Great Blue Review – Dive into This Underwater Slot

This underwater themed slot takes you to a beautiful ocean scene filled with colourful marine animals. The Playtech video slot is packed full of special features. For starters, any winning combinations including a wild symbol are doubled. Plus, the sea shell bonus gives you a chance to pick your free spin and win multiplier combination. You can grab up to 33 free spins, or a 15x multiplier. Furthermore, you can gamble any line win for a shot at doubling your payout.

Great Blue
Play With £50 Bonus
Slot Rating:
  • Graphics: 4.3/5
  • Theme: 4.4/5
  • Features: 4.6/5
Overall Score: 4.5/5
Unique Features:
  • Free Spins
  • Win Multipliers
  • Gamble Feature
Basic Info: 5 Reels, 5 Paylines, 500,000 Coin Max. Win
Full T&Cs apply. 18+. New players only. Min bet €10 on qualifying games. 40x wager reqs (bonus only) on selected games. Bonus valid for 30 days. Certain deposit types excluded. Bets covering >70% of Roulette table excluded. Contributions to wagering reqs vary by game.
Last Updated on 30 Sep 2020 by Chief Editor Keira Miller
  • RTP:
  • 96.03%
Powered by: Playtech
Page Contents:

This page contains a complete review of Great Blue. Find out about the rules, settings and options. Plus, see the betting range. You will learn about which symbols have the highest payouts. There is also a complete rundown of the special features and what they involve. You will have the opportunity to play the slot for free and you will also learn the best online casino where you can play for real money. At the end of the page, you will also find other recommended slots that you may enjoy.

Play Great Blue for Free

Before we delve into the details of the game, would you like to try it out first? Below you will find a demo version of Great Blue which you can play for free. This is the best way to get to grips with the theme, the rules and the features. You will quickly be able to decide whether this is the type of game that you will enjoy. If you like what you see, then read on for a complete overview of the rules.

Play Great Blue for Free
Instant play

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An Overview of the Rules, Settings and Options

This video slot has 5 reels, 3 rows and 25 paylines. The underwater adventure theme is captured with relevant symbols and a blue, watery backdrop. The music is upbeat and has a Caribbean feel to it. If you enjoy fast gameplay, then you will be pleased to discover that the game includes both autoplay and turbo mode options. During turbo mode, some win animations and sounds are skipped and the reels spin faster. The game includes a gamble feature. You can take a 50/50 shot at doubling your payout by correctly guessing whether the next card revealed will be red or black. The game also includes the sea shells bonus, which includes a pick me bonus and free spins with win multipliers.

Symbols and Payouts

The game includes a variety of under-water themed symbols. The orca is the highest valued symbol, with a payout of x10,000 for 5 on a payline. It is also the wild symbol, and substitutes for all others except the scatter. When a wild is included in a winning symbol combination, the payout is doubled. Other high valued symbols include a shark, turtle, seahorse, starfish and a clown fish. The lower valued symbols are A – 9, which have air bubbles rising off them, in keeping with the underwater theme. The pink oyster holding a pearl is the scatter symbol. It pays a multiple of your total bet when 2 or more land anywhere on the reels. Plus, get 3 scatters to trigger the seashell bonus.

Great Blue Paytable
  • Wild Substitutions Pay x2
  • Free Spins
  • Wide Betting Range
  • Gamble Feature
  • Scatter Pays
  • Mobile Friendly
  • No Progressive Jackpot
  • Simplistic Graphics

You can play this slot with between 1 and 25 paylines active. In order to get to most engaging and entertaining playing experience, it is advisable to play with all lines active. You can adjust the line bet and the coin value to suit your budget. With all 25 lines in play, the minimum bet per spin is just 25p and the maximum is £62.50. This will suit most players, although it may be a little restrictive for the most experienced of high rollers. The maximum win is the game is 500,000 coins.

The Sea Shells Bonus – Free Spins with Multipliers

The key feature of the game is the seashells bonus. This is triggered when 3 or more scatter symbols land on the reels. You automatically get 8 free spins with a 2x multiplier. Yet, before they start, you enter the bonus game. Here, you pick 2 shells from the 5 displayed to reveal additional free spins and/or win multipliers. You can win up to 33 free spins or up to a 15x multiplier. During the free spins, if you get another 3 scatters on the reels, you are rewarded with an additional 15 free spins. There is no limit placed on the number of free spin re-triggers you can get.

Although the free spins bonus is a highlight of the game, it is not regularly triggered. Yet once you do launch the bonus, it can be very rewarding. With up to 33 free spins, or up to a 15x multiplier, you can stack up some big wins during the bonus. Plus, with a chance to re-trigger the bonus numerous times, you can get plenty of free spins to help amass some impressive payouts.

Play Great Blue on Your Mobile

This is one of Playtech’s most popular slots, and as such, it comes as little surprise that a mobile version is available. The layout has been simplified to provide the optimum view of the reels, ensuring that it is as engaging and immersive as the desktop version. Options to adjust the line bet, number of paylines and other such options are found in a separate submenu, which can be accessed with a simple tap of your finger. This keeps the layout clutter-free and allows the reels to take centre stage.

A Fun Slot with Rewarding Features

There is no doubting that this slot is fun to play. Whilst the graphics are not the most detailed you will find in an online slot, they are nonetheless colourful, cartoonlike and cute. The wild symbol doubles payouts when it substitutes in a line win, making for some big boosted payouts. The shell bonus is an enjoyable part of the game. Pick wisely and you could amass plenty of free spins and multipliers, leading to some big wins. If you like the fun theme and free spins in this game, then check out these other recommended slots.

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This slot has proved highly successful, with players coming back to it time and again. This is thanks to the fun theme, entertaining gameplay and the rewarding special features. It includes everything you could ask from an online slot; wild substitutions, win multipliers, free spins, scatter pays and more. You should now be completely prepared to confidently play Great Blue with real money. So don’t forget to check out Ladbrokes Casino, our top pick.