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The Official Slingo Site | Online Slots and Slingo Games

Great Blue Slot Machine

Great Blue
Great Blue has an RTP of 96.03% and a medium volatility. Here, there are 5 reels and 25 paylines. Minimum wager size across all lines is £0.25, and maximum bet size across all lines is £125. Great Blue is an underwater-themed online casino game developed by Playtech. There are stacked wilds in both the main game and free spins. The maximum payout is £250,000.
  • 25Paylines
  • £0.25Min. Bet
  • £1Max. Bet
  • £145Biggest Win
  • PlaytechProduced by
  • 5Reels
  • 2D/3D, FishGame Theme
  • NoJackpot

Great Blue Game Descriptions

From the opening screen, which depicts a friendly-looking killer whale resting against the game's logo, it is obvious that this attractively designed online slots game offers plenty of aquatic fun. Great Blue is a five-reel, 25-payline slot game with all of the features that online slots players crave, including stacked Wilds and an abundance of Scatter symbols.

Unlike some online slots games, there is no progression through a story in Great Blue. However, there's no need for gimmicks, as there are numerous opportunities to win large, and dedicated players keep returning to Great Blue to take advantage of the generous payouts. You can expect all the standard casino slot features in Great Blue, with a few exceptions. In the exhilarating bonus game, players can win 33 free spins and a 15x multiplier in addition to the scatter symbol. 

How to Play Great Blue Slot Online

Great Blue is not as complicated as many online slots games, but if you're new to the genre, it's a good idea to familiarise yourself with the controls.

  • Start by selecting the number of coins you wish to wager, keeping in mind that these are merely virtual coins during the free play mode, but they will allow you to observe how the wagering process functions.
  • Directly beneath the reels, the playing console is arranged. Starting with the button on the far left, click to disclose the coins you can use to play.
  • Your line wager will appear in the central window of your player console, and you can adjust the amount by selecting the button directly below this window, which increases your line wager by increments.
  • Once you're satisfied with your line wager, choose the number of lines you'd like to play with each spin of the reels. Simply select the number of lines that you feel secure playing with by clicking on the 'Lines' button. Remember that the higher your wager per turn, the more lines you play.

Great Blue Features

Great Blue has a couple features that can make the game even more exciting. There is plenty to anticipate here.

Free Spins

To activate it, you must acquire three images containing shells. Following this, the participant will receive 8 free spins with a specified wager. You also have the opportunity to enhance your number of free spins by playing a bonus game. This allows you to receive up to 33 free spins with a 15x multiplier for the entire bonus game.

Bonus Round

You can play a bonus round (Sea Shells) if you accumulate three shell images. You will be given a total of five casings to choose from, but you are only required to select two. If you make the correct decision, you can earn additional free spins and multipliers.

Great Blue Symbols

The number 9 is the lowest-paying symbol on the reels, but players can win when just two of them appear commencing on the leftmost reel on consecutive reels. The number 10, the Jack, and the Queen are the next lowest-paying symbols, requiring three matching symbols on consecutive reels beginning with the leftmost reel in order to win. Following closely behind are the King and Ace symbols.

Larger wins are associated with the game's adorable, animated aquatic characters, commencing with the gorgeous yellow-striped Angel Fish. The following symbols are the starfish and the seahorse, but the next two symbols, the shark and the turtle, offer the highest payouts. With these two symbols, as with the Number 9 symbol, a win is achieved by landing just two matching symbols on a winning payline, with the first symbol appearing on the leftmost reel and the second symbol appearing on the reel immediately to its right, making these symbols especially desirable during gameplay.


Has a max win of 750


Has a max win of 250


Has a max win of 150


Has a max win of 100


Has a max win of 750


Has a max win of 250


Has a max win of 100


Has a max win of 100


Has a max win of 400


Has a max win of 150


Has a max win of 100

Frequently Asked Questions


What is the minimum and maximum bet for Great Blue?

The minimum bet is £0.25 and the max bet is £125.

What is the RTP of Great Blue?

The RTP is 96.03% which is the industry average.

Can I play Great Blue on mobile?

Yes, you can play on any android or iOS mobile device.

What is the biggest potential win for Great Blue?

The biggest potential win is £250,000.

Who is Playtech?

The Playtech product suite can be fully incorporated into a comprehensive cross-platform offering, allowing players to access online, broadcast, mobile, and server-based gaming terminals via a single account. The most popular online gaming applications include online casinos, poker, bingo, sports betting, live gaming, casual games, and games with fixed outcomes.

Play Great Blue on Slingo

Dive into the Depths of Wonder with Great Blue on Slingo! Submerge into the enchanting world of Great Blue! Delight in its deep-sea gameplay, swim with its mesmerizing aquatic theme, and hunt for sunken treasures and massive wins! Anchor your gaming passion on Slingo - the leading lighthouse for smooth navigation, a vast ocean of game choices, and a fortress of trust. Plunge into the Marine Magic of Great Blue NOW on Slingo! The ocean's whispers, the call of the deep; an undersea odyssey of thrill and tantalizing treasures awaits. Experience the aquatic allure and make waves of winnings with Great Blue, exclusively on Slingo!

Great Blue Game Highlights

Slot Name

Great Blue




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V: 1.51.2 All rights reserved. January 2020