Jun 28th 2020, 20:38:37
There is no theoretical maximum PM. Your PM keeps growing at a constant rate as long as you are logged out. That rate is acres*3 troops per turn, acres *2.5 jets and turrets per turn, and acres *1 tank per turns.
On the turn after you log in, your PM starts to decay. I'm not sure what that decay rate is, but the bigger your PM, the more the decay. At some point the decay rate equals the growth rate, and your PM will hover around that point if you log in regularly, as the two formulae reach a sort of equilibrium.
On Express you can log out for 24 hours to maximize your PM, and you can try to play all your turns (360 plus) in 4 minutes and buy out the entire PM before it decays. The PM would get even bigger if you logged out for longer than 24 hours, but usually (with anything except a Military Base reseller) you want to play all your turns before buying the PM out if you are destocking, and 24 hours takes you to the maximum turns. On other servers the time to maximum turns is 40 hours, or a bit more on Tournament with its turns every 25 minutes. On Primary 40 hours = 80 turns; Alliance, 40 Hours - 120 turns; Team, 40 hours = 160 turns.
Hope that helps