Play Heart of Earth Slot by Swintt for Free

Heart of Earth by Swintt is a 5x3, five-line underground-expedition slot where wild and scatter share one symbol. Three or more landing anywhere open free spins, and a Lucky Symbol is randomly chosen before they start. That symbol expands to fill entire reels during the bonus and scores on every active line regardless of adjacency, a classic book-style mechanic. Retriggers add ten more spins and a second Lucky Symbol. A post-win risk feature can double or quadruple wins up to nine times. Max win 10,000x.