Although a bit depressing this game is still a masterpiece and everyone should own a copy.
1. Enter room/building
2. Kill everyone in the room/building
3. Move into next room/building
Bioshock gives the player something relatively new the shooter genre.
Choice, instead of mindlessly following orders that appear on the HUD, Players get to choose how they want to play the game, they get to make choices that ultimately affect Raptures fate.
The storyline is world class, Rapture is an underwater city made by Andrew Ryan, A man who hated the world and loathed any sort of authority over him. Andrew Ryan believed in freedom, but to the point where things were getting out of hand and people were rebelling against his rule. What follows is finding more about your character, solving the mysteries and either saving Rapture or running it into the ground.