Great Blue Review

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Great Blue is a 5 reel 25 payline game from Playtech, with an underwater theme. Visually, this game is pretty but it’s not going to win any prizes in this day and age. However, when the marine creatures come together in your favour, Great Blue can pay out rather well with its generous multipliers. This high volatility game is one of Playtech’s most popular slots for a reason. Find out more in our Great Blue slot review.

Look and Feel

The game is represented by the majestic killer whale, although once you get to the game screen, you’ll find yourself in a non-threatening underwater scene with starfish, sea turtles, friendly-looking shark and clown fish. It could easily be a scene in a bathtub full of toys. The soundtrack is a light, gurgling sound as you might imagine as you plunge into the ocean!

How to Play

Before you dive into the deep end, start by setting you bet size. The Great Blue slot has 25 paylines and you can decide how many you want to bet on. Then, select how much you want to bet on per line. It starts from 1p and up to £2 per line. That means that minimum bet per spin can be as low as 1p, however we do recommend betting on more paylines so you can hit wins more often. Once you’re good with your bet size, push the Spin button. There is an Autoplay option, as well as Turbo Mode button. It’s a bit of a mystery what the Turbo mode does. Supposedly it will make the reels spin faster and some animations get skipped, but we didn’t really notice that.

Symbols in Great Blue

If you’re looking to haul in the big fish, here are the symbols you want from highest to lowest in value:

  • Killer whale
  • Pink seashell
  • Shark, Sea turtle
  • Starfish, Seahorse
  • Fish
  • A, K, Q,J, 10 and 9

Special Symbols

Wild: Killer whale

Scatter: Pink seashell

The whale is the highest value symbol by a long stretch. The other marine creatures still pay out decently and are more or less within the same pay range.

Special Features and Bonuses

What special features lie deep in the ocean? Here’s what’s in store in the Great Blue slot:

  • Wild Double Wins: The killer whale is king. Not only is it a wild that substitutes for all symbols other than the scatter, it will also double your win when there’s a wild involved in your payline.
  • Seashells Bonus: Land 3 Seashell scatter symbols and you’ll enter a bonus game called 8 Free Spins that all come with a 2x multiplier. Once in the game, you’ll have to choose 2 out of 5 shells, which will give you extra spins and multipliers. The feature can be re-triggered.

Great Blue Compared to Other Slots

If you like that ocean theme, then there are several other games to try. Fishin’ Frenzy from Blueprint Gaming is quite popular and is loaded with extra spins. It’s even available in a Megaways option nowadays. The RTP is a bit higher and generally speaking, you can expect more frequent albeit also more modest wins in Fishin’ Frenzy. Or you could give Microgaming’s Mermaids Millions a try. This is also a relatively low volatility game with a pick me bonus game, extra spins and a 3x multiplier, which is small fish compared to Great Blue’s maximum multiplier of 15x.

If you’re looking for bigger treasures with higher volatility slot, then 300 Shields Extreme from NextGen should be next on your list. This Spartan themed game comes with a fierce multiplier than can go up to 300x. Enough said.

Great Blue Fairness

We’ll begin by saying Great Blue is a high volatility slot with a RTP of 94.25%. This is not a game that pays out often, but that’s ok because video slots come in all sorts of styles to suit different gambling appetites. If you’re looking for a slot that pays out frequently in small amounts, this is not the game for you. Playtech is famous for its high volatility games like Great Blue that pay out big prizes, however it may require more than a few spins before the fish bite.

Tips for Playing Great Blue

Although Playtech gives you the option to bet as few as just 1 out of the 25 paylines, we highly recommend that you bet on all 25 of them. High volatility games can be tough and betting on all lines will increase your chances of winning significantly. When you set your bet size, make sure you have all 25 lines, and then adjust your Coin Value to fit your budget. You bet size per spin will be displayed in the bottom centre of the game screen, under “Total Bet”.

High volatility slots like Great Blue are usually not the best choices for rookies as they can require patience, but patience can pay off handsomely sometimes. The patience also means it’ll ad up to more than a few pennies here, so if you’re on a limited budget, perhaps try the game with a casino welcome bonus first.

Hype or Not?

Great Blue is not going to be everyone’s cup of tea, but we have to say we thoroughly enjoy this slot. There are plenty of games that keep players hooked with a steady trickle of minnows, but for high rollers, more experienced players or simply those who are feeling more adventurous, a game like Great Blue is right on the order. There may be long lulls at sea, but the rewards can make it more than worthwhile.


For more ambitious slot players who are looking for more than a steady trickle of pennies, Playtech’s Great Blue may just be what you’re looking for. The killer whale is your friend, not only is it the wild but it will double your wins. In the Seashell bonus game, the multipliers are especially generous here and can go up to a 15x. We do warn you again though: this is a high volatility game that will require patience, so come stocked with extra chips to play.

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