Don't buy BioShock. It's not just about DRM, it's about design. They stole every single feature from somewhere else, and sewn them all together into a ridiculous Frankenstein game. The entire storyline is presented as a bunch of tape recorders scattered throughout the city. You shoot waves of mutant zombies... I mean, splicers, collect the tape recorders, shoot splicers, collect, shoot, collect, shoot...
You can't die. You can't die even symbolic death.
Everything that requires user interface is handled through vending machines. Some of them work once and don't take any money. Some of them are used to simply change your bio-upgrades - for free!
Ah, the plasmids. You stick a needle in your vein, wait 2 seconds, and your hand transforms into HL2 gravity gun. You do that couple more times, and you can use the awesome power of bioengineering to set stuff of fire using pyrokinesis.
Doesn't sound stupid enough? Come to the nearest device and "hack" it solving a meaningless puzzle, while the main game waits for you on pause. Do it again, and again and again.
It's one of those games that spit on common sense to achieve a bit of dumbed-down "fun".
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Did I mention
SecuROM broke my DVD driver?