The Supporter Pack contains the following DLC for Edge of Sanity: Soundtrack: The full atmospheric soundtrack of Edge of Sanity. Digital Artbook: A look into the development of Edge of Sanity, featuring concepts and illustrations. Dog Skin Pack: 4 additional skins for your favorite furry friend. Set in the unforgiving lands of Alaska, Edge of Sanity is a Cthulhu-inspired, 2D survival horror game. Uncover a disturbing story while madness claws at your mind. Lead a group of survivors and explore, scavenge and survive together - against untold eldritch horrors.