Akai Ito (アカイイト, lit. "Red Thread") is a Japanese horror adventure game by Success Corporation, released exclusively for the PlayStation 2 in Japan on October 21, 2004. A reduced price "popular edition," included in developer and publisher SUCCESS' SuperLite 2000 Series, was released on October 27, 2005. The title refers to the mythical red string of fate. Akai Ito has not been officially released outside Japan, but there has been a fan effort to translate it, similar to the popular dōjin game Tsukihime.

The game is already patched. Everything you need to run the game, including instructions, is in the folder