id unveils Quake Zero

id Software has set up a second development team - and its first project is likely to raise some eyebrows.

That group has begun by working on a web-browser-based version of the developer's popular Quake 3 Arena first-person shooter, Quake Zero, which will be funded by advertising.

"We're eventually going to grow this to the point where we'll have a second team of 20 to 30 people," John Carmack said during his keynote address.

The eventual ambition will be for the team to develop a fuller, id Tech 5-based Quake Arena game.

Carmack admitted Quake Zero was experimental. "It may work, it may not," he told the audience. "[But] I think there's at least the possibility that we could see millions of people play this."