with vv 1 2 and 3 and plant and fish tycoon, i would always pause it b4 i shut it off, but i didnt advance that far lol. i want to know how much food they need to last them 8 to 10 hours? i dont want to open it tomorrow to find all of them dead! which is y i always paused the others, but like i said, it took FOREVER to get research and everything done! thanks to any and all who respond, this game is AWESOME!