Microids and developer Paul Cuisset have released Subject 13, a combination adventure/puzzle game, for Mac OS X and Windows.

In Subject 13, the player embodies Franklin Fargo, a discreet physics professor. Franklin leads a lonely and bitter life since Sophie, her fiancée, was killed during a robbery. One morning, he wakes up in a scientific abandoned underground plant with only one link with the outside world: a voice that calls him "Subject 13". His goal is to escape from this place where he is being held captive and to find out more about the reasons of his imprisonment.

Subject 13 costs US$13 for a limited time, then the price goes to $20. It's available here (http://store.steampowered.com/app/322970).