Nvidia giving out free Metro 2033 keys on Facebook

Happy bleak post-apocalyptic holidays!

Happy bleak post-apocalyptic holidays! Hardware giant Nvidia is giving away free digital copies of Metro 2033 in exchange for hitting the "Like" button on its Facebook page. The promotion lasts until into Christmas Eve.

4A Games' atmospheric shooter is one of many high-quality games, such as Portal and Amnesia: The Dark Descent, that are turning up in sweeping sales eventsand bundle salesat a heavy discount. Its upcoming sequel, Metro: Last Light, took a few delaysas THQ struggled with financial difficulties, but it still seems to hold the same excellent scaresand Russian expletives as its predecessor.