Dagon: by H. P. Lovecraft

Dagon is a 3D narrative experience in madness based on the cult short story of the same title by the master of cosmic horror and weird fiction, H. P. Lovecraft himself. It’s an interactive portal into the world of the controversial genius and his highly acclaimed Cthulhu Mythos, open to both newcomers and long-time devotees. (mobygames.com)