One of the best games I've ever played. Beautiful storyline, fun gameplay, and good graphics. The environment, the sound, the music, and the atmosphere just completely fit the game so perfectly. When you're fighting for your home station, you can actually feel the thrill and intensity.

Basically, if you haven't noticed already, the game is set in Russia's Moscow metro system. There are about 3 or 4 levels which allow you to go outside, you'll be needing a gas mask as you cannot breathe on the surface because of the radiation.
It's better if you read the metro 2033's description instead of me telling you the story.

I would've explained more but the recommendation limits won't let me. Buy the game if you like horror, you liked Half-Life 2, don't mind sneaking around and are looking for a great storyline. There are a few minor glitches, but they shouldn't bother you so much. The only thing keeping me from giving this game a perfect 10 is the fact that the game is too short.

9/10