bioshock. several hundred critics gave it an average rating of 97%.
i expected this to happen. bioshock isn't a game for everyone. people think that because its such a good game in the reviews, they'll love it. srry himself admitted that he had never heard of it before a week or so ago when it was getting perfect reviews everywhere. usually that doesn't merit buying it after a mere week of researching it.
i'd recommend you get hold of a copy of system shock 2, jump on IRC and i'll step you through how to install the custom mods that make the game work better, and play (and finish) it. if you like system shock 2, you'll like bioshock. it's that simple. (this isn't directed at anyone in particular, everyone should do it)
EDIT: if you're still unsure, just wait for a crack and download it!
the game is alot about the storyline, if you want a mundane shooter, go play far cry.