Psikyo^{[lower-alpha 1]} was a Japanese video game developer and publisher known for its shoot 'em ups and undressing mahjong games. It was founded in 1992 by former Video System staff who worked on the Aero Fighters series. Psikyo was mainly an arcade game developer, and ported some of their games to home consoles as well.

Psikyo was acquired by X-Nauts in 2002. In 2003, it was reported that Psikyo was shutting down.^[2] Shortly afterwards, X-Nauts stated this news was wrong.^[3] Games would continue to be released under the Psikyo label, but would be outsourced to other teams. In 2007, Psikyo programming veteran Keiyuki Haragami started a company called Zerodiv to handle distribution of Psikyo's catalog. In March 2019, Zerodiv was acquired by City Connection.^[4]