I/O (video game)

I/O
I/O Revision II cover art
DeveloperRegista
PublishersGN Software, Asgard
DirectorTakumi Nakazawa
ProducerTakumi Nakazawa
ArtistSoyosoyo
WriterTakumi Nakazawa
PlatformsPlayStation 2, Microsoft Windows
ReleasePlayStation 2
  • JP: January 26, 2006
Microsoft Windows
  • JP: August 29, 2008
GenreVisual novel
ModeSingle-player

I/O is a Japanese science fiction visual novel produced by Regista. It was released by GN Software for the PlayStation 2 on January 26, 2006 and by Asgard for Microsoft Windows on August 29, 2008 under the title I/O Revision II.