NVIDIA has teamed up with Batman Arkham Asylum publisher Eidos to give away a copy of the PC version of the Dark Knight's action adventure to anyone who buys a qualifying NVIDIA GeForce Graphics Card.

For a limited time only, consumers can buy either a GeForce GTX 260, GeForce GTX 275 or GeForce GTX 285 and will receive a code allowing them to download the PC version.

The coupon can be redeemed between Sept 15, 2009 through December 31, 2009.

For full terms and conditions click here.