You can get promo codes on our official Facebook, Instagram, and YouTube pages:
Once activated, promo codes give you prizes: energy, resources, tools, boosters, etc. To activate a promo code, open the first promo code link in a post. It will lead you straight to the game, where you can receive your prize. If the first link doesn't work, there is another one below it. Open the second link and type your ID in the special menu to get the same gifts.