Some few months ago I completed Unreal + Return to Napali again, they are selling it now almost for free with all other Unreal's, it is IMO one of the best, old 20th century classics. Next to Wolf3D, Doom and Duke, hell yeah.
EDIT, sorry for off topic, I was thinking I am replying to the Unreal 1 HD youtube movie intro that someone recently added in other post :) But I also hope that next Unreal will be released! And it will kick ass