A revolutionary reactor made by the genius scientist Klaus Zimmer. Klaus made a pact with a unknown god to receive the knowledge needed to build his reactor. The price of this information was the transformation of all citizens of the southern island of Ostinsel. Overnight the islands population would be transformed into a race known as tieflings. After the reactor's creation the knowledge of its construction was considered a highly confidential government secret. What is known is that the Reactor used the natural life force of the planet to create energy. In 2941RH the reactor would suffer a catastrophic meltdown leaving the continent of Ruhm barren of life. After the reactor meltdown The Raven Order would destroy any remaining information about the reactor to stop another meltdown from ever happening.
Formerly the Owls of Freedom used Reactor Ein's husk as a base of operations. Currently it remains dormant once more.