Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Alien Terrain Pack Free.
Alien Terrain Pack v1.0
[Alien Terrain Pack]
This pack works both for alien or fantasy environments. With over 170 prefabs included you can find organic shaped mountains, rock columns, glowing mushrooms, alien plants, sharpened rocks, giant crystals, stone arcs and many more pieces to create your own environment according to your needs. Also including particles for ambientation fxs and full working demo to check the asset. The pack includes also an alien texture library & more additional stuff.
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