Xenosaga is a role-playing video game series developed by Monolith Soft and primarily published by Namco. Forming part of the wider Xeno metaseries, Xenosaga is set in a science fiction universe and follows a group of characters as they face both a hostile alien race called the Gnosis and human factions fighting for control of the Zohar, an artifact connected to a god-like energy called U-DO.
All three parts of the series are named after books by Friedrich Wilhelm Nietzsche. The game also contains allusions to his philosophy.
Synonyms: Zenosāga