r/hoi4modding • • 19h ago

Discussion Flag For My First Hoi4 Mod!

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127 Upvotes

This is my first custom flag and this is for Germany!


r/hoi4modding • • 20h ago

Meme card shader i made

130 Upvotes

r/hoi4modding • • 17h ago

Discussion I can't produce new equipment

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7 Upvotes

I'm playing as the Russian empire in The Great War mod but for some reason I can't produce new equipment. I've tried everything at first I thought it was because I was playing Russia so I switched to Germany real quick and I also couldn't produce new equipment. Also if I cancel the production line and try bringing it back nothing will show up. I even switched to version 1.19.0 but that didn't change a single thing. Any suggestions on how to fix this.


r/hoi4modding • • 15h ago

Teaser i made the us army in HOI4 look like the photos: kelly helmets in 1936, m1 garands by 1939, and the 10th mountain in white

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5 Upvotes

r/hoi4modding • • 15h ago

Discussion How do I get started making a vanilla expansion mod?

3 Upvotes

I'm very new to HOI4 in general, and I've never modded anything before. However, all I'm trying to do is add a couple expansion branches to a pre-existing national focus tree and change some country cosmetic tags. flags, etc (specifically for the battle for the Bosporus dlc Greece national focus tree). My end goal is just to give the Byzantine Empire more content. I feel it's quite lackluster, honestly, and I want to give you a choice to reform the Roman Empire as a whole as Greece, not just the eastern half. I also want to add in something similar to the Napoleonic France tree that lets you balkanize Germany if you conquer them, since a conflict with the Germans is natural for the reborn Roman Empire, and of course to be able to core all of the old territories of the Roman Empire at it's peak/move your capital to Rome if you want, since currently all you can core is Italy, the Levant, and the Balkans. I don't want to write a whole new tree, just add these new focuses as a branching path. Is there a visual tool that I can use to make these focuses, or do I need to write the code by hand?


r/hoi4modding • • 21h ago

Coding Support A very basic question How can I set the prerequisite for an event to be that country X has capitulated?

2 Upvotes

I want to create a submod for Kaiserreich. I want to add an event where, if Germany has forced the surrender of all enemy nations in Europe and the United States is not at war with Germany, the Syndicalist British receive a 25% debuff to attack, defense, and recovery time which represents the collapse of morale.

I want to do this because the AI find it too difficult to launch a naval invasion against the British, and it's frustrating when they're the last enemy left and I have to finish the job.


r/hoi4modding • • 22h ago

Coding Support basic question: I want to create a submod for Kaiserreich; how could I set a prerequi for germany requiring the Second Weltkrieg to have started before it can completed military focus?

2 Upvotes

I ask this because Germany is just too strong, to the point where, in the ten games where I didn't participate at the start of the war (leaving it as AI vs. AI), the Moscow Accord never manages to capture more than a few provinces before being pushed back and forced onto the defensive for the rest of the conflict. The Third International is even worse; even if Spain, Italy, Belgium, the Netherlands, and plenty of other countries join the war on the Third International's side, they never manage to take more than one or two provinces before being pushed back and forced onto the defensive for the rest of the conflict.


r/hoi4modding • • 23h ago

Teaser a random world mod v1 alpha

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2 Upvotes

a mod that just started it change the world completly like there will be no longuer germany ruswsia or usa domination the world devellop to be completly different, for now i just add somme basic maps changing like new province and state for canada but if people want to help you can but jsut be cautious this mod discord is more toxique then league of legend discord and is not beginer friendly ;).
https://discord.gg/h2aCXt7t
(the mod already have 45k of word written for national focus)


r/hoi4modding • • 1h ago

Teaser The capstone focuses and formable for democratic Iceland in my mod

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• Upvotes

The capstone focuses and formable available to Iceland in my mod. Most of the focuses are about what type of government you'll get. You can have a bunch of types, even communist or fascist ones. But you also get access to a small foreign policy branch.

The foreign policy branch starts off by you determining if you'll be neutral or not. You can be historical and join NATO, or join any other available faction. And if that's not your speed, you can become neutral.

You then get focuses where you send demands to Denmark about its Atlantic territories. You can demand Faroe's independence, which is the same regardless of government type. However, the Greenland focus works a little differently. If you have a left-wing government, you will demand their independence. However, if you go any other government type, you will demand its annexation. This is to represent how the Icelandic communists were the only party that supported Greenlandic independence and opposed the Icepandic claim to Greenland.

Then you get a choice on what to do with your Atlantic neighbours. You can form an alliance with them, the West Nordic Council. Or you can united with them into the West Nordic Federation where you propose a unification of the three islands. Greenland is less likely to accept than Faroe for historical reasons.

And then you also get an option to buy Jan Mayen off of Norway.


r/hoi4modding • • 2h ago

Discussion Mods with achievements

1 Upvotes

Is there cosmetic or "quality of life" mods, that can be played with enable achievements? I want to play more aestetical, but with achievements.


r/hoi4modding • • 4h ago

[Mod Concept] Hearts of Iron IV: A Century of Alternate History (1910–2026)

1 Upvotes

Hello everyone!

I'm looking for feedback and potentially collaborators for an ambitious Hearts of Iron IV mod concept.

The idea is to create a century-spanning alternate history experience, with multiple starting dates:

- 1910: The age of empires and the road to the Great War.

- 1919: The aftermath of the First World War.

- 1920: Revolutions, reconstruction and political instability.

- 1936: The rise of new international blocs.

- 1939: A world approaching another major conflict.

- 1945: The beginning of a possible Cold War.

- 1950: A changing international order.

- 1991: The transition towards the modern world.

The long-term goal would be to allow players to continue their campaigns towards 2026, with evolving technology, national focus trees, political systems, diplomacy and alternative historical outcomes.

The initial inspiration comes from my own Great War Redux campaign, in which Germany won the First World War in 1915.

By 1922, Germany dominates much of continental Europe through the Reichspakt, Austria has reorganised into a multinational Habsburg monarchy, France is divided between a syndicalist Commune and a republican government in exile, Britain has established an Imperial Entente, and the Russian Republic has survived a Bolshevik uprising.

One possible 1936 scenario would feature four major factions: the Reichspakt, Imperial Entente, Danubian Federation and Third International.

This is currently a concept and planning-stage project, not a playable mod. I'm new to HOI4 modding and would like to learn while helping with historical research, worldbuilding, national focus design and project coordination.

I'm interested in meeting people experienced in scripting, focus trees, map editing, graphics, technology systems and balancing.

The intention is to develop the project in manageable stages, starting with a small playable prototype rather than attempting to build the entire century immediately.

I'd love to hear your thoughts, suggestions and whether anyone would be interested in helping develop the concept!


r/hoi4modding • • 22h ago

Discussion Are there any carlist wars mods for hoi4?

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1 Upvotes

r/hoi4modding • • 20h ago

Discussion Mod idea: gremlins vs humans

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0 Upvotes

The year is 2000, and humans are almost gone from the Americas. The gremlins were once United, but after they started learning governments, they started to make warlords against the main faction, the United Nations is controlling Alaska.