If you’re a fan of horror games, there’s a good chance that Amnesia: The Dark Descent is already in your library.
If, however, it’s not already in your library, you should head over to Steam right now and get it. Frictional Games has made the game free to get on Steam until 10AM Pacific time on Wednesday the 16th (or, tomorrow).
It’s one of those games that I have in my backlog, but haven’t completed yet. It has a really neat Lovecraftian story and atmosphere.