Quote Originally Posted by Tsar View Post
Portal was the last original game I played(though it is a fps in a way.)

edit actually I don't think anything is a 100% original
Portal wasn't original, Narbacular Drop was developed by a couple of guys as a university project. Valve then picked hired them and they then went on to develop Portal. Similarly Prey Had portals, sure you couldn't select where to post them but still.