Good points
Quovatis and
LordJestix, but I believe I am closer to 50% on time as I have completed many of the boxes I have started on..
But yes time adds up fast for higher levels... Just started AT HP and DMG. The first 5 levels of both is a total of 42 days, the last 5 levels of both is 80 days..
But this is all good, I have done all the research I felt important and the rest is just icing on the cake that I do in stead of upgrading my economic buildings (all def buildings except Silo and 1 bunker is max). I am waiting with the silo bc I believe it will be seriously nerfed very soon. If not something else will die - my interest for the game....