Valve has a special Christmas gift for Steam users: a free copy of its zombie survival shooter, Left 4 Dead 2.
The game, which is available for Windows, Mac OS X and Linux, puts you in the shoes of a survivor in a zombie apocalypse. Your task is simple — survive until help arrives — but to do that, you'll need the help of other survivors, making co-operative gameplay a must.
See also: Apple Gives Out First '12 Days of Gifts' Freebie Today
The game will be free for download until Dec. 26, 1PM EST. You can download it from Steam by going to the Left 4 Dead 2 page and clicking 'Install game.' Steam's servers are currently overwhelmed with the demand, though, so don't be surprised if you have to wait a bit until you actually get the game.
Have something to add to this story? Share it in the comments.
Image: Valve