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Adventures of Doubloon Island

Yo ho ho! Calypso is looking fer some daring crew mates to join her plundering pirate expedition to uncover buried treasure on the mysterious Doubloon Island. With a chest full of bonuses and cash prizes awaiting ye, there’s more than enough to keep ye entertained on the rough seas. Ready to set sail on an adventure o’ a lifetime? Buckle up ye bootstraps and climb on board!



Ahoy, me maties! Are ye ready to set sail for an adventure on the seven seas? Join Calypso and her merry band of pirates on a journey to Doubloon Island, where buried treasures lie waiting to be uncovered.

So, scrub the deck and raise the sail, it’s time to get yer hands on some bonus booty. Doubloons with blimey good cash prizes are waiting for ye in the HyperHold Bonus – collect 15 doubloons for the Mega jackpot and win up to 2000x! For bigger wins and a better shot at the HyperHold Bonus, there are Free Spins fer the takin’. Activate the Win Booster to boost yer HyperHold prizes and increase the chance of winning the Mega jackpot.

Shiver me timbers, there’s a lot to get excited for in this pirate game! If ye ready to embark on an epic endeavour, play Adventures of Doubloon Island now.

For more legendary fun, check out the rest of our online slots and games.

How To Play

HyperHold Bonus

Each HyperHold symbol that lands is collected in the HyperHold meter and reset on each spin. 6 to 14 HyperHold symbols in any position trigger the HyperHold Bonus feature. Each HyperHold symbol awards a cash prize or reveals a jackpot. The feature begins with 3 respins. All triggering symbols are held on the reels. Each unheld symbol’s position spins independently. Respins have special reels with HyperHold symbols and blank positions only. All additional HyperHold symbols that land are held on the reels, and respins are reset to 3. The feature ends when no respins remain or when 15 HyperHold symbols are held on the reels. The HyperHold Bonus can be triggered in the base game and Free Spins.


Win Booster

The Win Booster increases the jackpot and cash prize values. The Win Booster also allows Mega to be awarded by the skull doubloon symbol. The Win Booster increases the bet by 1.5x, and does not affect line pays.


Free Spins

Low symbols are removed in Free Spins. 3, 4 or 5 scatters trigger 10, 15 or 20 free spins respectively. Landing 3, 4 or 5 scatters during Free Spins will award 10, 15 or 20 additional free spins. All bets during Free Spins are the same as the triggering spin.



Wilds substitute for all symbols except scatters and HyperHold symbols.



Scatters pay in any position. Scatter wins are added to line wins, and wins are multiplied by the total bet.


For information on symbols and base game instructions, please see in-game help menu.


Malfunction voids all plays and pay.

Game Information

  • Min stake: 10p
  • Max stake: £25
  • Max payout: £250,000
  • Jackpot: Yes
  • Paylines: 20
  • RTP: 94.02%​