Software : Substance Designer 5.x (Unity 5.x for the integration example, but can be used with other engines)
Level : intermediate
Here is a serie of tutorials that demonstrates how you can use Substance Designer 5 to create good looking terrains (well I hope they are good looking :-))

They are divided in 3 main parts :
- A mountain painter
- an ocean maker
- The publication and integration inside Unity
Playlist