Speaking to Videogamer.com at GC, Valve boss Gabe Newell confirmed that zombie shooter Left 4 Dead is to get a demo, which will feature co-op as well as single-player content.
"We will be releasing demos for both the Xbox and for the PC," he said. "I don't know what the date is for release on that, though.
"I think it's going to contain the first part of one of the campaigns. I think it'll probably be Hospital but I'm not sure. That's a decision that Doug Lombardi is making."
More through the link. Game's out in November.