Japanese books
There have been several Japanese books and comics published concerning the "Xenogears" franchise. "Xenogears God Slaying Story", a series by Masatoshi Kusakabe, was published by Shueisha in 1998. DigiCube published both "Xenogears Perfect Works" and a memorial album named "Thousands of Daggers", which contains the entire script to the game in Japanese, along with screenshots. Two manga books, "Xenogears Comic Anthology" and "Xenogears 4koma Comic", were released by Movic. Movic released wallscrolls, notebooks, pins, keychains, stickers, and postcards depicting the "Xenogears" cast.