Board Thread:Lore Discussion/@comment-69.34.43.119-20140525201439/@comment-24980617-20140531170355

While that is a very good theory. There is actually a confirmed reason why they disappeared. It involves a lot of the Tribunal of Morrowind and stuff, but basically a Dwemer high priest tried to harness the power of the "Heart of Lorkhan" and turn it into a automaton god thing... in the moment he touched the Heart every Dwemer in existence disappeared.