Calipso Demo Slot by ThunderSpin Free Play

Calipso is an online Slot from ThunderSpin.

Quick Facts

- Layout: 5 reels x 3 rows

- Paylines: 21 fixed

- Key mechanics: Stacked Scatters, Pick Bonus, Free Spins with Progressive Multipliers

- Special symbols: Fish Wild, Mermaid Stacked Scatter, Treasure Casket Scatter

How the Game Plays

Calipso transports players to a mythical underwater kingdom ruled by a legendary sea nymph. Though loosely based on Greek mythology, the aesthetic leans heavily into an aquatic fantasy world filled with vibrant corals and sunken ruins. The game is played on a standard 5x3 grid with 21 fixed paylines, where winning combinations are formed by landing matching symbols from left to right. High-value symbols include seahorses, oysters, and mollusks, while the Fish Wild assists in completing wins by substituting for all standard symbols.

Free Spins Explained

The Free Spins feature is triggered by the stacked mermaid scatter. When she appears fully on a reel, the game awards 15 free spins. This round introduces a progressive multiplier mechanic centered around pearl collection. Special scatter symbols appearing during the feature award three additional spins and add pearls to a collection meter. Accumulating these pearls increases the win multiplier, which can reach up to 8x for substantial payout potential.

Sunken Treasure Bonus Explained

Landing three or more treasure casket scatters activates the Sunken Treasure Bonus Game. This interactive pick-em feature takes players to the deck of a sunken galleon, where they must select various underwater artifacts. Each artifact reveals a cash prize or a bet multiplier of up to 5x. The round continues until the player's "air runs out," concluding the feature and awarding the accumulated treasures.

Click the Play for Free button to load the Calipso demo, test its features and payouts and decide if it is a game you enjoy.