In whatever way you choose to play, when it comes to online Slots, there’s never a dull moment. You can play the classic way, or if you want a little more excitement in your gameplay then you can look for a game with a MegaWays or Mystery Boost feature. Speaking of which, we’ve searched through the best in all online Slots and brought together some of our top picks. The following games are so good, they’re even worth spending your new player casino bonus offers on! Don’t believe us? Read on to find out more.

Kluster Krystals: MegaClusters

Take your chances and dive deep into the treasure troves with this slot. Roll in clusters of symbols and watch as they’re upgraded up to two, three and even four times bigger! There’s also an Avalanche Reels feature that’ll remove those winning clusters and replace them with extra symbols falling from above the reels, to help forge even more winning combinations. What’s more, land up to six of the Avalanche symbols and you’ll go on to activate one of the three mini bonus games.

Gameplay begins from just 0.10 credits, with so many ways to have your shot at a win. As you get the reels spinning, you’ll start to roll in a whole host of different themed symbols. First, there’s a range of colourful Krystals, coming in with a selection of single, double, triple and quad-sized sparkling icons. Land these symbols next to winning clusters and you’ll trigger those Krystals to expand. You can also roll in multiplier symbols throughout your gameplay, which will then be used alongside those aforementioned winning clusters! To create even more excitement, you can also utilise the bonus scatter which will lead you on to play the Free Spins bonus feature.

Bonus Island: Mystery Boost

Now for a pirate-themed adventure, inviting you to step aboard and spin the reels, in the search for your own treasure chest. Become one with a crew of castaways as you try your luck with this vibrant and animated slot, following a fun and engaging storyline. The action takes place across six reels and five rows, with up to 15,625 ways to win. 

The symbols are in keeping with the game’s pirate theme, ranging from swords, muskets, treasure maps and anchors. These seafaring icons will roll in across the reels, whilst the tropical blue waves crash in the background. In order to trigger a win, you’ll need to roll in at least three matching symbols across one payline – the more matching symbols found, the more you stand to win! There are also cascading symbols that you can benefit from, which can go on to unlock the Bonus Island jackpot feature. 

When it comes to the special features, this game has plenty. There’s the Mystery Boost, which gives the game its name, and transforms all mystery symbols into a coin or winning icon. There’s also a Coin Bonus Base game which will work alongside the mystery symbols.