Hoi4 modding website

hagane.works — HOI4 modding in your browser.

Build a Hearts of Iron IV mod without writing a single script file. Fill in forms, drag focus nodes, or just tell an AI what you want — the platform writes the files, catches the crashes before the game does, and exports a ready-to-play ZIP.

What you subscribe to here is the AI skills — instruction files so your own AI agent (Claude Code, Cursor, Cline, any MCP client) can drive that editor, plus a 36-page field reference you can just read. No game files ship in this item — nothing to enable, nothing to conflict with; the building happens on the site.

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Functions

• Characters — leaders, generals, admirals, advisors, custom traits

• Focus trees — visual canvas with auto-layout

• Events & decisions — namespaces, options, categories, mission trees, super events

• Ideas & national spirits — replace vanilla ones or make your own

• Technologies — tech-tree canvas

• States — owner, cores, victory points, factories, on a real map

• …and the military side — doctrines, equipment, division templates, MIOs, intelligence, special projects, autonomy states, order of battle, bookmarks

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Features

• AI Master Agent — describe a country in one sentence ("Stalinist Romania, 1936") and it scaffolds the era, the protagonist and the stage

• AI art — generate portraits, event pictures and focus icons, auto-converted to the format the game expects

• Live in-game preview — the workbench renders entities the way the game does; click a line to jump straight to that field

• Validation before export — cross-workbench reference checks and a pre-export scan that catches the load-time crashes

• Work with what exists — import a mod and keep editing, or build on a base mod (Kaiserreich, TNO) and export only your submod

• Command Wiki — vanilla effects, triggers and modifiers, searchable, no account needed

• Multi-language — the workbench itself in 8 languages, your exported mod in 10; one-click AI translation of a whole mod, localisation files generated for you

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Now in your language

The workbench is translated into 8 languages — English, 简体中文, Русский, Deutsch, Español, Français, 日本語, 한국어. Pick yours from the language switcher and the whole workbench follows: every editor, every dialog, every validation message — not just the front page.

And the mod you export can speak 10. Localisation is written for all ten languages Hearts of Iron IV itself ships — the eight above plus Polski and Português do Brasil — each into the correct localisation folder with the matching header. One-click AI translation fills them in. You author in one language and reach a much wider audience than you wrote for.

This pack ships its manual in all eight as well: README.md, README.zh.md, README.ru.md, README.de.md, README.es.md, README.fr.md, README.ja.md, README.ko.md — open the one for your language.

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Public beta — some of it's still rough

I'll be straight with you: the onboarding is thin, so the first few minutes you might not know what to open (the in-app Docs and the manual in this pack help), and importing or exporting a big mod like Kaiserreich or TNO lags right now — it works, just not snappy yet. Both are on my list, along with an in-game UI-panel editor. It's a small project, and I'd rather say that up front than let you find it out on your own.

The files land in steamapps\workshop\content\394360\3770751085 — open the README for your language there to start.

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