Metro 2033
Set in the shattered subway of a post-apocalyptic Moscow, Metro 2033 is a story of intensive underground survival where the fate of mankind rests in your hands. And if you happen to enjoy your on-screen visuals, it's one of the best-looking games we've seen in recent years.
Metro 2033 is pretty hard on the cards, even at a medium-quality setting. You'd need at least a GTX 460-class of GPU to play the game at a 1080p resolution. GTX 560's higher speeds means the game becomes smoother.