https://player.vimeo.com/video/655319043?h=ea1495ce02&badge=0&autopause=0&player_id=0&app_id=58479
The terrain on the right has tfCurve enabled.
There is a Curve setting loaded in by default, which can be manipulated to get the scene you require.
In this image, the custom Curve setting is directing this stepped terrain.
There are various preset Curve gradients available to load in from here.