Everygame Casino has just added the new Masks of Atlantis slot from Spin Logic to its huge collection of online casino games. Masks of Atlantis takes players to the ruins of the ancient underwater civilization of Atlantis. There they find the treasures of a lost world, including exquisite gold masks. Until June 15th, the casino is offering a 150% introductory deposit bonus that includes 50 free spins on the new game. Watch video version of this story with preview of new game..