There’s no need to be furious if you already bought The Orange Box; Portal: First Slice is nothing more than an extended demo for one of last year’s greatest games and a big “f*** you” to ATI supporters.
If you haven’t gotten Portal for PC yet and you’re running NVIDIA hardware, then why not take Valve up on this offer? There’s nothing to lose other than some space on your hard drive (you’ll need Steam to play the demo).
“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.”
Details are pretty scarce on the actual length of the demo, so if you get around to downloading it, give us a holler in the comments.