Atlus Co., Ltd. Kabushiki gaisha Atorasu) is a Japanese video game developer, publisher and distribution company based in Tokyo, and a subsidiary of Sega. It is best known for developing the Megami Tensei, Persona, Etrian Odyssey and Trauma Center series. Its corporate mascot is the Shin Megami Tensei demon Jack Frost. Atlus was founded in April 1986, and existed until it was dissolved in October 2010 by Index Holdings. After the dissolution, the name Atlus continued as a brand used by Index Corporation for video game publishing until 2013. Atlus in its current incarnation was founded as Sega Dream Corporation in September 2013, a new shell corporation established by Sega. In November 2013, Sega Dream was renamed Index Corporation, following the bankruptcy of the original Index Corporation. In April 2014, Sega implemented a corporate spin-off in which the contents and solution businesses of Index were spun off as Index Corporation, while the rest of Index Corporation (formerly Sega Dream) was renamed Atlus.