UW1 was groundbreaking when it was released. There was absolutely nothing else like it. To this day it is still the most immersive game experience I have ever had. Yes, the contols are clunky, but with a little practice they work just fine. The graphics were state of the art on release but are now quite dated. The openness and immersiveness of this game are what makes it shine. Few games since have come even close to equaling that aspect of UW. If you have not played UW before, then it will give you a view of the birth of first-person gaming.
