The game follows Nelson Tethers, an agent that is part of the FBI's largely ignored "Puzzle Investigation Division." After the White House's latest shipments of erasers stop arriving and are instead being replaced by mysterious letters with obscure puzzles, Tethers finally finds work. Further investigation leads him to the shutdown eraser factory in the wintry forest town of Scoggins, Minnesota. However, upon arrival, he begins to realize that things aren't quite as they seem.Go to: http://store.steampowered.com/ and download STEAM client
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Install and start application, login with your Account name and Password (create one if you don’t have).
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Click the Games Menu.
Choose Activate a Product on Steam…
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After successful code verification go to the “MY GAMES” tab and start downloading.
