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Great Blue Slot is currently available only in free play mode in your country.
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Great Blue Slot Playtech

Great Blue is an aquatic video slot powered by Playtech software provider. This slot has 5 reels and 25 paylines and it focuses on the life under the ocean waves. The name of the slot is drawn on the great blue whale. The bubbly crysta­¬l­-c¬le­a¬r sounds and splashing animations of the game are even reminiscent of some of the finest land-based video slots. Dive deep underwater at any Playtech Casino and spin these reels for real or you can swim with the creatures just for fun by loading the game here on our page.

How to Play Great Blue Slot

As far as online video slots go, Great Blue is simple to play and understand.

  • You can set your bets as you see fit by clicking on Click to Change Coin, Lines and Bet per Line buttons.
  • Spin will get the reels in motion once you choose your betting range.
  • Autostart is essentially the autoplay option and it will spin the reels for a chosen number of times without any interruptions.
  • If you click on Bet Max the bets will get set to the highest possible and the reels will spin automatically at that bet.
  • If you hit the Gamble button after a win, it will trigger the gambling feature.

Slot Features

This slot doesn’t have many features but it does have the essential ones, the Wild and Scatter and one bonus feature.

Great Blue Whale is the Wild symbol in the game and it can substitute for all the symbols in the game except for the Scatter. In addition, all wins where the Wild substitutes will be subjected to x2 multiplier.

Free Games Bonus

Pink Oyster Shell is the Scatter in the game which can form scatter wins. Once you land 3 or more of them anywhere on the reels you will automatically trigger the free spins feature and will be awarded with 8 spins and x2 multiplier. 

At the beginning of the feature you will get to choose 2 out of 5 shells that can award you with additional spins and/or multipliers. You can win up to 33 spins and up to x15 multiplier. Additional 3 Scatters during the feature will retrigger it and award extra spins at a multiplier the same as the triggering spin.


Players who are feeling extremely lucky can even try out Great Blue's gamble feature after a win in the base game. Guess the color of the card next to be drawn and win double your bet! You can collect the wins at any point which will return you back to the base game. Be careful, though. Using the gamble feature too much can eat away at your bankroll in a heartbeat. On the other hand, you can double up your wins till you reach the $1000 limit.


When everything is taken under the consideration, the Great Blue slot is nice looking slot with some neat graphics and sound effects. However, should you decide to hit the reels on this one, thread carefully because this is high variance slot. You can win big but it might cost you money and nerves till you get there.

Play game
Software Playtech
Slot Type Video slots
RTP 96.03%
Special feature Wild Scatter Free Spins
Slot details
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  • Paylines

  • Reels

  • Min Coins Per Line

  • Max Coins Per Line

  • Min Coins Size

  • Max Coins Size

  • Jackpot

  • RTP

  • Bonus Game

  • Progressive

  • Wild Symbol

  • Scatter Symbol

  • Autoplay Option

  • Multiplier

  • Free Spins

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Great Blue Slot Reviews by Players


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kayenne23 122 reviews
Reviewed on October 20, 2020


Great Blue is another old time classic slot, by Playtech. The slot has relaxing layout with blue colour filling up the game. The theme the game has, is about the underwater world. The game has indeed very interesting gameplay and funny bonus sytem. Lets start with the bet. The minimum bet is 0.25 cents, which is a very good bet for players who like to play on minimum bets or just play with low bets. Also the maximum win a player can get in this slot, is capped to 10000x which is great and possible to be achieved if you ask me. Also, another interesting thing about Great Blue Slot is the background music. Its relaxing. From personal experience, I do like slots with soft music background. In the basegame there are not a lot of things to do or see. The aim is to trigger the bonus. Except that, you may get some good wins since the wilds tempt to be stacked. When it comes to the bonus, in order to trigger it you need to bring 3 scatters. Then you will be given 2 picks, in order to choose the free spins amount and the multiplier. Also in the bonus game, you can also retrigger the bonus, which gives you additional 10 free spins. From personal experience, i had quite a few good wins in this game. Its a great game to play with minimum bet or higher. I play it from time to time, hoping to see the stacked wilds coming in the reels with the 10x multiplier. Very nice slot.


The only bad experience I had with Great Blue was the high difficulty of triggering the bonus. Also, since Great Blue is released couple years ago, the graphics it has, look like outdated or very old to say at least.
qiffei 7 reviews
Kuala Lumpur
Reviewed on November 20, 2016


So hard to win now ?
Even bonuses hard to get?
Sometime even smaller bet can win big.
Better try 10 to 50 spin first.


Slow loading, late bonuses, small bonus win, scatter hard to get rarely come
zerooo 742 reviews
Reviewed on November 29, 2015


Great Blue is nice underwater designed video slot from Playtech software. It has 5 reels and 25 paylines. I played it for a few times, at different casinos, different sessions. I don't have any good results at it, I had no big win on it. But I still like to play it, because the potential on big winnings are huge.

This game has good theme and I like to play underwater themed games. In some way it relax me and I think there under the sea could be some treasure too. The game has only one bonus and that is free spins. You can win up to 33 free spins or up to x15 multiplier. When three or more scatter bonus symbols appear you get automatically 8 free spins with x2 multiplier. Later you have to choose two out of five sea shells to win more free spins or multipliers. I like that free spins could also be retriggered with 15 free spins played with the same multiplier as the triggering spin.

So this is really huge potential on winnings. I played it many times, I received free spins only a few times. And after I selected shells, I received more than 20 free spins and around x4 or x5 multiplier. But the payouts during free spins were not so high because I did not have wild symbols. The wilds pay out really huge so if you catch them into free games you are lucky.

Great Blue can easily eat your balance. I know that because it happen to me. I played at minimum bets and after free games I raised the bet. But suddenly my balance falling down, without any wild symbols or free games. I think you need to have a really good bankroll to play this game, or very very lucky day. I will rate it with 9 stars, it is a good game.

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