Hex Map 26: Biomes and Rivers

This tutorial wraps up the map generation algorithm by adding support for rivers and more complex biomes.

The rivers are created after the water cycle, so don't actually influence cell moisture. This makes it possible for them to flow through dry regions.

Biomes are assigned according to a matrix based on temperature and moisture bands. Some fine-tuning is done afterwards to add extra variety. Finally, underwater cells get some attention as well.

Hex Map 26, Biomes and Rivers, a Unity C# Tutorial (Catlikecoding)