Download the robot from my Artstation store: https://www.artstation.com/a/37971393
Download rigged characters from my Artstation store: https://www.artstation.com/a/20138247
The spider robot has been modeled in Blender 3.0. So, you can use the character in Blender 3.0 and up.
The chair has been modeled with quads and n-gons with Non UV-Unwrapping. So you can use the robot only in Blender.
Polygons: Faces = 239,962 , Vertices = 239,336