Great Blue Slot Review

Gamblers Pro rating

Embark on an underwater journey with Playtech's Great Blue slot. Set in an oceanic world, this 5-reel, 25-payline game offers a straightforward slot experience with a focus on an aquatic theme. This Great Blue slot review provides an unbiased look at its features, gameplay, and overall appeal.

Pros & Cons

  • Free spins bonus round
  • Large multipliers in features
  • No progressive jackpot


Game Information


Special Symbols - The blue whale symbol, which substitutes for all others except the scatter, can significantly enhance winning combinations by doubling payouts.
RTP - 96.03%, aligning with industry averages.
Volatility - High, suggesting potentially significant but less frequent wins.
Sea Shells Feature - The Sea Shells Bonus Feature in Great Blue is a highlight of the game, offering players a chance to significantly boost their winnings. Here's how it works:

This feature is activated when you land three or more Sea Shell scatter symbols anywhere on the reels. This occurrence not only triggers the bonus round but also awards an instant payout — 5 times your stake for three scatters, 20 times for four, and a generous 500 times for five.

Upon activation, you are initially awarded eight free spins with a multiplier to double all wins. This sets the stage for potentially lucrative outcomes.

Before the free spins commence, you are presented with a selection of shells to choose from. You get to pick two out of five shells, each revealing additional free spins or increased multipliers. This selection can elevate the initial 8 free spins up to a maximum of 33 and the multiplier from 2x up to 15x.

One of the most exciting aspects of the Sea Shells feature is the possibility of re-triggering. Landing three or more scatters during a free spin adds another 15 free spins to your total, with the multiplier remaining as initially set. This re-trigger can happen indefinitely, theoretically leading to a long sequence of free spins.

Free Spins Feature - This bonus round is intrinsically linked with the Sea Shells Bonus Feature. Here's what players should know:

As mentioned, the free spins are initially triggered as part of the Sea Shells Bonus Feature, starting with at least 8 spins.

Every win during the free spins round is subject to a multiplier, which starts at 2x but can be increased up to 15x based on the shell selection.

Additional scatter symbols during this round can significantly extend the playtime and enhance winning potential. This re-triggering can occur multiple times, each time adding 15 spins to the existing total.

The combination of free spins and multipliers has a substantial impact on the overall potential winnings. High volatility means that wins might not be frequent, but when they do occur, especially during the free spins with high multipliers, they can be quite substantial.


Great Blue offers an uncomplicated slot experience with the excitement of a significant maximum win potential. Its high volatility makes it suitable for players seeking big wins, though it might not appeal to those preferring more frequent, smaller payouts.

The game’s simplicity and oceanic theme provide a nostalgic slot experience, but the lack of diverse bonus features might be a drawback for some. Overall, Great Blue is a solid choice for fans of straightforward, high-stakes slot play. This is one of the classic Playtech slots and is well worth checking out.