Watch Dogs developer Ubisoft has teamed up with Nvidia to offer free a PC copy of the game to anyone who upgrades their graphics card.

10 recent models are included in the deal, including the Nvidia GeForce GTX Titan, 780 Ti, 780, 770, 760, 690, 680, 670, 660 Ti and 660. Participating retailers include Dabs, Novatech, ebuyer.com, Overclockers, and SCAN.

It's not the first we've heard of Ubisoft working with Nvidia on the game - the two teamed up to present Watch Dogs' recent PC trailer.

The two companies also worked together to get Nvidia's HBAO Plus (Horizon Based Ambient Occlusion) shadows technology and TXAA anti-aliasing working for the PC build.

"The playground Ubisoft Montreal has crafted is certainly impressive," Eurogamer's devilishly-handsome Tom Phillips wrote in our recent Watch Dogs preview. "And yet you could still question whether all of this work has gone into the right areas."

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But is it worth upgrading for? Take a look at our recent Watch Dogs preview.