Play Great Blue Slots

Great Blue an online casino slots game, available at, is a five-reel, 25 payline online slots game with an amazing undersea theme. Here you'll travel to the depths of the sea and embark on a fun underwater adventure where the goal is to hit winning combinations using whales, sharks, turtles, seahorses, fish, starfish, pearls, and face cards and aces to get the best possible payouts!

Betting Options

Great Blue coin values range between $0.01 and $5.00. Once you have selected your coin value, your next step is set the number of paylines to bet on. The more paylines selected, the higher the chances for winning combinations. To bet on all 25 paylines at the maximum bet of ten coins, you can simply hit ‘Bet Max’. To bet on the predetermined number of paylines at a lower bet, hit Bet One and then Spin.

Additional Gamble Feature

For those who like a little extra fun, Great Blue, like other online casino games such as The Discovery and La Chatte Rouge, offers an extra gamble feature. Hit the Gamble button for your chance to double all winnings. All you must do is determine if the next card shown will be black or red. To save your winnings and go back to the online slots game, click on ‘Collect’.

Wild Symbol

The Orca (killer whale) symbol is the biggest payout symbol. If you get five Orca symbols along a payline, you win the 10,000 Jackpot. The Orca symbol is also the wild symbol that acts as a substitute for all symbols other than the Scatter symbol. If the Orca symbol is utilized to make a winning combination, it becomes a 2x multiplier and will double the winnings. Because the Orca symbol is stacked, it may appear on all three spots of a reel.

Scatter Symbol and Bonus Feature

The Scatter symbol for Great Blue is the Pearl. Two, three, four or five symbols will net you 2x, 5x, 20x, or 500x the total bet. Get three Pearl symbols and the Bonus Feature is triggered. Winning the Bonus Feature gets you eight free spins with a 2x multiplier. At the Bonus Feature, select two of five shells on the screen to get more free spins as well as multipliers. The most you can win is 33 free spins or 15x multiplier.

Download our casino games online software and register for a real money account with to begin your underwater adventure today!