When I came to Bioshock, I knew that it was mentioned in discussions of steampunk or diselpunk narratives, but not much else. Then my girlfriend gave me her old Xbox along with a copy of the game shed inherited. I tried it and was captivated with it. This and the sequel are among the few games I have stuck with playing till the end. And yes I have advance ordered Bioshock infinite as well.
Be warned, there will be spoilers in this article.
Bioshock began out of a desire for a more sandbox environment then the previous System Shock games. The plot went through many changes before they settled on Rapture as the location, the original character being conceived as a cult deprogrammer. The game moved from a role-play title to a first-person shooter. The time that the game spent in development helped it become as different and acclaimed as it was.