About Bonus Island Slot

Inspired Entertainment present a pirate-themed online casino game, where you can stumble upon buried treasure of up to 25,000x your stake. Every spin also comes with 15,625 ways to win, which is a high number when it comes to slot machines. Cascading reels can help form multiple wins from a single spin, but there are also mystery boosts and coin bonuses to provide extra winning potential too.

Play Bonus Island Slot and others in the series on mobile, desktop and tablet devices here at Bet UK.

How To Play Bonus Island Slot

There are buttons laid out to the left and right of the reels, which are required to play Bonus Island. On the left, you can use the up and down arrows to adjust your total bet, and the menu button to view the paytable. On the right, you can use the lower button to configure Autoplay, while the larger button allows you to play Bonus Island slot one spin at a time.

Bonus Island Slot Bonus Features

Cascading Reels

Any winning combinations will be removed from the reels, with fresh symbols dropping into their place, meaning you can win more than once from a single spin. This system also helps to trigger the Free Spins bonus.

Mystery Boost

You’ll probably come across a symbol or two that features nothing but a horizontal white line as you play Bonus Island. These aren’t valuable in themselves, but if a cannonball appears on the same spin, it will blast the mystery symbols and turn them into identical icons. This can help boost wins and trigger further cascades.

Coin Bonus

The mystery symbols may sometimes become coins instead. These will spin independently of the rest of the reels, and come to a halt. Whatever values are displayed will be added together, before a payout is made.

Bonus Island Free Spins

Four or more cascades in a row will take you to the Bonus Island map, where you’ll have to choose a chest to be your own. The round then plays out similarly to Deal or No Deal Megaways, where you’ll receive an offer in between eliminating other chests. Depending on which level of the bonus you triggered, you’ll either have a variety of cash values and Free Spins amounts, or just a range of Free Spins totals to win. At the end of the feature, you’ll receive your prize. Free Spins also come with an unlimited win multiplier that increases with each cascade.

Bet UK Bonus Island Slot Review

You may be more familiar with Inspired Gaming from their Centurion slot series, but Bonus Island is more than adequately equipped to become one of their flagship titles. From the ground up, the Bonus Island slot is all about generating as many chances to win as possible. Cascading reels can produce multiple wins from single spins, and the mystery boosts and coin bonuses can add value to those wins too. However, the Free Spins bonus can regularly lead to total wins of over 100x if you manage to enter it with at least 10 Free Spins, due to the unlimited win multiplier involved. For a similarly nautically-themed casino game, take a look at Slingo Cascade.