Xenosaga: Pied Piper

Xenosaga: Pied Piper is a 2004 role-playing video game co-developed by Monolith Soft, Namco, and Tom Create and published by Namco in 2004 for mobile devices. A spin-off of the Xenosaga trilogy and part of the Xeno metaseries, the story follows the human life of cyborg Ziggurat 8—a key character in the Xenosaga trilogy—a century before the events of Xenosaga Episode I. Gameplay follows a similar system to the mainline Xenosaga games, but adapted for mobile devices.

The storyline of Pied Piper was planned from an early stage and was incorporated as a mobile title after Monolith Soft was approached by Namco's mobile division. Originally released through Vodafone Live, it would later be released through NTT Docomo's i-mode. The storyline was written by series creators Tetsuya Takahashi and Soraya Saga; Pied Piper was Saga's last project for the Xenosaga series. The game's title is a reference to the German legend of the Pied Piper of Hamelin.