We initially called the new profession Archeology, because it involves collecting stuff from ruins (in the sky), but we found that we were running into expectation 'problems' with people who thought you should be digging stuff up. So we'll save that idea for later and we renamed it to Rune Crafting.

Runes will be used to unlock new blocks to build with, unlock retired vault styles, and give you something to craft that will let you use extra experience points.