This is a paid asset, but now you can download Geometric Environment Art for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
For more detail this asset from the Unity Asset Store: Click Here
Geometric Environment Art v1.0
“If possible, please buy the package to support the developer”
A huge set of beautiful environment models all made in a distinctive geometric polygonal art style. Designed to make your game stand out from the crowd.
Over 90 prefabs, all set up with collision and ready to be dropped into your scene.
3 separate example scenes showcasing summer, winter and desert environments.
3 Skyboxes
10 Buildings
23 Rocks
5 Clouds
18 Terrain Pieces
32 Trees
Animating Godrays
Dust and Snow particles