Chaos;Head

Chaos;Head (カオスヘッド, Kaosu Heddo) is the first game in the series, originally released for Microsoft Windows in April 2008. It is described as a "Delusional Science Adventure" (妄想科学ADV, Mōsō Kagaku Adobenchā). Set in the year 2009, the story follows a shut-in named Takumi Nishijou, who finds himself involved in a series of serial murders.

Games

 * Chaos;Head (PC, 2008)
 * Chaos;Head Noah (Xbox 360, PlayStation Portable, iOS, Android, PlayStation 3, 2009)
 * Chaos;Head Love Chu Chu! (Xbox 360, PSP, PS3, 2010)
 * Chaos;Head Dual (PlayStation Vita, 2014)

Manga

 * Chaos;Head (May 2008 - May 2009)
 * Chaos;Head: Blue Complex (August 2008)
 * Chaos;Head H (September 2008)

Anime

 * Chaos;Head (Madhouse, 2008)
 * Chaos;Child Episode 0 (Silver link, 2017)