The Humble Store is offering a free copy of 2008 racing game GRID for a limited time. The free PC game is available until Saturday, Dec. 24.
Simply log in, go to the GRID store page, add to cart, and hit purchase. A Steam key will show up in your Humble account, and must be redeemed through Steam before Saturday, Dec. 31 at 10:00 am PT/1 pm ET or the key will disappear.
The Codemasters developed game is currently available through the Steam Store at a discounted price of $2.68. It is 82% off its original price, but Steam began its annual winter sale today and does not end until Jan. 2 for those who miss out on this free Humble deal.
Humble Bundle gave out free copies of another Codemasters game, DiRT 3: Complete Edition, last month to celebrate the 3rd anniversary of the Humble Store. The website is also hosting two bundles like the Humble Sierra Bundle Strikes Back, a rehash of the first Sierra bundle from last September, and the Yogcast Jingle Jam which offers up to 52 games and other in-game content for $30. All money from the Yogscast bundle goes to charity.