Labyrinthos

Labyrinthos is visited as an area in Xenosaga Episode II - Jenseits von Gut und Böse in the present day and in Xenosaga Episode III - Also Sprach Zarathustra during the Miltian Conflict. It the central tower of the U-TIC Organization on Old Miltia.

Episode II
Upon making their way to Old Miltia, the party arrives at Labyrinthos and travels through it, eventually finding the main terminal. There they are able to examine the data in Canaan and discover Ormus' role in the Miltian Conflict. Heading further in, they are confronted by Margulis and must fight him. After being defeated Margulis retreats with the A.M.W.S. Scutum. Upon reaching the Zohar Isolation area, the party finds the, along with Proto Omega and the system using Cecily and Cathe to connect to the Zohar. Sergius arrives and after he activates the system, KOS-MOS fires at it and destroys it, killing Cecily and Cathe. Sergius departs with Proto Omega and the Zohar, destroying the entire planet of Old Miltia in the process as the Ω System is revealed.

Episode III
The party makes its way into Labyrinthos, believing that by stealing Vessels of Anima stored there they will be able to return back to their time. The party fights its way into the entrance via the Acute Neurosis Treatment Facility then heads deep inside. While there MOMO is able to speak with Joachim Mizrahi, who doesn't recognize who she is. Eventually the party makes its way to the basement where it is able to spy on a conversation between Margulis, Sellers and Kevin Winnicot. From there the party is able to find the Vessels of Anima, taking them for each of their E.S.s with the exception of Asher, which instead must use a system based on the Erde Kaiser. The Professor's activity on the U-TIC systems alerts U-TIC to their presence and the party flees. Along the way out however Shion hears about her mother and departs Dinah to head inside. The party, facing heavy attack, is forced to leave without her. Kevin reveals himself to Shion, but she is soon captured by U-TIC soldiers and brought before Margulis, young Kevin and her father Suou Uzuki. The party returns to Labyrinthos in order to rescue her while the Federation's invasion of Miltia occurs. Suou lets Shion go, asking her to save young Shion. The rest of the party meanwhile is confronted by Pellegri and defeats her, enabling their escape.

Normal Enemies (Episode II)

 * Calx II Revised
 * O-78 Grisly 2
 * P.S.S. - B2
 * P.S.S. - C
 * P.S.S. - F
 * P.S.S. - P2
 * P.S.S. - S
 * Revised Carnicos I
 * Revised Testud
 * Vive II Revised

Bosses (Episode II)

 * Margulis

Normal Enemies (Episode III)

 * Carnicos I
 * Carnicos II
 * Domo-Alpha
 * Domo-Beta
 * O-78 Grisly 2
 * P.S.S. - A
 * P.S.S. - B
 * P.S.S. - C
 * P.S.S. - F
 * P.S.S. - P
 * P.S.S. - P2
 * Stole Arma
 * Stole Marine
 * U-TIC Soldier A
 * U-TIC Soldier B
 * Yacud Cannon

Bosses (Episode III)

 * Omega Universitas
 * Pellegri
 * Pellegri's Soldier

Episode II

 * Segment File Number 5

Episode II

 * Antidote H x3
 * Antidote L
 * Bio Sphere x2
 * Boost Max x2
 * Class Upgrade B x5
 * Decoder 5
 * Med Kit M
 * Med Kit S x3
 * Rejuvenator DX
 * Rejuvenator E
 * Secret Key 13
 * Secret Key 20
 * Skill Upgrade A x5
 * Skill Upgrade D x5

Treasures (Episode III)

 * 2000 G
 * 5000 G
 * All Repair
 * Cleanser x3
 * D-Frame I
 * D-Nullify Guard
 * Decoder 13
 * Erde Kaiser Fury Device (Segment File 5)
 * Ether Pack M
 * Ether Pack S x3
 * Half Repair
 * Hinoka Kagura (Segment File 15)
 * Jin's Swimsuit
 * Med Kit DX x2
 * Med Kit L x3
 * Med Kit M x2
 * Med Kit S x2
 * Nano Repair DX
 * Nano Repair M
 * Nullifier
 * Rejuvenator M x2
 * Revive L
 * Revive M x2
 * Rosario of Grief
 * Security Level B Card
 * Staff Room Access Key
 * Suou Uzuki's PDA
 * Update File 10