For Hearts of Iron IV
Build templates, plan research, compare doctrines, and discuss strategies with the community. All in one place.
Every build, recalculated live, so you know what you’re committing before you unpause.
All units, modules and slot rules. Experiment in the browser with what's actually allowed and plan a few steps ahead.
Research and doctrines are layered on top of your templates and designs and feed straight into your stats as you plan your army. Walk the tech and doctrine routes you want to play toward and see how each step shifts your numbers.
Compare any two builds side by side. Dynamic stat deltas and heatmaps make it easy to spot where one wins and what you're giving up.
Every build you save lives in your Library. Organize them your way and pick them up whenever you need them on any device.
Rate my build? Every card packs battalion layout, combat stats, and terrain modifiers into one shareable image. Build something. Export it. Drop it anywhere to get feedback.
Reddit · Discord · Anywhere
The community's best builds, already figured out. Browse, load in one click, and iterate from a solid base.