BioShock, released in 2007, is one of the most haunting, atmospheric, and memorable games in history. The first-person shooter put players in the shoes of Jack, as he uncovered the secrets of a brilliantly realized underwater civilization called Rapture.
Morality and philosophy were heavy themes in the BioShock, but what people loved most about the game was its crazy customization options. Players could choose to kill their opponents in a variety of ways, using all sorts of weapons and epic powers based on their moral choices.
Top 100 Video Games of All Time #3 - BioShock