Rubies are one of the two in-game currencies. Every district of Tasty Hills accepts rubies.
 
How do you get rubies?
You can get rubies in several ways:
  • as a reward for completing an episode. Collect plot stars to complete episodes
  • as a reward for first place in any restaurant's ranking
  • as a reward for completing guild quests. Join a guild and complete quests to get not only rubies, but other prizes as well
  • as a reward for unlocking achievements
  • as a reward for logging into the game every day
  • as a reward for increasing a restaurant's prestige by buying and upgrading kitchen appliances, interior items, and decor
  • as a reward for visiting friends' restaurants
  • as a reward for spinning the Wheel of Fortune
  • as a one-time reward for connecting your Facebook account
  • at the Bank. You can always purchase rubies from the Bank!
 
What are rubies good for?
Rubies allow you to:
  • upgrade your restaurants' kitchens
  • purchase interior items for restaurants