Left 4 Dead 2 has gone gold and will be in stores and available via Steam from November 20, but beyond supporting that title, what lies ahead for Valve? More Left 4 Dead? A Portal sequel? What of Half-Life 2: Episode 3?

We recently caught up with Valve writer Chet Faliszek and quizzed him on all the above.

"There are quite a few teams at Valve. There are people working on other stuff as we speak now, that were working on it during Left 4 Dead," said Faliszek when asked if the studio had a desire to work on other projects besides Left 4 Dead. "I think there are about 150 to 200 developers. The team of Left 4 Dead is about 60. So there are a lot of things still going on."

Responding directly to a question regarding the status on Half-Life 2: Episode 3, he said: "We hate to ever talk about anything until we're close to releasing it, just because, who knows what will happen?"

What about a Portal sequel, perhaps as a self-contained experience? Faliszek wasn't going to budge.

"We'll see! I don't know! We'll see!" he replied.

Left 4 Dead 2 will be released for PC and Xbox 360.

For more from Chet Faliszek check out the interview in full right here.