Panic Engine

You keep having chronic nightmares of a place. A place in the middle of nowhere. However the more you try to get it out of your head the more you dream about it until finally one night at the breaking point you go to the place were you saw in your dreams and it wasn't just in your head... Go into a scary museum, avoid security cameras, graffiti on expensive artworks, put up your own paintings and find keys to get to the different floors!