

This marks the beginning of content for the finally reunified Germany. Helmut Kohl is eyeing for his fourth term and a fast reunification while his Social Democratic opponent Oskar Lafontaine opposes a fast and uncontrolled unification. The result is not yet decided but in a historical perspective, Kohl has gotten his fourth term.

The SED, the dictatorship party of the DDR, has reformed under new leadership and under the banner of a democratic socialism, with an attempt to shake off the old mantle of dictatorship and become a proper power in the new Germany.

If you got any feedback I will listen to it all!🇩🇪

-Paulus23, WoC Development Team

//

Join our discord!

Dev/Mod Applications open and looking for recruits!

Discord: https://discord.gg/pkwQ4zcmn
Subreddit: [r/windofchange](r/windofchange)


r/hoi4modding • • 2h ago

Coding Support How can I create a custom event to invite a country into my faction?

2 Upvotes

I want them to only join my faction if our relationship is good, they are not at war, and their ideology is non-aligned. How can I code that?


r/hoi4modding • • 2h ago

GFX Support how do I change border color between countries

2 Upvotes

I made provinces white by stealing it from some mod but how do I change the borders between countries???? It wasn't included


r/hoi4modding • • 5h ago

Discussion Is there/could someone make a mod to add the music from Medal Of Honor?

1 Upvotes

I grew up playing the MOH games and feel like they'd be a perfect fit. If there isn't already one, how hard would it be to make? I've never made a mod before.


r/hoi4modding • • 20h ago

Coding Support Need help with coding of superevent for my submod. Attached is video demonstration, below will be the code

13 Upvotes

Something is going wrong up to the actual portion of playing both the scoped sound as well as the actual event appearing. The event that triggers it seems to be working but it’s missing a key or a components that will make it work fully. Below I’ll have the code with the corresponding details so you guys can help me make sense of this


r/hoi4modding • • 13h ago

Discussion Do you have any suggestions for a Tunisia mod?

3 Upvotes

Despite being a major theater of WW2 where one of the decisive battles in North Africa happened, Tunisia is not represented at all in HOI4. And unfortunately, I can't find a good mod for it. Do you have any suggestions if you know good mods or ideas to try and make my own?


r/hoi4modding • • 9h ago

Discussion (not sure it's the right flair) I'm trying to figure out the character system somewhat

0 Upvotes

To have one leader "change" ideology or even just subideology through focuses or events, do you need to create a new character, or is there a way to change those things?
I'm using Dino's hoi4 mod tool but I recognize there'll be some things which I'll have to do manually (even tho idk shit about coding I'll figure something out)


r/hoi4modding • • 10h ago

Discussion Would You Play A Redux of Weltreich?

1 Upvotes

So, I'm working on a HOI4 Mod along with being the Developer on Canada for The New Cliché: Last Days Of Uniqueness, called WeltreduX, but I currently can't add anything to the mod (or fix the errors I need to fix) because I am on holiday, but I was wondering whether people would want to play it and why. You are welcome to discuss this in this thread.


r/hoi4modding • • 1d ago

Teaser Boots on Ground is fully released now!

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80 Upvotes

An Addon for NSB Tank Overhaul, focusing on Infantry and Army Organization on the Battalion Level, Boots on Ground, has just been fully released. This mod can be played together with its parent, NSB Tank Overhaul, or on its own using a small Compatibility mod.

Resize and restructure your Battalions and add new Equipment directly to them using the Battalion Designer. This handmade, custom feature adds a completely new level of granularity to Infantry, Special Forces and Mobile Units such as Cavalry or Motorized.

Recreate historical designs or branch off from history using the Infantry Weapon Designer. It strikes the perfect balance between in-depth design and ease of use, meaning you can provide weapons to your army no matter how much you know about firearms.

Mold your units to specific or general tasks using the brand-new support equipment, such as Machine Guns of various sizes, Mortars, Sniper Equipment, Anti Tank Rifles and Rockets and more.

Take direct command of your nation's supply lines using Horses or Trucks, to ensure your frontline troops are always supplied with food, ammunition and fuel.

Check it out for yourself here: https://steamcommunity.com/sharedfiles/filedetails/?id=3820684423


r/hoi4modding • • 1d ago

Teaser REAL Harry Potter spells in HOI4

113 Upvotes

this is the latest special effect test. originally, I planned to work on content related to Wolfenstein, but I found that a small test related to spells seems pretty good as well


r/hoi4modding • • 21h ago

Teaser Luxem Legacy Mod

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6 Upvotes

# Welcome to Luxem Legacy 1.0!!!

Hello all who come, to the discord server dedicated entirely to my very first hoi4 mod. I am making this mod as a practice for future projects, and even as it’s still in development I am happy to announce that there are already 2 planned major expansions for after its release.

This mod is centered around Luxembourg, with playable content stretching from the Congo to the Benelux. As of now, I have finished configuring the states and am laying the foundation for the focus trees. The plan is a new, non-aligned, monarchist Luxembourg that you can eventually return to the glory days. Stay tuned for teasers, major developmental updates, and more!

# Luxem Legacy Devlog October 15th (5 days into development)

Current Progress: Map is currently Fully Finished besides localization and naming conventions (No progress since last devlog)

Focus Tree: Politics Branch is approximately 100% Complete with over 2 dozen focuses. I also added 2 extra focuses to it, and started the industry tree with about 10 focuses already and up to 15 more planned. Localization for the entire politics tree is finished.

Events: First 3 events completed. (No progress)

Portraits: 1 Portrait is ready, 2 more are planned right now. (No progress since last Devlog)

National Spirits: I think I finished about 6-8, and all of them are now localized.

**NEW PARTNERSHIPS for those who are interested in advertising their mods.**

DISCORD SERVER HERE:

https://discord.gg/RhCGFNdy3


r/hoi4modding • • 1d ago

Teaser Collapsing World: Perfume Reaction Teaser

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21 Upvotes

r/hoi4modding • • 1d ago

GFX Support Few portraits for Red Dawn submod. Yan Gamarnik, Amangeldy Imanov, and Sher Mohammad Korsirmat.

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11 Upvotes

r/hoi4modding • • 4h ago

AI Assisted I made a mod manager and conflict finder for CK3 (and other Paradox games)

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0 Upvotes

r/hoi4modding • • 14h ago

Coding Support Why does my mod crash?

1 Upvotes

Okay so I tried giving vanilla states to vanilla countries, specifically in Africa, but the game just keeps crashing before it has even loaded. Can anyone help me with this? This has happened to me with every mod I've tried making.


r/hoi4modding • • 1d ago

Teaser I’m picking back up a Freikorps mod where the Kapp Putsch is successful; if you want to know more or get involved, join the Discord.

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30 Upvotes

btw its the first time i tried gfx in focuses, i think that It turned out well.


r/hoi4modding • • 15h ago

Discussion TNOR Italian lakes

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1 Upvotes

r/hoi4modding • • 1d ago

Coding Support What happened?

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160 Upvotes

I was making a new state, clicked update on strategic regions, my game crashed, and when i come back i see this. What do i do?


r/hoi4modding • • 1d ago

Discussion I am really excited for Pax Britannica

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73 Upvotes

I recently came across the beta version for Pax Britannica (I was informed it's already available to the public, the version I played is the beta for. Future updates) and the setting itself already sounded compelling enough, the idea of Queen Victoria becoming the Eternal Empress because Edison experimented on her for her survival, sounded like an intriguing premise.

Add on to that: a post Great War world with unique nations I hadn't seen before and creative ideas for different systems I immediately downloaded it.

I decided to play as my home country of Mexico to see what they were doing.

Mexico basically was the Ottoman of the Americas, once a powerful force that now has decayed and is slowly dying.

While right now it features limited content (only up to the reunification of lost lands of the empire) it's still a really interesting play through for all the events you get to see and the mechanic for managing loyalty of your states didn't feel too tedious but wasn't just a road bump either.

The big event you get as Mexico is the reclamation of your lost lands after you fix the Nation and sort of make it less horrible to live in.

When you pick the relevant focuses you immediately declare war on the North and South nations, whichever side you pick you get the bonus for it.

Honestly the war wasn't too difficult beyond California and Tejas.

Also another point I really like is the management of technology, given the unique setting you of course get some unique tech.

Featured in the second photo is the unique branch where you can research both chemical and biological weapons, plus stimulants for your troops.

The interesting thing is that for chemical weapons the damage is applied to whichever state you are targeting so it persists for a while which could be negative for you, the biological weapons have a unique feature as some can spread beyond the selected state quickly creating issues for you.

So they are essentially a double edge sword and have to be careful where you apply them.

In the third photo we see the tab of Augments and what I would call one of the highlights of the mod itself.

The amalgamates are essentially a hotpot of genes of animals put into a singular being that is then deployed in your front lines as divisions, they are decent ish and not too expensive (Australia has a nation where these creatures escaped and evolved and now haunt that side of Australia)

The other one I tested was the enhanced human and honestly I really liked the aesthetics of it.

The Razor maidens are essentially women who have gone extensive mechanical changes to their bodies making them an excellent special forces division and they are very fast as well plus can hit hard even punching through tank divisions with the right support.

I could keep talking on and on about various features such as the automatons, the space race between Russian and Britain, the Second Great War, the fractured America and the genuinely fascinating world build they are doing but this post has been long enough I feel and I would rather people experience that for themselves


r/hoi4modding • • 1d ago

Teaser On The Clouds Of Heaven - The Final Judgement Strange Sprite?

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161 Upvotes

Hi People. I recently watched a video on the mod On The Clouds Of Heaven - The Final Judgement and I'm really confused as to what this Satan sprite is supposed to be? If anyone knows more than me please let me know. I feel like I'm very well educated on the Catholic and Orthodox faith and I'm confused as to what the hell this is supposed to be.


r/hoi4modding • • 1d ago

Coding Support How would i create a state manually?

1 Upvotes

Hello! Today i learned how to exchange provinces between states (only nudger help i needed was the buildings), but now i want to create a new state and dont know exactly how i would do that. Anyone know?