MapGen v2.2 is a widely used, though aging, tool designed to help modders create custom world maps for the grand strategy game Hearts of Iron IV (HOI4)
With one click, it generated thousands of files—provinces, states, heightmaps, and rivers—that would normally take weeks to code by hand. 🛠️ "Enabling Shitty Map Designs Since 2018"
New lightweight hydraulic erosion pass adds natural-looking river valleys and sediment deposits.