KotOR but without TOR. MMOs are... well, not for me, let's leave it at that.
Knights of the Old Republic though, is brilliant. Both the first game and the sequel. In fact, the first game is almost my favourite (read, what I think is 'the best') game ever made. The game is better than actual Star Wars movies, save maybe A New Hope and Empire Strikes Back. It's so good, I actually played the mobile version. Imagine that.