Crispy Gamer has a very in-depth interview with Gas Powered Games, Mike Marr. He is the Lead Designer of Demigod and this interview covers most of the bases.
“You've heard a lot from Brad Wardell and Chris Taylor about Demigod. They're the outspoken and very public faces of Demigod's developer and publisher, respectively. But if you want to get down to the nitty-gritty design issues, the guy you want to talk to is lead designer Mike Marr. Which is just what I did.”
Link: Crispygamer.com