Metro Last Light.

Wow this game is good.  Even though Metro 2033 was fun it had a ton of tech issues which really took you out of the experience.  I'm happy to say that Metro Last Light fixes just about everything while being on the most atmospheric single player games I've played all year.  Visuals are really amazing while not being super taxing on the hardware.   What's nice is that the game switches up the gameplay and unlike other games does it really well.  From shooting some type of mutant gorilla to stealthing around human enemies out to kill then being absolutely terrified as you are flashing your light around in the dark trying not to be eaten by the scariest spiders I think I have ever encountered in a video game.  I paid around 30 bucks during a preorder but I'm sure  it will be cheap fairly quick at least on the PC side.  Can't recommend this game enough.