⛏️ What are ingots and stones used for?

🏅 Ingots are used for decorations and special upgrades.
💎 Stones and minerals are needed for construction and certain tasks.

🏗️ How to unlock the Mine, Airport, and other locked buildings?

Some buildings are in the town from the start of the game, but they’re not accessible at first.
To restore them, you need to reach a certain level.

Once repaired, these buildings provide new opportunities and resources. For example :

⛏️ The Mine unlocks at level 21, where you can extract ore for ingots and find other treasures.

✈️ The Airport can be restored at level 17.
Sending orders through the Airport gives rare resources needed for boosters in the Laboratory.