Hoi4 Focus Tree Maker
Using the grid interface (7 columns wide, usually), drag a Focus Button onto the starting cell.
Almost every major total conversion mod started with a single focus tree maker.
If you have an idea for "Communist Brazil leading a South American super-state," the barrier to entry is now a single afternoon with a focus tree maker.
The HOI4 Focus Tree Maker transforms modding from a tedious chore into a creative strategy game. It allows you to focus on the design of your alternate history rather than the syntax of the code. Whether you are making a minor tweak to the USA or creating a fully realized "Kaiserreich" style total conversion, start with the visual planner. It saves time, reduces headaches, and produces clean, functional code.
For trees with 50+ focuses or nested mutual exclusivity, the auto-layout struggles. Nodes overlap, connections become spaghetti, and manual repositioning is tedious. Hand-coding remains cleaner for very large trees. hoi4 focus tree maker
Finally, you must tell the game which country gets this tree. You need to edit the `common/country_tags/
In Hearts of Iron IV (HOI4), focus tree makers are tools designed to help modders create complex national focus trees without needing to manually script every line of code. These tools use visual interfaces—often drag-and-drop—to manage branching paths, prerequisites, and rewards. Top HOI4 Focus Tree Tools
HOI4 Modding: A popular web-based platform that allows you to build entire mods, including focus trees, countries, and national spirits. While accessible for beginners, some experienced modders warn that its code output may occasionally lead to bugs.
Operation Anvil (HOI4 Focus GUI): A modern, standalone tool featuring a grid-based builder, reusable focus libraries, and one-click export for scripts and localization. Using the grid interface (7 columns wide, usually),
HOI4 Mod Utilities (VS Code Extension): For those who prefer direct coding, this Visual Studio Code extension allows you to visualize your tree in a side-by-side terminal while you script, helping catch breaking errors. Core Features of a Focus Tree Maker
Visual Logic Canvas: You can move and connect focus nodes to map out historical or alt-history progression paths.
Property Editing: Tools allow you to set specific IDs, political power costs, and completion rewards (like stability or research bonuses).
Connector Logic: Automated systems handle the color-coded lines for prerequisites (green), mutually exclusive paths (red), and complex dependencies. If you have an idea for "Communist Brazil
Localization Support: Many makers automatically generate the necessary language files so your focus names and descriptions appear correctly in-game. Creating Your First Focus Tree
Preparation: Beginners often use draw.io to sketch out branches before moving to a dedicated maker.
Setup: Use the HOI4 launcher to create a basic mod directory.
Building: Place nodes, assign a country tag (e.g., GER for Germany), and define the layout coordinates.
Exporting: Once finished, you export the .txt files and place them in your mod's common/national_focus folder. National focus modding - Hearts of Iron 4 Wiki