On Valve's website sits a profile page, and on that profile page sits an entry for Left 4 Dead writer Chet Faliszek. It reads: "We are all still trying to figure out exactly what it is that Chet does at Valve, but at the very least he occupies office space on the 11th floor as self-proclaimed Mr. Awesome."

Mr. Awesome? Where does that come from?

"So our old HR person wrote that for me, and it was the example of a really bad profile to put up," Mr. Awesome told Eurogamer. "Then she wouldn't let me change it."

"The day of Half-Life: Episode 1," he continued, "that's where it came from. They were handing out recognition for Episode 1. No one knew what to say, so the first three or four people fumbled around. I just went up and I thanked myself for being awesome.

"Then other people who didn't know what to say just thanked me for being awesome."

So, what does Mr. Awesome do, apart from co-write alongside Erik Wolpaw on games such as Half-Life 2: Episode Two, Portal, Team Fortress 2, Left 4 Dead, Left 4 Dead 2 and the upcoming Portal 2?

"That description came after Half-Life: Episode 1. A lot of people didn't understand the part I played in that, with the response rules speech, which is on the fly speech.

"It was semi-accurate at the time. Now people know what I do. I walk around the hall with my iron fist, keeping people in line."

The Mr. Awesome description has been on Valve's website for five years. "I have to re-write it," Mr. Awesome said. "We don't even have an 11th floor anymore. We've moved buildings. But I don't want people to be able to find me."

Faliszek and writing partner Erik Wolpaw have been with Valve for six-and-a-half years. The duo, who grew up together, were hired after bumping into Valve through their website Old Man Murray.

"Out of the blue, in 2004, Gabe [Newell, Valve boss] just emailed us and said, do you want to come work for Valve?" Faliszek revealed.

"Gabe's initial email really was one line. We asked, can you explain more? "No. Just come out."

"I figured, what the hell," Wolpaw added. "We were just like, we'll just give it a shot and see what it's like. Seven years later, it's fine."

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