Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Top-Down Desert Free.
Top-Down Desert v1.0
Create a unique level for your Top-Down game with this Desert pack!
The set contains a lot of assets designed especially for dry and dusty environments diversified by oasis, buildings and many scene props.
In the package you will find:
– almost 300 of models of plants, trees, rocks, props, constructions and buildings
– fully prepared materials
– mobile-friendly meshes
– hand-painted, high quality textures
– 8 different ground textures to choose from
– particle system for dust
– 2 Demo Levels for review and testing.