The first episode of the Xenosaga series, developed by Monolith Soft and published by Namco, was released for the PlayStation 2 in Japan.
The game's English localization was released in North America, bringing the story of Xenosaga Episode I to a wider audience.
The game was released in Europe, completing its availability in major global markets for the PlayStation 2 platform.
The Zohar, a mysterious and powerful artifact, is discovered, igniting research and technological advances.
U.R.T.V. (U.R.T.V. stands for Unknown Research and Tactical Vehicles) project begins, aiming to create advanced combat units.
The construction of the Woglinde, one of the Gnosis detection and combat ships, is completed.
The Woglinde first encounters the Gnosis anomaly and suffers severe damage due to its mysterious nature.
Shion Uzuki joins Vector Industries as a scientist working on KOS-MOS development.
The KOS-MOS android project advances, intending to create a powerful weapon against the Gnosis.
The Woglinde is destroyed orbiting Earth due to a massive Gnosis attack.
KOS-MOS is deployed aboard the Woglinde-class ship to combat the Gnosis directly.
The Evangeline, a new Vector ship designed to fight Gnosis, is launched into space.
Shion Uzuki and her team are assigned to test KOS-MOS during the Gnosis attack on the Woglinde, marking the beginning of the main storyline.
