Demon's Souls is a 2009 action role-playing game developed by FromSoftware for the PlayStation 3 under the supervision of Japan Studio. It was published in Japan by Sony Computer Entertainment in February, in North America by Atlus USA in October, and in PAL territories by Namco Bandai Partners in June 2010. The game is referred to as a spiritual successor to FromSoftware's King's Field series.

Atlus West, formerly known as Atlus U.S.A., Inc., is the North American publishing branch of Japanese video game company Atlus, primarily known for localizing games for both them and other third-party developers. Its first original role-playing game was Revelations: Persona on the PlayStation, described by staff as an attempt to break into the Western role-playing game market and establish the company's Megami Tensei franchise through its Persona sub-series.