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Great Blue Slot

From Microgaming's Mermaid Millions to Ariana from the same developer, underwater-themed slot games have always proved popular with gamblers. It's a top theme for online casino software developers: it lends itself to luscious graphics, the animation can be decent, and the bonus games original.

One of the timeless additions to the genre is Playtech's Great Blue video slot. It's a cracking 5-reel online slot that features Stacked Wild symbols, a free spins bonus with multipliers, and lots of regular icons. In fact, after a couple of minutes surveying the paytable, one can see this is virtually identical to Playtech's Irish Luck slot. But does it deliver four-leaf clovers or a pot of rubbish at the end of the underwater rainbow? Let's find out.

Bet On Paylines For A Top 1500x Payout

Although it's looking a little rusty now, Great Blue still has some signs of (undersea) life. The game is played over five reels and three rows for a 25-payline set-up. Line bets can be set from 0.01 to 2.00 for a max bet of 50.00 per spin. There are also Auto Spins and Turbo Mode functions.

The reels spin fairly well for an older slot, but the animation when you hit a winning payline is passable, especially if a Wild is involved.

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Great Blue

Casino of the year 2021

For all new players at Gambino Slots Casino

For all new players at Gambino Slots Casino
Casino of the year 2021

For all new players at Gambino Slots Casino

Swim Past The Letters And On To The Creatures

The low limit pays for punters are the 9-through-Ace symbols. You'll only need two 9s to earn a 2x-line bet win, but 5OAK (5 of a kind) gets you 100x. Only the A and K really pay better, with 150x achievable for 5OAK.

Keep an eye out for the yellow angel fish. This cutie will pay 400x for 5OAK, with the seahorse and starfish both paying 250x for the same winning payline. The shark and turtle are the best regular symbols and award for just two matching on the reels. You'll earn 2x for two of a kind, but a maximum 750x award for 5OAK is very good. Overall, though, this slot is fairly low-medium volatility given the types of wins we regularly racked up.

Sea Shells Scatters Secure Free Spins On the Shore

The killer whale is this online slot's Wild symbol. Just two Wilds will get you a 10x win, but five Wilds will bag you 10000x. These Orcas will substitute all regular symbols in the game other than the Scatter bonus symbols. In addition, they double any wins they help complete (with the relevant payouts helpfully displayed in the paytable).

The Scatter symbol here is the oyster shell, baring its gleaming pearl for all to see. Just two Scatters gets you 2x, but five Scatters bags the gamblers a 500x prize. In addition, three or more Scatters anywhere will activate a free spins bonus game. You win up to 33 free spins with a multiplier of 1x-15x.

Like Irish Luck, you first have to choose from the clams/oysters on-screen. Each will contain extra free spins or a random multiplier to add to your haul. You begin the round with 8 free spins and a 2x multiplier anyway, so these are welcome additions. Like all the best Playtech bonus slots online, the free spins feature can be retriggered indefinitely.

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