A complete kit for building 3/4 perspective, or RTS style caverns. All components are put together in prefabs that are ready to be snapped together in what ever configuration you need. Also included in this set are wall mounted torches and a larger sconce (big oil fire pit) all with particle fire and smoke and the sconce emits sparks. Also included for dressing up the caves are support beams and various sized rock piles and columns.

But its way easier to just go take a look at it at http://www.syntheticmonkeys.com/modular_caverns.html