The Ever-Growing Procedural Materials Library for Blender!

Website: https://sanctuslibrary.xyz

 FREE monthly updates with new materials 

Superhero Fabric

Knitted Wool (fuzz was added with particles)

Weathering Tiles (aging tiles)

Stylized wood planks

Some of the materials coming in the next update

Old Wood Planks

Old Brick Wall

Hair / Fur 

Lots of adjustable parameters

Overlays are only for demonstration purposes, the controls are in the Node Groups

Easy to use

Asset Library version without the need to install the addon

Advanced controls to adjust and create infinite variations

Try before you buy
Get the Lite version for  FREE  with 28 materials & 8 shader tools

NEW in version 2.0

Create and modify your own materials with damages, textures, patterns with the new Shader Tools panel on the Shader Editor N menu.
The first version has 23 tools and it will grow every month along with the library of materials.

Also in version 2.0

Improved Asset Library version (includes Materials & Tools) now respects the same categories that the addon has and also the same thumbnails

Cycles Glass with fake Caustics and Dispersion

Ceramic Hex Tiles

Architectural Glass

There are new icons to help identify a few things about materials

The color: green, yellow, red is for the processing time
If a render engine is recommended they have a letter: e for eevee and c for cycles
if the material works in both it will have no letters.
If it needs displacement the icon has dents. 

Other materials included in the Full version:

Calacatta, Guatemala Green, Marquina Black and Travertine Marbles

Stones

Car Paint

TR4 Resin

Corrugated Cardboard

Rubber

Superhero Fabric

Ice

Herringbone Flooring

Chainmail

Knitted wool

Leather