Ω System

From Xenosaga Wiki

The Ω System (spoken as "Omega System") was a massive space fortress housing Proto Ω and the Original Zohar. Apparently, Ω System is an incarnated version of Old Miltia, for the planet was ripped apart from the inside out as the Ω System emerged. The Ω System has been fitted with many puzzles and locks to keep unwanted visitors out, as well as a pair of large guardian mechs (one of them taking the form of a full scale Cathedral). Proto Ω and the Original Zohar are housed in the core of the Ω System. Shion Uzuki and her allies entered the Ω System to stop the Patriarch and his plot. However, after a stalemate battle (and a brief alliance with Albedo to take down the Patriarch), Testament arrived to destroy the Patriarch. After this chain of events, Albedo morphed Ω System into a space-time anomaly for his own motives. Many say that the Ω System resembles a larger, space-oriented version of Merkava, the structural part of Deus that served as the final dungeon of Xenogears.