Merry Christmas! To celebrate the season of giving Green Man Gaming are giving away free Steam keys through their Playfire service. All you have to do to get a key is create a Playfire account and link it to your Steam account. You'll receive an email with a Steam key randomly selected from the collection below.

Gun Monkeys

Canyon Capers

Sanctum

Postal

Numba Deluxe

Cobi Treasure Deluxe

Victim of Xen

PixelJunk Monsters

Speedball 2

Huntsman Treat

Ten lucky readers will receive a Steam key for this year's best orc-stabbing simulator Middle Earth: Shadow of Mordor. What better way to celeberate Christmas than by taking down Sauron's armies, one general at a time.

Playfire is a gaming companion client that tracks your stats and lets you earn rewards and incentives for playing the games you love. Sign up now on the Playfire site.

Terms & Conditions - While stocks last. - There is no alternative for under 18 claimants, or when games run out. - Free game giveaway will be live until 23:59 GMT on 2nd January 2015 or while stocks last. - Claimants must have a registered Playfire account, and they must link their Steam ID in order to be eligible to receive the free game - full Terms & Conditions available here.