Julio Sillet has published Material Pack 08, which includes 9 free PBR materials with 2k textures for diffuse, roughness, normal, and height maps in a Blender 2.8 file.
The materials include:
- Cookie
- Fabric Denim
- Metal Paint Rust
- Roof Plastic
- Rubber 01
- Wall 01
- Wall Diamonds
- Wood 02
- Wood 03
The pack is licensed CC-BY.