Thread:AtomicScientist/@comment-1392407-20130816191221/@comment-4586908-20130816191942

Quoting ErkelonJay: Possibly, the mechanical beings were created as obsidian miners, to mine in the dangerous conditions (for those who don't know,obsidian  is created by Volcanoes, so this world should have a few fire elements to it.) Over time, the mechanical beings became more and more independent from their creators, and disappeared from history. Some could be NPCs who no longer function, while others that still function are aggresive. --Jay

Don't blame me, Blame Jay. I thought you had agreed to that.