Released: 1 Feb 2009

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Great Blue Slot

Great Blue Slot Online

Dive deep into the ocean to enjoy Playtech's five-reel, 25 payline sea-themed slot! Great Blue slot is based under the sea level and the main character is a killer whale, but don’t worry, you’re safe behind your screen, regardless whether you’re playing the game on your desktop computer, your smartphone or your tablet.


The only way you could go wrong while playing the Great Blue slot is if you’re playing the game while diving on the bottom of the ocean in one of those home-made submarines. If James Cameron is your friend, then you are safe as you can go explore the ocean's bottom. Otherwise, find out more about this amazing Playtech game, as you’re on the right page, because the Great Blue slot in one amazing peace of reel action that has turned heads ever since the killer whale landed on five reels and brought the hefty cash sum at one of the online casinos.

Great Blue Overview

You'll first notice the sharp and excellent graphics when you launch Great Blue slot game. The graphics are pretty neat and quite advanced. Visually and aesthetically the game is quite soothing and calm. You will see bubbles appearing on the reels and surrounding them and this only adds to the feel that all action happens under water.

In terms of controls and user interface, the game is quite straightforward and user-friendly. There are five reels and three rows with a total of 25 paylines, so in that respect the game doesn’t differ much from other slots with a similar outline.

How To Play Great Blue

Great Blue appeals to players regardless of their bankroll. You can play this game with as little as 1p per payline, in which case your overall stake would come to just 25p. The maximum amount that you can wager per payline is £5 and in that case one spin would cost £125. However, if you play at a maximum stake rate you will be able to win much higher prizes, so if you are willing to take a risk and wager more, it might be worth it, provided that you manage to hit a nice winning combination.


You don’t have to activate every payline, i.e. you may decrease the number of active paylines and play with just one active line, or any number between one and 25. Bear in mind that if you decrease the number of active lines you won’t win anything if a winning combination is arranged across a payline that hasn’t been activated, so we suggest you decrease the amount you wager per payline, instead the number of active paylines.


There are few buttons that you can use if you want to set and adjust the stake per payline. First you can set the range that you want to wager per line, then there’s a second button (line bet) which gives you the opportunity to select the exact amount you would like to place. By pressing the ‘lines’ button you can alter the number of active paylines. Finally, there’s the ‘bet max’ button that you need to press if you want to bet at the highest stake under the currently selected option. There’s also an auto play button labelled ‘auto start’ and you can use the ‘+’ and ‘-‘ buttons to set the number of auto spins.

How To Win Great Blue Slot

The Great Blue slot's lower value symbols are the typical playing card symbols, i.e. the respective letters and numbers, whilst higher value symbols include a starfish, a yellow tropical fish, a seahorse, a turtle and a shark. Out of all ocean-themed slots, Great Blue appears to be up there with the best, at least in terms of graphic quality.

This slot game's wild symbol is a blue whale, whilst the pink-shelled pearl is the scatter that can activate a bonus feature! The wild symbol can replace all symbols except for the scatter, but it also awards the highest prize in the main game, provided that you manage to hit five wilds across a payline. In this case you will receive a prize worth 10,000 coins. Some of the other thematic symbols also offer lucrative prizes.

Great Blue Bonus Features

Free Spins

Great Blue slot features a free spins bonus and we have to admit that this bonus is one of the game’s greatest features. This is the slot game's main bonus feature, so you should consider yourself lucky if you manage to trigger this bonus. In order to do that you will need at least three scatter symbols anywhere on the reels. The free spins bonus begins with eight free spins.

Firstly, you'll also have to pick two out of the five shells on show and depending on which ones you select, you could receive up to 33 free spins and a 15x multiplier! You can also win even more free spins by landing three more scatter symbols, and there's no limit to the amount of times that this feature can be retriggered.

Gamble Feature

This is a quite standard feature, available in a number of online slots. It is very simple, the feature becomes available after any win and you get to choose whether the next card is going to be black or red. If you haver guessed correctly your winnings will be doubled, otherwise you will lose it. Bear in mind that this option can be quite risky, so use it only if your intuition ticklets your gut feeling the right way, so that you may multiply your winnings.

The wild symbol in this game – the blue whale can be stacked, you could get two or three symbols on top of each other, so it can cover a whole reel in which case your winning chances are boosted significantly.

Our Great Blue Review

Great Blue is an excellent slot game with truly outstanding graphics. The bubbling background is nice backdrop for the sharp symbols and smooth gameplay. The bonus features are quite amazing, especially the free spins.

Overall, Great Blue is an enjoyable game, that offers a bit more than most other slots, plus the graphic design is quite outstanding. If you want to play this game, sing up at one of our casinos, claim your bonus and start playing right away!

Key Features
About The Author

Sanja Tasevska


Sanja is our game expert and uses her knowledge to review all kinds of slot games, both old and new. The detailed reviews include the most important info about a particular slot game. She’s been a part of this industry for many years and so far she’s played and given her opinion on thousands of different slot titles. Contact Sanja

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