Amnesia: The Dark Descent is a 2010 survival horror adventure game developed and published by Frictional Games. It was first released on 8 September 2010 for Microsoft Windows, Mac OS X, and Linux. Later, it was released to PlayStation 4 on 22 November 2016, Xbox One on 28 September 2018, and Nintendo Switch on 12 September 2019 as part of The Amnesia Collection. The game follows Daniel, who must explore the dark and foreboding Castle Brennenburg, while trying to maintain his sanity by avoiding monsters and unsettling events.