Great Blue Slot Review 2026Playtech

Great Blue Slot Sites & Free Demo Play

Dive into the ocean depths to play Great Blue, a five-reel video slot from Playtech. Solid gameplay delivers up to 33 free spins in the bonus round, with multipliers that climb as high as 15x, for big prize payouts worth up to 20,000x your stake.

We’ve visited all the top casinos to find the best Great Blue slot sites where you could spin up real cash prizes. Discover how to play, find out what triggers the bonus rounds, and explore Great Blue slot free play games with the help of some fantastic bonuses!

Key Game Features

Casinos that offer this game

We examine all the slots online UK players are able to access, and we put each one through its paces. Then we dig even deeper to uncover the top five casinos offering each game we review. In the case of Great Blue, we think these five operators simply can’t be beaten, whether for the ease of playing Great Blue slot demo spins, or for the fantastic quality of the reel-spinning experience on offer.

1.

4.9/5

BetMGM UK Review

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4.7/5

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Game rules

Great Blue isn’t all about photo-realistic graphics or mind-blowing animations. But if you’re looking for straightforward slots action with a lively bonus round and a potential top payout worth 20,000x your stake, then this could be the game for you.

Great Blue symbols

Playing card icons deliver the lowest returns in Great Blue, with the aquatic creatures bringing the best potential returns. There’s a cute turtle, a little seahorse, a fish, starfish and a shark. And there’s a Killer Whale too, which not only tops the paytable but also acts as the game’s Wild. It even doubles the value of any win in which it substitutes, and it comes stacked on the reels, so it can activate multiple wins at once! Look out for the seashell and pearl Scatter too, which triggers the free spins bonus round.

Min/Max wagers & lines

Great Blue comes with 25 variable paylines, each costing from 1p each, so that’s the minimum cost of a spin. But we strongly advise activating all paylines, even though it’ll cost you a minimum of 25p per spin to do so. The more paylines you include, the greater your chances of winning a prize – and given that this game has the ability to spin up multiple winning combinations at a time, you’re best off maximising your opportunities. Test out a few Great Blue slot demo spins for yourself, and you’ll soon see what we mean!

Playing at maximum stakes will cost you £50 per spin, so with that potential top payout worth 20,000x your stake, this is a game that high rollers keep returning to. There’s a lot to play for – just bear in mind that only a few lucky players will hit that jackpot payout.

Slot	Great Blue	Buffalo Blitz	Ugga Bugga	Age of the Gods
Software	Playtech	Playtech	Playtech	Playtech
Year	2013	2016	2006	2016
RTP	94.3	95.96	99.07	95.02
Volatility	-	high	low	high
Bonus Rounds
Free Spins
Multiplier

Pay table & bonus rounds

Most online slots require you to match up at least three symbols across an active payline to win a prize. But Great Blue will reward you for just two matches for the lowest and highest paying icons. Returns for matching up two, three, four or five symbols pay out as multiples of your payline stake, as follows:

• 9  =  2x,  5x,  25x,  100x
• !0,  J,  Q  =  5x,  25x,  100x
• K,  A  =  10x,  50x,  150x
• Starfish,  Seahorse  =  15x,  75x,  250x
• Fish  =  20x,  100x,  400x
• Turtle,  Shark  =  2x,  25x,  125x,  500x
• Whale Wild  =  10x,  250x,  2500x,  10000x
• Seashell Scatter  =  2x,  5x,  20x,  200x

Wilds double the value of every win in which they act as a symbol substitute. And if you land three or more Scatters, you’ll activate the free spins bonus round. Start with 8 free spins and a 2x multiplier, then pick two out of five seashells to unlock up to 33 free spins with a 15x multiplier! Landing three or more Scatters during the bonus round awards 15 extra free spins at the same multiplier as the triggering spin.

Renowned casino website

BetMGM UK Bonus

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Animation, graphics, and soundtrack of Great Blue

Graphics and sounds are nothing much to write home about in Great Blue, but they’re perfectly acceptable – and even quite fun! Playing card icons take the form of semi-transparent bubbles, and the sea creatures all animate when they feature in a win. Overall, the experience is very much like playing a video slot at a land-based casino.

Great Blue RTP and volatility

The Great Blue slot RTP is very slightly above average at 96.03%, although this doesn’t mean that you’ll receive back just over 96p for every £1 you spend, as is sometimes suggested. Whether it’s the Great Blue slot RTP, or the Jack Hammer slot RTP, the return to player statistic is purely theoretical, indicating the average amount of money that a game returns to players over thousands of games.

Checking out the volatility of an online slot is a far better indication of how it might play out over time. In the case of Great Blue it comes in at medium to high, so lower-risk slots fans need to take great care. Try out Great Blue slot free play games as much as possible in the first instance and make sure you compare with another game, like the Great Rhino slot, to get some perspective. You can’t keep the cash you spin up from the Great Blue slot demo, but at least you’ll still have your bankroll intact for another day!

Return to Player Rate (RTP)

Below Average 94,30%

High 97.5%

Above Average 96.5%

Average

Below Average 94%

Low

93%

Mobile availability

Great Blue may have been around for a while now, but the technology is certainly up to speed. Whether you prefer to play on your PC, laptop or smartphone, this is a game designed to work perfectly across all platforms.

Great Blue verdict

Action and adventure gamers and casual players won’t find a huge amount to enjoy in this game. The emphasis is on the mechanics, rather than the aesthetics, but if you can get past that there’s some exciting volatility to be found. That’s why Great Blue continues to draw in the risk-takers, who appreciate the opportunity to play for some big payouts.

Of course, even if you don’t have the actual budget, you can still play like a high roller if you opt for Great Blue slot free play games. Test your luck and see for yourself just how far your actual gaming funds might be able to take you – completely risk free!

1.

4.9/5

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Visit Provider

New cust only. Opt-in required. Time to deposit/wager 7 days. Deposit £10 & wager 1x on casino games (wagering contributions vary) for 200 Free Spins worth 10p each on Big Bass Splash. 3 day reward expiry. 18+. T&Cs apply. 18+. T&Cs Apply. GambleAware.org.

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4.8/5

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4.8/5

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Great Blue slot FAQ