Play the Emerald King video slot for free in online casino. Try Emerald King and treasure will be at the end of the rainbow. This 3×5 Irish-themed online slot with 20 paylines comes packed with a win multiplier that can increase randomly on any non-winning spin, and with a Mini Slot feature that can bring 2×2 or 3×3 slot machines on the screen. The game starts with a x1 multiplier that applies to the total win of the spin. The multiplier can increase by 1 randomly, on every spin that does not bring a win. During the Mini Slot Feature, the mini slot machines that can appear randomly on the screen hold only Lucky 7 Symbols of different colors.