Game material procedurally generated in Substance Designer & Rendered in Marmoset Toolbag.
Free Download:
www.tinyurl.com/yapgcfku
Check more of my free assets:
https://www.artstation.com/artwork/Dxalmn
https://www.artstation.com/artwork/k4VO96
https://www.artstation.com/artwork/3o6rkD