by Alchemy Gaming

Ever wondered what would happen if space exploration of the 1960s was targeted in the ocean instead? Aquanauts is an alternative reality that explores deep under the ocean with the prestigious Aquanauts.

Developed by Alchemy Gaming and published through Microgaming's platform, Aquanauts plays on 5-reels with 3,125 ways to win. Like most modern games, this slot contains free spins, multipliers and a bonus wheel as well as the unique Upsizer feature to upgrade bonuses. Lucky adventures can even uncover wins of 50,000x the stake.

Slot information

RTP: 96.26%
Volatility: High
Max Payout: 50,000x stake
Reels: 5
Paylines: 3,125
Jackpot: No
Min Bet: 0.30
Max Bet: 21.00
Themes: Adventure, Retro
Release Date: 27th Sep 2022

Our rating

“ Sign us up to join the Aquanauts any day! ”

4.2 out of 5

Win potential

Play Aquanauts

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Aquanauts Screenshots

Aquanauts Features

Similar to most other online slots, Aquanauts contains a feature called Rolling Reels which essentially acts like cascading reels or avalanches. When winning symbols are made, they are rolled out to make way for new ones.

The new symbols drop in but also award a multiplier starting at x1. Each new 'Rolling Reel' awards a multiplier that resets after each roll. However, during the free spins round, the multiplier does not reset in between spins.

After any win, echo roll can randomly award another guaranteed win. The winning positions are filled with a high, low or wild symbol. In the free spins round, this feature can be modified to only award wilds.

When a player lands 3 or more scatters, the free spins round is triggered awarding 8 free spins. Each additional scatter after 3 awards 2 extra spins. Players will spin the wheel before the free spins round to determine modifiers such as additional spins, multipliers or wilds symbols only.

This slot does not have a typical bonus buy feature but instead has something called Upsizer. This gives players the chance to purchase certain perks and bonuses for the free spins round. However, like most bonus buys, this is not available in the UK.

Aquanauts - Rolling Reels

Rolling Reels

Just like cascading reels or avalanches, whenever a win is made in Aquanauts, the winning symbols disappear and new ones roll into the spots. However, this also leads to a progressive multiplier that increases with each Rolling Reel.

Aquanauts - Free Spins

Free Spins

When 3 or more scatters land on the reels, 8 free spins will be handed out. There is a bonus wheel to spin before the feature to decide on modifiers such as extra spins, multipliers or added wilds to the reels.

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Aquanauts Review

It's time to journey to an alternative universe where space exploration did not happen and instead countries raced to uncover the mysteries of the ocean. Published by Microgaming and developed by Alchemy Gaming, Aquanauts is an adventure slot that takes players on an expedition throughout the ocean searching for the unknown and valuable.

In this reality, there is no such thing as astronauts, instead, the explorers of the ocean are called Aquanauts. This game plays on 5-reels with 3,125 paylines and contains Rolling Reels, multipliers, free spins, a bonus wheel and an Upsizer feature. All of these can build up the experience to deliver wins of 50,000x the stake.


There is certainly a retro feel to this slot as the design is very much inspired by the 1960s. The designs of the characters look like they are from 1960s cartoons or advertisements as the animation style looks like it's from another time period. That's not to say that it's outdated but just delivers exactly what the slot wants.

It's clear that with the designs of everything, the developers wanted to go for a B-movie film look from the 1960s and delivers this well. The colours and the style fit in perfectly with this - but some players may find it an eyesore to look at as it's not for everyone.

The music throughout the slot is quite mysterious and magical with soft sounds paired with deep piano noises. It evokes a sense of intrigue and suspense which is what the slot is going for.


Aside from the Upsizer feature, there is nothing overly complicated or unique about this slot. That's not to say that the gameplay is not fantastic but do not expect anything refreshing or new. The Upsizer feature upgrades the free spins round but at a cost. However, this is essentially a bonus buy and is not available in the UK.

Anything the player will need can be found on the right side of the screen with the spin button and the bet level button. Next to the spin button, there is a section highlighting the current multiplier which is good to know.

Win Potential

Aquanauts boasts of an impressive win potential and we can't help but agree. The RTP is above average with 96.26% which is over the average and there is a high volatility level to deliver larger wins but these will be less frequent.

This game also advertises a maximum win of 50,000x the stake which is a crazy high amount for an online slot. Whilst this amount will be difficult to achieve, there is still the potential to get wins this high through the multipliers. Other big wins can also occur during the free spins round as well.

Our Verdict

We were certainly not expecting Aquanauts to be anything good but were pleasantly surprised by what we were given. Not only is the gameplay delightful, but the features and the overall aesthetic is incredible.

This game is nothing new or innovative, but Alchemy Gaming manages to make it feel refreshing at times and we just couldn't get enough of the game. Fans of retro slots or slots with incredible win potentials, look no further than Aquanauts.

Charlie Vogelsang
Reviewed by Charlie Vogelsang Last updated on

As the Content Manager at Slot Gods, Charlie is focused on staying on top of the latest slot releases as well as finding the most recent trends. She spends her day searching for the best slots to be reviewed as well as managing most of the content that you will find on the site. Whether it’s the latest slot review from Relax Gaming or a guide on a brand-new mechanic, Charlie will be sure to have it covered on Slot Gods.

Learn more about Charlie here

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