I never played Planescape Torment
Then drop whatever you're doing and play it.
Sorry, but what I remember from the book was so bad that combined with the isometric view I really have no desire. What was so special about this game? Judging from the book the story can't be it...
Hey, even Vault Dweller loved the game, after years of rationalizing not playing it. Don't forget the Bronze Sphere scene that all of us have gotten choked up on. That's the #1 CRPG moment right there.