Valve Software and NVIDIA have announced an agreement to collaborate on development, distribution, events, and more. Effective immediately, NVIDIA card owners can download an extended demo of Portal.

To make it easy for all NVIDIA customers to redeem this offer, a link to the Steam offer will also be included in all NVIDIA drivers.
 
"More Steam gamers, including myself, play on NVIDIA hardware than any other GPU," said Doug Lombardi, vice president of marketing at Valve. "That's a testament to the company's long history of innovation and quality. By working together with NVIDIA to expand our development, distribution, and marketing efforts, we're increasing our ability to serve the millions of NVIDIA customers logging onto Steam and help us prepare for our next generation of content."
 
Throughout the coming year, the companies will also be working together to support competitive gaming events for Counter-Strike® and Team Fortress® 2 and will continue to work together to define and support the breakthrough features of tomorrow's games and graphics hardware.
 
"Valve's endorsement of our technology and tools is yet another example of how the world's leading gaming companies are working with NVIDIA," said Roy Taylor, vice president of content relations at NVIDIA. "Portal is the hottest new, award-winning title from Valve, and we're delighted that Valve will offer First Slice exclusively to GeForce customers."
 
Portal: First Slice is now available to all NVIDIA customers. For more information about the offer or to take the test, please visit www.steamgames.com/nvidia1
 
For more information about NVIDIA, please visit www.nvidia.com.