Play Aquanauts Slot

Aquanauts is a volatile subsea slot from Alchemy Gaming, and it plays out on a 5x5 grid with 3,125 ways to win. The Rolling Reels multiplier increases by +1 per win, and the Echo Roll™ feature can fill the gaps with a random matching symbol at random times for a guaranteed win. The bonus round comes with several wheel spin extras, and you can buy more via the Upsizer feature. The max win is 50,000x your stake, and you can check our full review below the free demo game.

Demo game is not available for the current moment!

User Rating: 9.0/10 (2 votes)

Provider:Alchemy Gaming
RTP 🔗: 94.07% [ i ] RTP Ranges!
Variance: HIGH
Max Win: x50000.00
Betways: 3125
Release: 05.09.2022 [ i ]
SlotRank: N/A
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Aquanauts Review

Last Update: 21.11.2022. Author: SlotCatalog.

The oceans are our last frontier on this planet when you think about it, and who knows what kind of weird creatures, artifacts and riches that awaits discovery in the unknown depths. Aquanauts takes you on a deep-diving adventure to find out, and this Alchemy Gaming release comes with 4 brave characters in different fancy diving outfits. The dark blue backdrop isn’t exactly teeming with life though, but at least it feels like you’re on a very deep dive.

The base game comes with a Rolling Reels progressive multiplier, as well as the innovative and trademarked Echo Roll feature. It provides guaranteed wins at random times to keep your winning streak going, and the pre bonus round wheel provides several interesting upgrades for the feature. You can pay for more via the Upsizer menu, and the advertised max win is a solid 50,000x your stake.

Aquanauts Slot - Reels Screen

Aquanauts Slot Features

The premium character symbols pay between 1.5 and 6.67 x your stake for 5 of a kind wins, and Wild symbols pay 10x your stake for the same. Wilds also step in for pay symbols to help complete wins, like wilds usually do.

Winning symbols are removed via the Rolling Reels mechanic, making room for new and/or existing symbols to drop down to fill the gaps. The win multiplier increases by +1 per rolling win, and it resets between paid spins.

The Echo Roll feature can trigger at random times after any given win, and you will then get a batch of matching symbols to fill the gaps instead of random symbols. The symbol is chosen randomly in the sonar screen to the left, and you’re guaranteed to win with the chosen Echo symbol.

The Bonus Round triggers from 3+ scatters anywhere in view, and this awards 8 free spins. You get +2 free spins on top of that per additional triggering scatter above the minimum of 3. A Bonus Wheel spins up front to award 2 or 4 extra spins, +2 or +3 win multiplier increments, as well as only wilds or premium symbols in the Echo meter.

The Upsizer feature gives you a chance to purchase any extras you didn’t get from the Bonus Wheel spin. The price of these extras is calculated automatically, and you win +1 extra spin per scatter you land in the bonus round.

The 200 Spins Aquanauts Slot Experience

Our 4:12-minute highlights video starts with a rolling wins sequence that lands us a decent payout, as well as triggering the bonus round. We got 8 free spins, +2 multiplier increments and no low paying symbols from the wheel, and you can see for yourself how we fared by hitting the play button below.

Aquanauts Slot - Free Spins

Review Summary

We like that Alchemy Gaming continues to experiment and do their own thing, as many Microgaming partners seem too comfortable within the comfort zone of the “default features” available to them. Aquanauts is not visually stunning perhaps, but the presentation is crisp and snappy. The theme is also somewhat original, and perhaps even more can be done with it in a follow-up release.

We like the Echo Roll modifier as well, and the rolling reels multiplier can lead to pretty solid base game payouts on a lucky day. The bonus wheel seems a bit out of place in a theme like this, but we like the extras it has to offer. It could’ve been presented in a way that matches the subsea explorer theme though, but we have no complaints about the 50,000x potential. Overall, Aquanauts is a pretty solid release that’s well worth checking out.


  • Rolling Reels progressive win multiplier
  • Random Echo Roll feature w/ win guarantee FS w/ bonus wheel extras and Upsizer menu Win up to 50,000x your stake


  • Beware of adjustable RTP ranges
  • I No stats available on the max win

If you appreciate Aquanauts Slot you should also try:

Chronicles of Olympus X UP - is not really a very similar game to the one at hand, but we include it here since this Alchemy Gaming release also comes with the Upsizer feature. You’ll collect X UP tokens to build the bonus round multiplier in the base game, and it can go as high as x50 for payouts up to 50,000x your stake.

Wins of Nautilus Megaways - is an underwater adventure release from Fantasma Games, and the dynamic grid maxes out at 117,649 ways to win. Consecutive avalanche wins turn countdown bombs into multiplier wild reels, and you also get an unlimited progressive multiplier in the bonus round. This can lead to payouts up to 10,000x your stake.

Aquatic Treasures Coast 2 Coast - is a less volatile release from Gold Coin Studios, and the 10 paylines pay both ways. Dolphin Wilds expand on reels 2, 3 and 4, and you can expect them in abundance in the bonus round. The max win is 800x your stake, so this is a subsea alternative for casual punters.

Video and Image gallery

Aquanauts. Aquanauts slot
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Reels Screen. Aquanauts slot
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Win Screen 2. Aquanauts slot
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Big Win. Aquanauts slot
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Free Spins 1. Aquanauts slot
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Aquanauts Slot FAQs

What is the RTP of Aquanauts?

The top-tier Aquanauts RTP of 96.26 % is a bit above average. However, this release comes with adjustable RTP ranges.

How volatile is Aquanauts?

This is a high volatility installment from Alchemy Gaming, and you can expect a bumpy ride.

What is the biggest win possible?

You can win up to 50,000x your stake, but there are no stats on how probable a win like that may be.

How does the Echo Roll™ feature work in Aquanauts?

It triggers at random times when you win, and it fills empty rolling reels positions with a randomly chosen matching symbol type.

Is there a free spins mode in Aquanauts?

Yes, you get at least 8 free spins for starters, and an upfront bonus wheel spin awards possible extra spins, higher win multiplier increments and only wilds or premiums from the Echo Roll feature.

What does the Upsizer™ feature do in Aquanauts?

It allows you to pay for extras you didn’t win organically from the pre bonus round wheel spin.

Can I play Aquanauts Slot for free?

Yes, you can try the free Aquanauts demo game at the very top of this page (UK players must verify age first). Up there, you’ll also find casinos we’ve confirmed to carry this title.

Scanned Countries

US New Jersey

Sorry, Aquanauts is not available for this market. In total, we scanned casinos at 53 in various markets. Aquanauts is available in 42 countries. The markets with the highest number of casinos are: CA, FI, GB, NZ

Country Scanned [i] With Game [i] In Lobby [i] SlotRank [i] Action
Canada CA 610 200 0 3876 See Data
Finland FI 581 182 1 1969 See Data
United Kingdom GB 664 172 2 265 See Data
New Zealand NZ 445 161 1 3858 See Data

Browse All Countries (42)

Aquanauts Attributes

Provider: Alchemy Gaming
Release: 05.09.2022 [ i ]
Wide release date: 2022-09-27
Type: Video Slots
RTP: 94.07% [ i ]
Variance: HIGH
Hit Frequency: 31.12
Max Win: x50000.00
Min bet $, €, £: 0.3
Max bet $, €, £: 21
Layout: 5-5
Betways: 3125
Features: Additional Free Spins, Avalanche / Cascading wins, Bonus wheel, FreeSpins, FreeSpins Multiplier, Gonzo mechanic, Multiplier, RTP range, Scatter symbols, Symbol Swap, Wild
Theme: Water world
Objects: Aqualung
Genre: N/A
Others: Dark blue, Diver, Ocean
Mobile: No
Technology: JS, HTML5
Game Size: N/A MB
Last Update: 21.11.2022

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