The Terrain system is a built in tool in Unity that allows us to shape, texture and populate (with trees/rocks/grass etc) a terrain. In this tutorial I’ll walk through how to use the terrain system including features like making holes for caves and how to approach shaping a terrain.
If you’re looking to see how to procedurally generate terrain then good news, I have a series on that you can check out here: https://youtu.be/MBkJqjLrtYw
Find the code here: https://github.com/GameDevEducation/DevEssential_TerrainSystem