I/O is a Japanese sci-fi mystery visual novel developed by Regista set in a near future Japan, where you play one out of four protagonists and try to uncover the mystery surrounding the killing spree in Megalopolis Tokyo.
Experience I/O Game (USA) online exclusivly at RetroSpot.net. Get I/O ROM and use it with an emulator of your choice. I/O can be played on PC, Mac, iOS and Android using our high quality downloads. PastGames is Americas #1 choice for Retro Games like I/O.