is a role-playing video game for the PlayStation 2, and the third game in the primary Xenosaga trilogy. Also sprach Zarathustra, literally "Thus spoke Zarathustra", is also the title of Friedrich Nietzsche's most famous work, which introduced the concept of the Übermensch. The game was developed by Monolith Soft and published by Namco for the PlayStation 2 on July 6, 2006, in Japan and on August 29, 2006, in North America.