But what happens when you exhaust the official trees? What if you want to lead Luxembourg to world domination, or create a custom Cold War scenario?
: Primarily designed to help modders visualize focus placement and connectors (prerequisites and mutual exclusives) to prevent overlapping. Development
Every integer on the y-axis is a horizontal row, and each integer on the x-axis is a vertical column. Focuses are positioned using these grid coordinates within the National Focus window.
Includes a grid-based builder, a procedural generation tool for quick prototyping, and a "Reusable Focus Library" to save templates. hoi4 focus tree maker
Crucial for historical immersion, ai_will_do modifiers tell the game's AI which paths to prioritize based on the current world situation. Workflow: From Concept to In-Game
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Very user-friendly, large tutorial base on YouTube. Cons: Requires Python to be installed; occasional bugs with very large trees (300+ focuses). But what happens when you exhaust the official trees
Start small. Build a 5-focus tree for a minor nation. Test it, break it, fix it. Then gradually expand. Before you know it, you’ll have a full alternate history mod with thousands of downloads.
In the grand strategy pantheon, few games offer the narrative depth and mechanical complexity of Paradox Interactive’s Hearts of Iron IV (HOI4). At the heart of this experience lies the —a branching, national-specific set of missions and bonuses that dictates a country’s political trajectory, industrial growth, and military preparation. For years, creating custom content meant learning complex scripting languages and navigating obscure file directories. That era has ended.
Pick a tool, load your favorite country, and give them the focus tree they deserve. Development Every integer on the y-axis is a
Make the AI behave logically. In your focus tree maker’s “AI” tab, set:
You can script focuses that check the game state. Example:
: Tools draw "prerequisite" lines between focuses and manage "mutually exclusive" connections to prevent players from taking conflicting paths.
Navigate to the tool and click "New Project." Name it Swiss_Neutrality_Expansion . Select the base game version (e.g., 1.14 or 1.15). The tool automatically creates the folder structure: common/national_focus/ and localisation/english/ .