The opening video for the PSP and PS3 versions of Steins;Gate: Hiyoku Renri no Darling - the fan disc that's releasing in Japan this May 24, along with the PS3 port of the main game Steins;Gate. The non-ero visual novel Steins;Gate was developed by the Japanese studios 5pb. and Nitroplus, as a "hypothetical science adventure" game. The story takes place in Tokyo's Akihabara district, one year after the events of Chaos;Head - the game's prequel of sorts from 2008. Steins;Gate was originally released for the Xbox 360 in October 2009, followed by ports for the PC (July 2010) and PSP (June 2011).