1 Thunderscape 2 Anvil of Dawn 3 Daggerfall 4 Ultima (the Underworld serie's)
And System Shock 1 and 2 but the most people won't agree with me that it is a RPG game, but more a FPS.
I have been frozen in my seat on many occasions not wanting to move my mouse for fear of what might happen next, I’ve heard sounds and voices so clear that I was becoming unsure if they were actually coming from the speakers