I still have a lot of resources left from clearing the Underwater World locations. What do I do with them? December 18, 2020 11:53 Updated After an event finishes, all unused resources are automatically exchanged for coins. Related articles What do I need oxygen for? What is the Underwater World? Is it possible to rotate buildings or put them in the inventory? Where do I find boosters? Are there pets in the game? Comments 0 comments Article is closed for comments.