Approximately 6 hours, not counting the overnight break while I slept and let it just sit there accumulating resources. I made a lot of non-optimal decisions t

Approximately 6 hours, not counting the overnight break while I slept and let it just sit there accumulating resources. I made a lot of non-optimal decisions the first time through, though, seeing as how I had no idea where it was going. That combined with the sleeping time means I have very little idea of the minimum time required to play it straight through.