Free dcc apps
free apps to make games
material maker
- https://www.materialmaker.org/ material node editor, similar to Substance
- QuiltiX is a node editor to edit, and author MaterialX materials of 3D assets
Photoshop alternative
- https://www.photopea.com/ Photoshop but in your browser
- https://krita.org/en/ Krita
3d
game engines
texture library
- https://www.textures.com/free good quality free samples, limited options
- Material Maker has a material library, but art quality is a bit hit & miss