Sat. May 25th, 2024

The rapid growth of the iGaming industry and unprecedented expansion of the online slot market, in particular, had many software providers scrambling to find new ways to engage players. Some big-name game makers were at the forefront of creating their own innovative mechanics, others caught up a few years later, while a great bulk of companies opted for licensing the tried-and-true features instead of reinventing the wheel.

Whatever the case, they all contributed to the incredible diversity of modern slot games offered today by online casinos. Naturally, it is impossible to cover all the reel engines that have ever been produced within one article – many of them are very similar in the way they work. Our goal was to introduce the most exciting and advantageous high-tech wonders designed to provide more winning opportunities and generate truly massive prizes.

Here you have it: all innovative reel mechanics that are worth your attention simply because they make spinning so much more fun!


Also called tumbling, falling, rolling, collapsing, avalanche, and even swooping, the cascading reels have been around for quite a while – you will be hard-pressed to find a top-tier software developer who hasn’t given this concept a try.

Despite different names…

… the idea is the same: after a win, symbols that are part of the winning combination disappear from the screen to be replaced by new icons that can help complete more lucky combos. The process continues until no more wins are formed, so basically, it is all about getting more bang (read: bigger payouts) for your buck. You make one bet but with a little help of lady luck can enjoy the fruits of several spins.

NetEnt’s Avalanche feature is among the pioneers of cascading reels and Gonzo’s Quest launched in 2010 is still one of the most popular online slots out there.

Among a great many universal favorites enhanced with this advantageous feature are:

  • Reactoonz by Play’n GO
  • Sweet Bonanza by Pragmatic Play
  • SugarPop! by BetSoft
  • and Tahiti Gold by ELK Studios…

… to cite just a few.

The appearance of the Cluster Pays mechanic changed the way players can win in a slot game. Instead of landing identical symbols on a traditional pay-line, you need to form clusters of the same icons – the bigger the group, the more impressive the prize. The roster of cluster games is pretty extensive, including Astro Legends from Foxium, Mahjong 88 by Play n Go, Golden Glyph made by Quickspin, and many other titles.

Even though the concept has been known since the early 2000s (it was borrowed from Tetris and Candy Crush Saga), Aloha! Cluster Pays launched in 2016 is the first game with the name of the feature in its title. By the way, to hit a win on the 6×5 grid of this video slot, players have to form a cluster that contains at least 9 identical symbols.

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