It’s time to discover what lies under the sea with Aquanauts by Alchemy Gaming. In this ocean-themed adventure, you’re invited to take the plunge and join our intrepid explorers on the hunt for a payout of 50,000x. Our Aquanauts slot review will provide you with a deep dive on the gameplay, features, payouts and more.

Rating: 77% | Made By Alchemy Gaming | Reviewed On

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An Introduction to Aquanauts

With its 5×5 grid and 3,125 paylines, Aquanauts is a deep sea adventure packed with interesting features. You will encounter sea creatures, submarines and treasure chests on your quest, along with our four divers. 

You can play Aquanauts free of risk in demo mode, to learn the game’s features and rules. But enjoying this title at real money casinos offers a potential maximum win of 50,000x!

Aquanauts slot layout
Aquanauts slot layout

This exciting deep sea adventure offers a maximum payout of up to 50,000x your bet. Enjoy our Aquanauts slot review to discover how to spin and win!

Betting and Layout

Created by Alchemy Gaming exclusively for Games Global, Aquanauts offers a fun and potentially rewarding slot experience. You’ll find a 5×5 grid with 3,125 ways to win. As you spin, you’ll meet our team of underwater divers. In addition, you will encounter four sea creatures, a submarine and a treasure chest.

The male explorer in a yellow diving suit is the highest-paying symbol. In addition, the Wild symbol substitutes for others to potentially create huge wins. Watch out for the red pearl Scatter too, as this triggers the game’s Free Spins Bonus, which we’ll explain in detail below.

The Aquanauts volatility is high, while the game offers a slightly above average RTP of 96.26%. Bets for this slot range from 0.30 to 21.00 credits, with fixed paylines. The slot’s maximum payout is a gigantic 50,000x the bet.

To the left-hand side of the screen, you’ll find the Echo Roll, which adds a dash of visual spectacle while triggering guaranteed payouts.

Key Information

Developer Alchemy Gaming
RTP 96.26%
No. Reels 5
No. Rows 5
Volatility Very High
Min. Wager 0.30
Max. Wager 21.00
Max. Payout 50,000x
Our Verdict 77%

Gameplay and Features

Expect exciting times on the reels of Aquanauts, thanks to the creative Rolling Reels mechanic from casino software developer Alchemy Gaming. 

Think of this feature as the familiar Cluster Pays mechanic, where all winning symbols are removed from the reels. The remaining symbols drop down to create more winning combos. New symbols are then added to the reels and the mechanic is re-triggered whenever you hit another winning combination. This feature only ends once the wins stop. 

Multiplier Trail

In addition, Aquanauts offers the Multiplier Trail, which boasts a range of random Multipliers. Your Multiplier increases by one for every winning combination and Rolling Reel.

If you land at least three Scatters during the base game, you’ll trigger the Free Spins bonus and pick up eight free spins. Collecting another three-of-a-kind combination for Scatters adds two bonus spins to your count.

Echo Roll

Also, watch out for the Echo Roll which lies in the top-left section of your screen. It triggers during the base game and Free Spins Bonus, adding a random symbol after a preceding win. This feature doesn’t add Scatters, but the extra symbols add up to a guaranteed win.

Aquanauts massive win
Aquanauts massive win

Regular Symbols

On the grid of reels, you’ll meet our four Explorers in their diving suits, which serve as the game’s regular-paying symbols. The diver in the yellow suit is the most important as it pays up to 6.67x your bet.

This online slot features several other ocean-inspired icons too, including a Jellyfish, Octopus, Treasure Chest and a Submarine. These constitute the game’s lower-paying symbols, with payouts ranging between 0.67x and 0.93x the bet for five. 

It’s refreshing to note that there are no standard playing card symbols, as seen in almost all video slots online.

Scatter Symbols

A Red Pearl acts as the game’s Scatter and it can appear anywhere on the grid. Although Scatters don’t offer payouts, these symbols trigger two exciting features of the game: Free Spins and Rolling Reels. 

Before the free spins game kicks off, there are two pre-game activities: a Bonus Wheel and the Upsizer:

  • Bonus Wheel. Spin the wheel to win extra prizes. These include free games, multiplier increments, Wilds on Echo Rolls or the removal of low paying symbols during Echo Rolls.
  • Upsizer. This is a kind of Bonus Buy feature, where you can purchase the modifiers found on the Bonus Wheel. The additional cost to do so is automatically calculated by the system. 

When the free spins game is underway, an extra Scatter landing on the reels awards an additional bonus spin.

Aquanauts free spins
Aquanauts free spins

Wild Symbols

The game’s Wild is represented by a yellow “W” icon. This symbol may appear anywhere on the reels and can replace any other symbol aside from the Scatter. Find five Wilds and you’ll bank 10x your bet!

Aquanauts Free Spins

Like most video slots, the key to Aquanaut’s Free Spins Bonus is the Scatters. You must land at least three to trigger the bonus and collect eight free spins. In addition, you earn two more for every Scatter you land on the screen. 

As previously mentioned, there are two mini-games you can play before this round. The Bonus Wheel is perhaps the most exciting, as it offers you a chance to earn additional free games. In addition, the Aquanauts Free Spins Bonus also features a Win Multiplier that increases randomly, by one, two or three after each win. 

How to Win at Aquanauts

In Aquanauts, you earn a win by matching at least three of the same symbols. Naturally bigger payouts are yours if you find more of the higher-paying symbols. But the real key is to trigger the Free Spins Bonus, which allows you to earn additional plays. 

As we mentioned elsewhere in this Aquanauts review, the Free Spins Bonus offers two additional mini-games. These give you a chance to get additional free games or Multiplier increments. But if you didn’t get lucky with the Bonus Wheel, you can always use the Upsizer to buy additional modifiers.

We recommend playing the Aquanauts demo game before graduating to real money play. Try the regulated casinos reviewed on this page, for a safe and secure environment at which to learn the rules in free play mode.

Aquanauts paytable
Aquanauts paytable

Payout Structure for Aquanauts

There are 12 symbols on the reels, including the Wild and Scatter. Our divers in coloured suits are the regular-paying icons, with the diver in yellow suit offering the best payout of up to 6.67x. 

For the lower paying symbols, the max payout is up to 0.86x your bet. However, the best rewards of all come from the Wilds. With five-of-a-kind, you can win 10x the stake!


Designed by Alchemy Gaming for Games Global, Aquanauts scores more hits than misses. We have the traditional Wilds, Scatters, and Free Spins features found in most video slots. But there are interesting mini games to be found as well. Here, you can collect additional plays and multipliers to potentially increase your wins.

The Aquanauts RTP rate varies by casino. So keep your eyes peeled for the maximum value of 96.26%, as this is a little above the industry average for slots. Coupled with a maximum payout of 50,000x the bet, your exploration of the deep, dark ocean could be extremely rewarding.


Does Aquanauts have a free spins feature?

Yes, players can trigger a Free Spins Bonus by landing at least three Scatters anywhere on the reels.

What is the Aquanauts volatility?

This Alchemy Gaming slot has a very high volatility rating. You may need to wait patiently for the bigger wins.

What is the max win of Aquanauts?

The game’s maximum win is a potential 50,000x your bet.

Can I play Aquanauts for free?

Yes, the Aquanauts demo is available to play for free at many online casinos. On this page, you’ll find our highly recommended sites which offer freeplay. This allows you to test the game first without risking your bankroll.

Who makes the Aquanauts slot game?

Aquanauts is a premium slot production from Alchemy Gaming for Games Global.

Can I play Aquanauts on my mobile or tablet?

Like most modern online slots, this release is playable across Windows, iOS and Android devices. This includes smartphones and tablets.

Which online casinos have Aquanauts?

Use the list of Aquanauts casinos to see all online casinos that have Aquanauts. We filter the casino top list to only show Aquanauts casinos that accept players from your location.

What is the Return to Player (RTP) for Aquanauts?

The Aquanauts RTP is 96.26%. An RTP of 96.26% puts Aquanauts among slots with an average Return to Players. To be a high RTP slot it would have to be 98% or more.