Today it's extremely easy to get your hands on the shooter. All you need to do to get a free PC copy of the game is "like" the officialseries page on Facebook.The Metro page will immediately provide you with a download code as soon as you hit the "Like" button. This code can be redeemed through Steam. The promotion will run until December 16th.takes place twenty years after a nuclear war. The human survivors in Moscow now live in the underground metro stations. The survivors have managed to eke out a living in the dark, but they're not safe. Players take on the role of Artyom, a young man who has to save his station from a mysterious threat.There have been many opportunities to geton the cheap lately. The game received a sharp discount during the Steam Thanksgiving Sale. It's currently part of the pay-as-much-as-you-want Humble THQ Bundle . THQ's never just given the game away for free before, though.developer 4A Games is currently working on a sequel, entitled. It's expected to arrive in early 2013 . This giveaway is intended to promote that game. The Facebook page where you acquire the download code has the latest trailer for, as well as an option to sign up for its newsletter.