Gust is a video game developer and a brand of Koei Tecmo Games. They are best known for developing Atelier games. Gust was established on October 1, 1993 by Keiken Systems as an independent company meant to develop PC games, then entered the PlayStation home console market in 1994. The company was acquired by Koei Tecmo Holdings in 2011, merged with Koei Tecmo Games in 2014, then shifted to a brand organization system in 2016, which is now known as the "Gust" brand name.