A zombie game in a closed building where you wake up all alone with no memory of how you got there; all while the living dead could break through the door any minute. Yeah, I know...
Play this one though. It's very polished and well implemented. There's lots to explore, and examine. And you learn a lot about barricades: how to erect them properly if the creatures mustn't get through, how to get through them if you yourself must. Also: chemistry, yaay!
The game has a twist at the end, but you must be blind and deaf not to have felt it coming. Still nice though.
I particularly liked the epilogue. It gives Divis Mortis some gravitas, albeit after the fact. (Well, it is an epilogue...)