Looking for a Mermaid's Treasure: Book of Pearls review or want to try Mermaid's Treasure: Book of Pearls before playing for real? You're in the right place. Developed by Nucleus Gaming, Mermaid's Treasure: Book of Pearls is a medium low volatility slot with an RTP of 95.38% and a maximum win potential of 2,000x your stake, featuring a mermaid and fantasy theme. With 20 paylines and a 5-reel, 20-payline layout, it delivers engaging gameplay.
Written by James Holloway · Last updated: January 2026
Mermaid's Treasure: Book of Pearls is a slot developed by Nucleus Gaming featuring a mermaid and fantasy theme. The game features a 5-reel, 20-payline layout with an RTP of 95.38% and medium low volatility, delivering solid entertainment value for players of all experience levels.
At 95.38%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-low volatility offers a good balance of regular wins with occasional larger payouts. Expect frequent hits with modest amounts, suitable for casual players who want low-risk entertainment.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Mermaid's Treasure: Book of Pearls features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Mermaid's Treasure: Book of Pearls by Nucleus Gaming is a solid offering that delivers good entertainment value. The 95.38% RTP combined with medium low volatility creates a well-balanced gaming experience.