VS Code extension for Hearts of Iron IV modding.
《钢铁雄心4》模组可视化编辑器（Python + PyQt6），一站式编辑 100 种 MOD 内容类型。
GFX TOOL is a convenient tool for Hearts of Iron IV modders that automates GFX file management. The program allows you to quickly compare the original mod and your submod, replacing files with one click while automatically maintaining the folder structure.
Visual mod generator & studio for Hearts of Iron IV (Clausewitz Engine). Create custom countries, flags (TGA), puppets across 11 tiers, decisions, formable nations, with interactive 1081-state map.
HOI4 模组制作全能工具包，可以制作、检查、修改自己的模组。
CAPIE script SDK for Hearts of Iron IV mods: detection, missing-library indicator, versioned contract (pre-release)
CAPIE - Cyprian's API Extender: native library extending Hearts of Iron IV modding capabilities (pre-release)
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