Gamespot talks to Ken Levine about the story and themes in BioShock in their new interview. Please be warned that there are story spoilers so you'd best check it out after you've completed the game already.

"KL: If the sales success of BioShock means anything, it means that we can trust our audience a little more. With the themes--both from a gameplay standpoint and especially from a theme standpoint, a story standpoint--if you told anybody including myself that BioShock was going to be the kind of commercial success it's been, they would have done a double take."

vraptor