Steam's New Refund Rules
And Steam wants to change that. Today they are in full-force in testing their new refund program, where you can return almost anything you purchase for any reason. No answer is too absurd: my cat didn't like the loud noises. Refund!
There are caveats to this, of course. The game needs to have been purchased within 14 days or less, and not have been logged more then 2 hours of game time via the Steam client. This includes DLC. In-game purchases will have a 48 hour refund window. In the case of some DLC that makes extreme changes to the game, such as boosting your character up a higher level, those can not be refunded, and will be marked on the product page as such. This also applies to any bundles you may have purchased, so long as the combined play time of all of the bundled items is under 2 hours. Movies are not eligible, nor are gifts to friends once they have been claimed. And if you've been caught cheating, you forfeit your right to a refund.
Essentially this is a policy to help those who have issues with their computers, or decide after the first hour of game play that its not the right title for them. You can get a refund and have money back in your wallet within a week. Because nothing sucks more then downloading a game, thinking you have the right specs or even better on your PC, and then it doesn't work. Hopefully the new system will help out their customers.