[Ended] Valve Christmas Promotion: Get Left 4 Dead 2 for Free

Valve for Christmas distributes free 4 Left 2 Dead 2 - all you need is to have time to download (10 GB) and start the game before 10:00 pm December 26, Moscow time.
After launch, the game will remain on your account forever.

A similar action was already in the spring of 2010 with Portal 1, associated with the release of Steam and Portal for MacOS.
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Install Left 4 Dead 2 from the store page: store.steampowered.com/app/550

PS: at the moment, Steam can not cope with the load, and the store and the community every now and then fall.

PPS: Some say that the game is added to the library after clicking the "play" button on the site (without installing the game) and does not disappear. In the news it was said that you need to play the game, although the method of adding a free subscription is supposedly used. However, it is not known for sure, in theory this subscription could be deleted in the future if the game was not started. If you do not have time to deflate, at least click the "play" button on the store page to add a subscription to your account, maybe it really will remain.