This simulation uses a layered Perlin Noise to procedurally generate a terrain, then using tools including ravine generation and hydraulic erosion you can mold the terrain to your liking. There are infinite possible terrains, some with very unexpected results. This is not a game, this is a technical demonstration. All assets and code used in this project were created by me. Credit to Sebastian Lague for the idea.

Download Instructions - 

Download the .zip and then unzip to your preferred destination. Open the folder and launch the exe file.