Decemortuis

A group of friends are all placed in a secret location merely known as "The Manor". None of them can remember who they are, or who each other are, but they know that the only way to find out is to follow the instruction of a mysterious voice that plays from the mechanical collars that are stuck on their necks. This voice has dubbed themself "The Memory" and seems hell-bent on finding new ways to torture their subjects. The gang must band together and fight their way through puzzles, traps, and even killers that lay among them. Only when the identity of "The Memory" is revealed. It combines horror and mystery, with strategy and puzzles.