I absolutely love that game. I wish I knew where I put my disks. I never finished it....Planescape: Torment
Whoah. This old game has tricks. And it's engaging. No wonder they consider this a classic.
Does that include the Metroid Prime series? Because normally I find FPSes mind-numbingly boring, but I really enjoy the Metroid Primes. If they aren't considered FPSes, it may explain why I like them....But seriously though, Metroid is not an FPS. ERGH