Energy Button in menu
When a power plant is destroyed, defensive structures cease their work and become unnecessary (AGT/Obelisk).
I propose a solution.
After the destruction of the power station, the player will be available a button, which for a certain time will restore:
Economy. Prices will fall by half.
Defensive buildings begin to work again.
The button will be active for all players, after (for example) two minutes, after the explosion of Power Plant.
Time: 20-30 seconds.
After using the first cooldown, 5 minutes. The next cooldown is 6 (7) minutes. The next 7 (8), etc.
P.S.: Sorry for my French, if you understand the main idea - correct me.