I do not want to reveal too much, but: play these games, above all, part. 1 Incredible story with more than a twist, the skin a from the pines. The atmosphere of the underwater dystopia of Rapture is incredibly dense and the game and gunplay unique (only hacking occasionally Kekst). The characters are super-quirky and sometimes very scary, the opponents but not very varied. I particularly enjoyed the ethical and moral gray area, in which the protagonist and the story always moves: good and evil are here not necessarily the measure of all things, and if they do they are very difficult to separate.
All in all: strong buy recommendation, especially at the price!
Important Tip: To install all additional content before it gets going, otherwise you can later use no more Score Laden and not the cool new game plus mode.