Negative Y simulated via world offset; actual min Y=0.

To begin, you will need the MapGen v22 tool and a base map (often a customized image file) that defines the layout of your landmasses and oceans. 1. Preparing the Base Map

Are you designing a or a completely fictional universe ? What specific version of HOI4 are you targeted to mod?

Whittaker's climate diagrams are applied dynamically. Temperature and moisture values dictate where rainforests, savannas, deserts, and taigas appear. Practical Applications