Some people say the only thing you need to make a high quality game is tessellation shaders. Some say that those folks should end up in a hospital on Guerrero street.
Regardless of what you think of tesselation shaders this tutorials from Peer Play will teach you how to make your mark with tracks in the snow. Part one is the theory behind it and part two is the implementation of the vertex displacement shader. Part three is down below.
If you don’t want to make your own tessellation shaders then I can suggest these two alternatives.