Download Top-Down Cave Tileset Free Unity. 

Note: This asset works in Unity 5.

This is the definitive environment set that has everything you need to easily create mind blowing subterranean caves that will make your gamedev projects rock!

Here is just a taste of what you can make with this tileset:

Youtube Video

Webplayer Demo – Cave – Vegetation

Webplayer Demo – Cave – Volcanic

Webplayer Demo – Cave – Ore