Rubies are the most valuable resource in the game. They can be used to make additional in-game purchases. Rubies can be obtained:
- as a daily gift;
- for completing special events;
- for completing stages in season events;
- lifting a curse from and completing a building in a town;
- for synchronizing the game with your Facebook account;
- for coming back to the game after a long absence;
- by buying packs in the game bank and in-game offers.