Knights of the Old Republic II - The Sith Lords
Probably my 100th+ play through of this game and it still holds it's glory. The game is obviously dated and has a few bugs here and there (I got it from Steam), but overall, it's still a lot of fun. Doing a dark side character at the moment, and am currently working on bringing Handmaiden and Atton toward the dark side with me. I know you can turn both of them into jedi as well, i've done it.