Bioshock:Rapture's secrets is game for the Xbox 360. Bioshock: Raptures Secret's is about hidden storys about rapture. It is the year 2300 a lot of years have passed since Raptures explosion. A man named Christopher Walles goes diving to find the lost city of Rapture. He found unexplaind markings on some of Raptures pieces. He begins to notice that there were objects moving. Those objects turn out to be elite big daddy's Christopher Walles finds a big daddy suit and brings it up to the surface. Later he begins to upgrade it and becomes the Master Chief later on in the years Halo starts and then the new master chief is reborn. Christopher Walles goes through crazy adventures through this entire game.