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Rules and Gameplay

Embark on an underwater expedition with the Aquanauts slot, where exploration meets excitement in a 5×5 grid deep beneath the ocean’s surface. This game introduces players to a unique adventure alongside characters clad in sophisticated diving gear, against the backdrop of the mysterious ocean depths. The gameplay is centered around the innovative Rolling Reels mechanism and a progressive multiplier that resets after each paid spin, enhancing the thrill of the dive. Stake options range from $0.30 to $21, making it accessible for a wide range of players, from novices to seasoned bettors, all playable across various devices.

Bonus Features

The Aquanauts slot is packed with engaging bonus features designed to boost the underwater treasure hunt:

  • Rolling Reels: This feature removes winning symbols, allowing for new symbols to drop and possibly create more wins, accompanied by an increasing win multiplier.
  • Echo Roll Feature: Activates randomly post-win, filling the gaps with matching symbols to ensure guaranteed wins, selected via a sonar screen.
  • Free Spins: Triggered by 3+ scatters, awarding 8 free spins with enhancements like extra spins, multiplier increments, and improved symbol configurations on the Echo meter.
  • Bonus Wheel: A pre-free spins feature that awards additional free spins, win multipliers, and tailored Echo Rolls settings.
  • Upsizer Feature: Provides an option to purchase additional bonus wheel extras, dynamically priced to enhance the free spins round.


In Aquanauts, symbols are intricately designed to align with the deep-sea exploration theme:

  • Marine Animals: Represent the lower-value symbols, adding a touch of ocean life to the reels.
  • Adventure Gear: Submarines and treasure chests, along with four premium aquanaut characters, depict the higher-value symbols.
  • Wild Symbols: Offer the highest payouts and substitute for other symbols to form winning combinations.


The payout structure in Aquanauts is designed to reward players generously, with a maximum win potential of up to 50,000x the stake. The premium symbols offer payouts ranging from 1.5 to 6.67 times the stake for five of a kind, while wilds can pay out 10x for the same combination. The diverse range of symbols and bonus features ensures that the game keeps offering exciting winning opportunities.


Aquanauts offers players 3,125 ways to win, creating a dynamic gaming experience with a high hit frequency. Wins are secured by matching symbols from left to right across any position on adjacent reels, starting from the leftmost reel. This vast number of paylines signifies the game’s potential for frequent wins, making each spin an exciting prospect.

Pros & Cons

Pros Cons
Unique Echo Roll feature adds an innovative twist to gameplay. High volatility may deter players seeking more frequent wins.
Generous maximum win potential up to 50,000x the stake. Varying RTP settings can lead to inconsistent play experiences.
Engaging Rolling Reels mechanism enhances win possibilities. Base game might lack visual and thematic depth for some players.

Minimum and Maximum Bet

The Aquanauts slot game caters to a broad audience with its flexible betting range, starting at a minimum of $0.30. This allows players with varying budgets to dive into this underwater adventure. On the other end, the game accommodates the more daring with a maximum bet limit of $21 per spin. Such a range ensures that both casual players and high rollers can find their comfortable betting levels within the Aquanauts experience.

Game Jackpot

Aquanauts not only promises an immersive underwater journey but also offers the lure of a substantial jackpot. Players can aspire to win up to 50,000 times their stake, a testament to the game’s high volatility. This high variance is balanced with a range of RTP settings, including 96.27%, 94.07%, 92.15%, and 86.90%, providing players with a transparent view of the game’s payout potential over time. Such characteristics make Aquanauts a thrilling pursuit for those chasing significant payouts.

About Provider

Alchemy Gaming stands out in the competitive online slot market with its commitment to innovation and quality. Partnering with industry giant Microgaming, Alchemy Gaming leverages extensive resources to craft games that push the boundaries of traditional slot experiences. Aquanauts exemplifies this ethos, showcasing unique features and engaging mechanics that reflect the developer’s dedication to creating memorable and rewarding games. Alchemy Gaming continues to earn accolades for its creative approach, signaling its ongoing contribution to evolving the online casino landscape.

How To Play

  • Select your bet size by adjusting the bet level, with options ranging from $0.30 to $21 per spin.
  • Initiate a spin by clicking the spin button, setting the reels in motion to reveal potential winning combinations.
  • Aim for matching symbols on adjacent reels, beginning from the leftmost reel, to score wins.
  • Engage with the Rolling Reels feature, where winning symbols vanish to allow new symbols to fall into place, potentially triggering additional wins.
  • Watch for the Echo Roll feature to activate randomly, delivering a set of matching symbols to ensure wins.
  • Collect scatter symbols to unlock the Free Spins round, enhancing your underwater quest with extra spins and special modifiers from the Bonus Wheel.
  • Explore the Upsizer feature to potentially enhance your Free Spins round by purchasing additional bonuses, maximizing your winning opportunities.


Aquanauts by Alchemy Gaming represents a bold step into the depths of innovative slot design, offering players an engaging blend of mechanics and features. With its compelling Echo Roll and Rolling Reels features, the game stands out for delivering dynamic gameplay that keeps players on the edge of their seats. The inclusive betting range and the tantalizing jackpot amplify its appeal, making it a must-try for enthusiasts seeking both adventure and substantial rewards. While the game’s high volatility and adjustable RTP might not suit everyone, Aquanauts remains a testament to Alchemy Gaming’s prowess in creating captivating casino experiences that resonate with a wide audience.