I can imagine that trying to create a follow up in such a popular series of games can be quite stressful, did you have any specific worries before the game shipped?

Greg: We worried a lot about how to innovate while staying true to the heart of the Age series. Many of the earlier features we tried were pretty different, but frankly a lot of them weren't all that fun either. When we had iterated on an idea for too long and weren't getting anywhere, we usually went back to what worked in our previous games. We knew our iterative design process makes great games, but we knew it could take a long time (and it did).