Tileable material made with Substance Designer 5.
It's possible to plug other height bmp to replace the skulls with other kind of bones/rocks etc.
This substance is very powerful, you can set the number of rocks, input, their colors, ground elevation, intensity of the cracks and more !
Except for the skulls, everything is procedural and done inside Substance Designer 5.
Skulls sculpted and baked in Zbrush.