The Humble Store is currently giving away Steam copies of Dirt 3: Complete Edition. The game normally costs $30, but you can pick it up free of charge until Saturday, November 12, at 10 AM PT.
You can claim the game for yourself here. All you need to do is add the game to your cart, provide your email address or login to your Humble account, and click "Get it for free!" Follow the instructions after that, and you'll have a code for Dirt 3 on Steam.
Dirt 3's Complete Edition comes with the game and seven content packs. Five of them give you new vehicles, while the other two add rally stages and new tracks.
In GameSpot's review, Dirt 3 received a score of 9/10. Critic Justin Calvert praised it for its great visuals, handling, and presentation. He concluded, "Whether you're a veteran of the Dirt series and the long-running Colin McRae Rally series that preceded it, or someone looking for a way into off-road racing, Dirt 3 is the game you should be playing."