I really, really like Metro 2033. I've already beat it a couple times, plus multiple restarts just to play a little here and there. For an 8 hour game, I've put a fairly large amount of time into it.
The last time I played it, I started recording from the beginning. I threw together this fairly long video just to show off clips of the game, but also I hope it kind of tells a story too. I kept several of the key conversations that occur for this reason. It may be a little slow, but if you've got the time, it's a good video to watch (in full screen 1080p!)