.hack//G.U. is the title of a series of three video games for PlayStation 2. The first title in the series, Vol.1 Rebirth, was released in Japan on May 18, 2006 and on October 24, 2006 in North America. Vol.2 Reminisce was released in September 28, 2006 in Japan and was released on May 8, 2007 in North America. Vol.3 Redemption was released in January 18, 2007 in Japan.
an extended description!