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Great Blue

Great Blue

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Playtech takes you beneath the waves with Great Blue slot, on a deep-sea adventure that will have you making some fishy friends on each spin. Stacked Wilds and Free Spins with Multipliers will offer you wins of up to 10,000x bet over 25 adjustable paylines.

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Great Blue Review

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Slot Overview

slot machine icon Name

Great Blue

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customer icon Provider


platform icon Platform

Desktop, Tablet, Mobile

Slot Details

RTP icon RTP


Volatility icon Volatility


Jackpot icon Jackpot

10,000x bet

paylines icon Paylines


Reels icon Reels


Rows icon Rows


Min. bet icon Min. bet


Max. bet icon Max. bet



Game Rating


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Sound Effects

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Loading Time

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Game Features

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Big Win Potential

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Mobile Gaming

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The Overall Rating of this casino game was calculated based on our research and data collected by our casino games review team. Learn more about Our Review Process

Game Review

Great Blue Slot

Deep-sea diving is a wonderful way to escape the world above and explore unfamiliar territories. While Great Blue is only a slot game, it still offers you the opportunity to explore.

Exploring these reels could turn up giant wins that offer you up to 10,000x your line stake. The free spins may even increase that tally, as it’s possible to land win multipliers in that feature which will offer 15x the normal win amount.

Playtech is in the business of offering first-class casino game magic, so don’t expect anything less from this title.

Theme, Soundtrack and Symbols

Though a few years old now, this 2013 slot title still compares with many of the big game maker titles around today, though not sporting the most prestigious looking 3D artwork out there.

Blue is the colour, and as you spin the reels, you may get lost in a flurry of bubbles and swim byes.

The gameplay is silent between spins but hit that Big Pink button and the game comes to life. The effects provide a tropical island feel, even though they show a hint of being on the generic side.

The game symbols are bright and stand out against the deep blue background. The cast of characters holding the line of higher-paying icons, include a Shark, Sea Turtle, Sea Horse, Star Fish, and a Striped Reef Fish. All lower paying symbols are underwater air bubbles formed in various card deck icon shapes (9, 10, J, Q, K, and A); a very innovative idea, we must say.

The game scatter is a clam and a pearl. This icon is key to triggering the main feature. The game Wild is a friendly-looking Orca, the true king of the seas. This symbol substitutes for all other standard symbols to help complete wins. By landing stacked on the reels at times, the Whale often lends a hand to multiple wins at a time. Should you line up 5 Orcas over a single payline, you will win a jackpot of 10,000x your line stake.

Game Mechanics

Great Blue is played on 5 reels with 3 rows of symbols per reel. You can play up to 25 paylines at a time with wagers starting from €0.01 to €125 (€50 at some casinos). Wins are multiplied against your line wager at the time of the win.

For players wanting to be less involved in every spin, you can opt to make use of the ‘AutoPlay’ feature, which affords you the option of programming the machine to spin between 10 and 99 spins for you automatically. For players in a rush, you can activate turbo mode. This mode speeds up the reel spins and wins calculations.

Special Features

This Playtech game title offers two bonus features to complement the gameplay:

Free Spin Bonus Round

Should you manage to land three or more scatter symbols on any one spin, you will be rewarded with 8 free spins with a 2x multiplier on the wins. But this is only the start.

Before the spins start, you will be afforded the opportunity of picking 2 out of 5 available clams on the screen, to win extra free spins and/or multipliers. There is a potential of 33 free spins up for grabs with up to a 15x multiplier on each spin.

The feature can be re-triggered an infinite amount of times. When it is re-triggered, you will be granted an extra 15 free games with the same multiplier in place that you re-triggered the feature with.

Gamble Feature

This feature is available in both the base game and free spins. After any win, you can opt to gamble the win in a 50/50 double or nothing game.

The game entails choosing the correct colour (red or black) of the next card to be dealt on the screen. A correct guess will double your win. Here you can opt to gamble the new amount or collect on the win. Should you at any time guess wrong, you will lose the entire win and any successful gamble feature wins, as well.

Play ‘On The Go’

Great Blue is available to play overall platforms. The mobile version can be played straight from your mobile browser on your Android or iOS device, thanks to the involvement of HTML5 technology.

The graphics, sounds, paytable, feature options, and tools all remain true to the desktop version of the game. If you have played the game on PC, you may have to take a few seconds to familiarise yourself with the controls, as they are different on the smaller screen, in order to save space and so that you may operate more seamlessly with your finger touch controls.

CasinoWow Game Verdict

Great Blue from Playtech may be a slightly older slot game, but it still holds its allure. It offers great winning potential and a proper free spin round which offers high multiplier options.

Be aware of the high variance of the game. Though big wins seem like they take an age to come around, when the volatile swing turns in your favour, you are sure to reap the benefits.

Anything incorrect or missing?

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Game Review by Niki

CasinoWow Contributor

Hey, there! It’s Niki! My power is in playing online casino games and knowing what’s best in each. I help in the creation of the most reliable casino guides to support players and get them well-prepared for their gambling time online. I am dedicated to helping my Wow Team stay on top of the game as being the SEO guru of CasinoWow!

Great Blue FAQs

How much is the jackpot on Great Blue?

5 Orcas on a payline offer a 10,000x jackpot prize.

What other games can you recommend along the same lines?

Other great ‘under the sea’ theme titles include NetEnt’s Secrets of Atlantis, Yggdrasil’s Golden Fish Tank, Play n Go’s Mermaid Diamonds, and Microgaming’s Fish Party.

Can I play this game in my country at an online casino?

All online casinos have restrictions on games and countries. Be sure to check with the casino directly if you are allowed to play before you register.

Does the game have a free spin feature?

Yes, Great Blue has a free spin feature that offers the potential of win multipliers of up to 15x.

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Great Blue

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