Ultima Underworld: The Stygian Abyss

Ultima Underworld: The Stygian Abyss is the first RPG, which used a first-person view with non-discrete movement. You, in the role of Avtiar, already accustomed to the Ultima world, will have to go down after the daughter of Baron Olmrik into the very heart of the Stygian Abyss. You must return with the girl, or disappear into the darkness.