The Crystals Mine is a valuable building in the game, where you can gather essential resources for various tasks and upgrades.

To unlock the Crystals Mine, your player level should be at least 48.

In addition, you need to explore and open specific areas in the Harsh Rocks location. These areas include Autumn Glade (1) and Openwoods (2). Once both zones are unlocked, the option to rebuild the mine (3) will become available to you.

Don’t forget to prepare your tools and energy – restoring the Crystals Mine is a big step forward in your adventure!