Cadaver using the Neverwinter Nights game Engine..... lush!
The engine is the weakest part of the game. It's not scalable as it's claimed, there is no sky, strange view angles (though hacks are available), below average graphics, stupid interface. The good thing about NWN is, it's a digital alternative to pen&paper rpg and is very funny on a lan. Perhaps cadaver can be created as a mod but will it be as cool?