11eyes was originally released by Lass in 2008 as a blood-drenched, school-themed eroge subtitled Sin, Damnation and the Atonement Girl. The game later received a non-ero edition for the Xbox 360 called 11eyes CrossOver (released on April 2, 2009) and eventually it was also adapted into an anime. As expected, considering that pretty much all the other games produced by 5pb. already had an anime version: Night Wizard, Chaos;HEAd, Prism Ark and Memories Off. The TV anime series began airing in Japan on October 7, 2009. A PSP game version of 11eyes CrossOver is also being made, for a January 28, 2010 release.