Adventures of Doubloon Island Slot Review

Ahoy me hearties, we’re on a quest for pirate gold in the Adventures of Doubloon Island slot, a 5 reel, 20 payline game from Triple Edge Studios and Microgaming. This pirate-themed slot comes with a couple of classic bonus features. Trigger the free spins and you’ll play up to 40 free spins on reels where all the lower value symbols are removed. The HyperHold feature is a streak respin bonus. Each HyperHold symbols comes with a cash value or a jackpot prize attached. Fill the game grid here to land the Mega Jackpot which is worth up to 3,333 x stake. Find out more in our detailed Adventures of Doubloon Island review.

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Adventures of Doubloon Island Slot, Details & Wager Limits

The action in the Adventures of Doubloon Island slot plays out on a 5 reel, 3 row, 20 payline machine. To create a winner, land 3 or more matching symbols or wilds on a payline, starting from the leftmost reel. Scatters can land anywhere.

You can play this pirate adventure at stake levels of between 10p and £75 per spin. Use the + and – tabs below the reels to set your stake. The autoplay option allows you to set 10, 25, 50 or 100 autospins.

The Adventures of Doubloon Island RTP is 96.01% which is about average. The hit rate means that on average, you can expect to land a winner around once every 4.66 spins. The volatility here is in the high range. The max win is 3,333 x your total stake which will come from the fixed jackpots.

Theme – Audio and Design features – go hunting for pirate treasure


The visuals in Adventures of Doubloon Island are done in a comic book style. With the bay of a tropical treasure island in the background, it has a pirate theme. The soundtrack is rather gentle given the pirate theme but turns into something livelier when you trigger the bonus features.

The reels are set on the pages of a map and include gemstone heart, diamond, club and spade symbols. Joining them are cutlasses, a parrot, a gnarly looking pirate and the ship’s captain. With the captain being the highest value symbol, landing and 3, 4 or 5 will give you an award of 1, 5 or 20 x your total stake.

The female pirate holding a pistol is the wild. She replaces all the standard symbols in winning combinations and can appear 1, 2 or 3 symbols high. Finding 3, 4 or 5 wilds in combination delivers a payout of 2, 10 or 50 x stake.

You can set sail to Doubloon Island on all devices including smartphones, tablets and desktop and laptop computers. The comic book imagery works nicely on the smaller screen. The relatively simple gameplay works just fine too. The Adventures of Doubloon Island mobile slot plays well.

Adventures of Doubloon Island Bonus Features

The pirate theme is a classic one in the online slots world. Microgaming has added some classic features here too. There’s a free spins bonus with only high value symbols in play. Potentially more intriguing is the HyperHold feature. This streak respin round offers the chance to land cash prizes as well as 4 potential jackpots.

Free Spins feature

The treasure chest overflowing with jewels is the game’s scatter symbol. Land 3, 4 or 5 treasure chest scatters anywhere on the reels on the same spin and you’ll pocket an award equal to 2, 15 or 100 x your total stake. You’ll also trigger the Free Spins feature.

You’ll then go on to play 10, 15 or 20 free spins. These take place on reels where the lower value playing card suit symbols have been removed. This means only high value symbols appear on the reels. Retriggers are possible too. Land 3, 4 or 5 treasures chests and you’ll play another 10, 15 or 20 free spins.

HyperHold feature


The gold coin and the skull are the 2 HyperHold symbols. Land 6 or more of these on the same spin to activate the HyperHold feature. The triggering symbols are held. You’ll then play 3 respins on reels that are made up of blanks and HyperHold symbols.

Land a Jackpot or HyperHold symbols and they too are held and the respins reset to 3. The round continues until you’ve used up all your respins or you’ve filled all 15 positions on the grid. All the coins come with a cash value attached. These can be worth 1 and 50 x your total stake. These are added together to give you an overall prize.

If there are any skull symbols on display, they award one of the Mini, Minor or Major Jackpots. If you manage to fill the whole of the reels with coins and skulls, you’ll trigger the big one. This Mega Jackpot prize is worth 2,000 x your total stake:

  • Mini Jackpot = 25 x your total stake
  • Minor Jackpot = 100 x total stake
  • Major Jackpot = 500 x total stake
  • Mega Jackpot = 2,000 x total stake

Win Booster feature

You can increase the value of the prizes on offer in the HyperHold feature by activating the Win Booster feature. This raises the size of your standard stake by 1.5x. With the Win Booster active, you could also land the Mega Jackpot by landing a skull and not just by filling the whole of the grid.

The Win Booster has no impact on standard payline wins. This is what the jackpots are worth with the Win Booster active:

  • Mini Jackpot = 33.33 x your total stake
  • Minor Jackpot = 133.33 x total stake
  • Major Jackpot = 666.66 x total stake
  • Mega Jackpot = 3,333.33 x total stake

Adventures of Doubloon Island Review Summary – decent pirate treasure hunt

Free spins with the lower value symbols removed plus the HyperHold feature where you can land instant cash and jackpot prizes is a solid feature combination. The Adventures of Doubloon Island slot is decent enough visually without being dazzling.

The bigger wins will come from the HyperHold feature, especially if you use the Win Booster. With a max Mega Jackpot of 3,333.33 x your total stake, the max payout of 1,000 x stake per spin or free spin isn’t something to get excited about really.

This isn’t the most original slot you’ll see but if you enjoy a good old fashion pirate treasure quest, Adventures of Doubloon Island should appeal. The 123 Boom slot by 4ThePlayer offers big wins (14,727 x stake) and a unique Slot Slider feature as well as explosive wins and free spins with an increasing multiplier.

Another option is Pirate Kingdom Megaways by Iron Dog Studio where you can win 40,000 x stake from each spin.

Adventures of Doubloon Island FAQs

What is the Adventures of Doubloon Island RTP?

The Adventures of Doubloon Island return to player rate is 96.01%. Highly volatile, you’ll land a winning combination every 4.66 spins.

What is the Adventures of Doubloon Island max win?

Playing in the default mode, the biggest possible win is 2,000 x your total stake. If you use the Win Booster, you can win 3,333.33 x your total stake from the Mega Jackpot.

What is the HyperHold feature?

The HyperHold feature is a streak respin round where you collect coins during your respins to win cash prizes and fixed jackpots. Fill all 15 positions and you’ll win the Mega Jackpot which can be worth up to 3,333.33 x your total stake.

Is there an Adventures of Doubloon Island free spins feature?

Yes, the Free Spins feature gives you up to 40 free spins. They are played on reels where all the lower value symbols are removed. You can trigger the HyperHold feature from within the free spins too.

Adventures of Doubloon Island Slot Information

  • Game:
    Adventures of Doubloon Island
  • Provider:
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Stakes Range:
    10p to £75
  • Bonus Features:
    Yes (3)
  • Free Spins/Multiplier:
  • RTP %:
  • Max Win:
    3,333.33 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.

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