Xenosaga Episode III: Also sprach Zarathustra (ゼノサーガ エピソードIII ツァラトゥストラはかく語りき Zenosāga Episōdo Surī Tsaratusutora wa Kaku Katariki?) is a role-playing video game for the PlayStation 2, and the third game in the primary Xenosaga trilogy. Also sprach Zarathustra, literally "Thus spake 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.