Great Blue

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Welcome to Online Casino King's Great Blue page! The Great Blue slot is an undersea themed slot which is a personal favourite.
Get a Great Blue £400 (100%) Bonus at
It's not for everyone, as it's pretty high variance, but if you like a roller coaster ride, you'll love it.
You can retrigger the free spins in the free spins round indefinitely (up to 35 spins and up to x15 multiplier each time).

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This Playtech slot is one of the latest in a line of games that has really upped the ante in the online casino world. Playtech are setting the pace, particularly when it comes to slot games, and Great Blue is a good example.

great blue slot machineOn the face of it, this is a pretty relaxing and chilled out slot, with its tranquil undersea setting, but things can get pretty charged when you start landing stacked wild symbols (Great Blue himself) and bonus round that fair whistles along. This is a slot with quite a following, particularly among high roller players.

One of the reasons the big players like it, is because it is a high variance slot (by that we mean the payouts can be highly volatile- one minute you are seeing nothing, and the next all hell breaks loose). But just be aware, that you can get stuck in the deep blue sea at times, with nothing going on. You need enough bankroll to see you through these lean periods and to get into the feeding frenzy. This isn’t a game you can dip your toe into (unless you’re very lucky), but it is one of our favourite Playtech games along with the Gladiator slot and Ironman Two (both of which might be less of a white knuckle ride, if the high voaltility of Great Blue is scaring you off).

The one thing we really like about the Great Blue Slot? Well, when you are in the free spins round, you can retrigger the free spins infintely (with 3 clams symbols or more anywhere on the reels). In practice, nothing goes on forever, of course, but we have seen some pretty major runs on this. And given that you can win up to 33 free spins with a x15 multiplier, this can really heat things up!
There’s also a gamble feature (you guess whether the next card is red or black after a win). Personally we don’t play this feature, but it’s there for those of you who like to double their bets.

The graphics are superb, and the sound too- it’s high quality entertainment all round, and for us, one of the top slots out there.