Goddamn, I loved System Shock. But if you try to play it in modern times, it's just impossible. Someone, please make a mod where it uses standard WASD + mouse controls.

Very few games set the imagination on fire the way System Shock did. I'm still not sure why. It was almost a standard-ish horror game.

It was a combination of story, mechanics, and art, I think. The old-style graphics really added to the immersion (though you can't say this without seeming suspect).