Time travel played a big role in the later Legacy of Kain games (from Soul Reaver 2 on). I remember liking them at the time (except Blood Omen 2), but I'm not sure how well the time travel story holds up now in terms of plot holes. It also didn't play a major role in the gameplay so I wouldn't really call them time travel games. It's kind of hard to think of any really good examples of games with time travel plots or gameplay mechanics. The better ones in the latter case tend to use them in a very limited short term capacity. I'd agree that Braid is probably the best I can think of in terms of gameplay right now.