3 little tips for you about the 8M upgrades, don't collect from your mines for a good few hours before the upgrade is started, save loot in your cc, use revenge to get some gold straight after the upgrade is started (revenge costs no gold)
8 million is still very steep, but hey this is the highest Th in the game, its not going to be easy is it.



You will not have sleeping builders before a long time I swear.


