Eurogamer: It's your first multiplayer centred game - what sort of difficulties have you faced getting this to work? In fact, what difficulties generally have you faced compared to your previous games?

Chris Delay: Actually Defcon is based on the same multiplayer architecture as Darwinia. Although Darwinia is a single-player game its actually running a multiplayer style server-client system behind the scenes, and it was originally intended to be multiplayer only. Someday we might create Multiwinia, but for now we are using the same system to provide multiplayer to Defcon.

Defcon has been a considerably shorter project to build than Darwinia - around six months so far compared to three years with Darwinia. It's a simpler and purer game in almost every sense. After Darwinia I think we all wanted a more controlled game design method.