For me, it has to be Alien: Colonial Marines as it’s terrible due to inconsistent frame rate (moments the game ran smooth and times where lag was insane, even with the best hardware). Both player & enemy AI is crap since the combat wasn’t even that immersive plus Xenomorph AI isn’t as intimidating due to it being poorly implemented.
While it certainly was a bad game it didn’t destroy the gaming industry in the US. It’s a great symbol and was one of the many symptoms (lots of bad games) that got a lot of people fired …