Soren Johnson is best known for his work at Firaxis, where he's been deeply involved in the Civilization series since its third incarnation. He was Project Lead on the definitive Civ IV, while still coding all the game's artificial intelligence. Now he's moved to Maxis to join Will Wright working on the cutting edge of PC games design. And he's knows a lot about post-punk records. PC Gamer had a chat with him.