User blog comment:ZeroEdgeir/One Crazy Castle/@comment-4581788-20120131211949

Okay, got my underground jungle made now, just waiting on grass to grow. Next will be designating areas to be later hallowed/corrupted underground. Also need to build surface Hallowed/Corrupted biomes with respective deserts too.

My goal is to have a tower where, within it's walls, you can find/farm anything except for ores/gems.