Orpheus was one of many cancelled prototypes /concepts for games that french studio Darkworks worked on during 2003/2004. It appears as if Darkworks could not find a publisher and the title was abandoned. Instead, they started to work on I Am Alive for Ubisoft, before the publisher decided to move the development to Ubisoft Shanghai. Sadly we don’t know what kind of gameplay could have been planned for Orpheus and only few concept arts remain, to preserve the existence of this project.
Thanks to Dorwaks for the contribution!