Valve's Writers And The Creative Process on Gamasutra is a conversation with Valve writers Marc Laidlaw and Erik Wolpaw about their work. There are anecdotes about the creation of various moments in their games, as well as a meta conversation about the process: "That's the classic writer's room thing. You just sit around and try and crack each other up, and 80 percent of it is stuff that's so foul that it could never make it in the game. [laughs] But then you're left with that 20 percent that's decent. We all did that when we were sitting in the same room. We'd be like, 'We've got to write all these lines.'"