Gunslinger Stratos (ガンスリンガー ストラトス, Gansuringā Sutoratosu) is a series of third-person hero shooter video games, developed by Byking and Taito, and published by Square Enix. It debuted in arcades on July 12, 2012, with the scenario provided by Norimitsu Kaihō (from Nitroplus) based on a concept by Gen Urobuchi. It uses Silicon Studio's Orochi game engine, and runs on the Taito Type X³ arcade system board. Its sequel, Gunslinger Stratos 2 (ガンスリンガー ストラトス2, Gansuringā Sutoratosu 2), was released on February 20, 2014, featuring new characters, new battle mechanics, and new stages. Tetsuya Nomura and Akira Yasuda each created two characters exclusively for the game. A sequel, titled Gunslinger Stratos: Reloaded (ガンスリンガー ストラトス リローデッド, Gansuringā Sutoratosu Rirōdeddo), was announced to be released in 2016 for Windows PC. The servers were closed on March 29, 2016.