User blog comment:Teams820/Tiny Village game ideas/@comment-4763021-20120502052505/@comment-4763021-20120502053003

You can build up to 5 factories.

N1 lv 5 cost 25000 coins time 36 hours

N2 lv 15 cost 45000 coins time 48 hours

N3 lv 25 cost 85000 coins time 60 hours

N4 lv 35 cost 165000 coins time 72 hours

N5 lv 45 cost 325000 coins time 84 hours