Great Blue is a 5 reel, 25 Payline online slot game is now also available in a mobile version. The reels hold a grand jackpot of 10,000 coins and offers various special features, such as free spins bonus rounds, stacked wild symbols, and a handy “Gamble” function. All of these features make it just that much easier to walk away from this game with a huge smile on your face.

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Great Blue

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Take a look at our Great Blue slot overview for all the details you need to know about this game. Keep reading and find out more about the very best Playtech online slots. Don't miss out on the hottest slot machines available to play for free or real cash.


Playtech are known for their graphics and modern effects, and “Great Blue” is no exception.

Slot Theme

This slot features an underwater adventure of note, where bubbling fun is around ever rock ‘n reef. Engage with your favourite aquatic friends to reap in the rewards and be on the lookout for pricey pearls that will bring in a small fortune to your wet wallet.

The depths of the big blue sea lie before your 5 reels, with bubbles rising from the depths that could potentially bring with them your rising reward.

Symbols and Soundtrack

The tropical music tune lends heavily to the theme of the game, and sets you steadily on a holiday vibe to enhance your underwater scuba experience.

Friends from the depths that you can hope to meet are: a sea horse, starfish, turtle, striped marine fish, and a great big shark. The greatest sights that you can hope to see however are the black and white Orca (killer whale), that stands as the ‘wild’ symbol in this game, and substitutes for all symbols on the reels except the scatter symbol; and the The scatter/bonus icon of a giant clam, with a pricey pearl in its clutches. This symbol in plural is the trigger for the main free spins feature.

Although the lower paying symbols are are card deck icons( 9, 10, J, Q, K, and A), they too bubble away to bring you wins.

Bonus Features

There are 3 special features found in this game:

Free Spins Bonus Round

This round is activated when you land 3 or more clam and pearl symbols on any reels. Once the round is triggered, you will be transported to a screen that reveals 5 clam shells on the ocean floor. You will get to select 2 of the 5 clams to reveal the amount of free spins you will receive (up to 33 in total), along with the multiplier that your win amounts will be subject to (up to 15X). The spins will be added to the 8 spins awarded to you automatically at the beginning of the round. The feature can most definitely be re-triggered with another 3 scatter symbols, to bring you many salty surprises.

Stacked Wilds

Our friendly Orca can often appear stacked on the reels up to 3 columns high. This will increase your chance of making winning combinations. 

Gamble Feature

By pressing the “Gamble” button after any win, you will be able to take a chance and play a card game of ‘double or nothing’. Here you will be dealt a playing card, face down. You will need to guess whether the card is a red suit or a black suited card. A correct choice will result in you doubling your last win. An incorrect choice will result in you losing your last win. You may carry on with this feature until you lose, or until you decide to collect on your winnings.


For a vibrant game, with a lot of clean, simple fun, “Great Blue” is a great Playtech game to start playing. Animal themed games are very popular amongst gamers and in our opinion this one offers one of the nicest atmospheres out there. With 3 bonus features that hold potentially lucrative payouts, this slot is a sure-fire winner for the beginner or veteran slot player.

Awesome crisp and clear graphics go a long way to enhancing the overall feel of the game, making it a modern animal themed slot worth your time and effort.

Great Blue Game
  • SoftwarePlaytech
  • Reels5
  • Paylines25
  • VarianceHigh
  • Free Spins 33 Free Spins / 15X Multiplier
  • Jackpot 10,000X Total Bet
  • Bet Range$0.25 - $1250
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