Slots with Expanding Reels

One of the ways to spice up the gameplay is to use expanding reels. The feature is widespread and has multiple twists and variations. That’s why exploring this list of slots with expanding reels can be a fun experience. All games are available in practice mode without registration.

It will help if you use filters, available on this page, to easily find games to your liking. Select a software provider, RTP, volatility, and many other game characteristics. Another good option is to pick one of the collections such as Most Popular, Jackpots, Bonus Buy, and Megaways.

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Last Updated: March 1, 2022 at 2:55PM ()
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What Are Expanding Reels?

It’s an exciting feature that adds more symbols to the reels. As a result, the reel height increases. The expanding reels in slots are very popular. Studios may find different ways to implement it, but the idea remains the same. Expansion usually gets triggered by winnings. You’ll either have the entire layout grow in height or only individual reels.

Reels expand during bonus and base games. In some cases, free spins are played with all reels at their maximum height. Some developers have introduced thrilling modifications to this feature. Like, for instance, Infectious xWays engine by Nolimit City. xWays alone is thrilling because it awards two or three symbols that take a single position. But then other reels with similar symbols get infected and expand to the same height.

Types of Slots

If you explore this selection, you’ll find out that it’s incredibly versatile. There are video slots that feature all sorts of bonus rounds and modifiers. You can choose uncomplicated gameplays with frequent payouts or feature-rich titles that are highly entertaining. Some titles even share common characteristics with classic slots. Many expanding reels slots feature cascading wins and all ways win engines.

The feature buy option is also available in plenty of games. If you love to buy your way into bonus rounds, test some titles from the Bonus Buy collection available on this page. The price varies from title to title, and it can be higher or lower depending on the rounds’ win potential. But usually, it varies between 50x and 100x bet.

Best Expanding Reels Casino Slots

This collection is full of great hits and is regularly updated. If you want the best titles, check out the Most Popular collection on this page, because it consists of titles the gambling community enjoys. Additionally, you can set filters to narrow down the selection.

Infectious 5

In this slot, Nolimit City uses its unique xWays and Infectious xWays engines. When a special symbol lands on the reel, it reveals 2 or 3 similar symbols resulting in the expansion of the reel height. A wild symbol that pops up on the screen at the same time, turns xWays into infectious, which triggers the expansion of other reels with the same symbols. This is a great expanding reels slot. What’s even more exciting is players can test all the features at any moment if they buy bonus games in practice mode.

Cash Bonanza

Central to this slot is a Respin feature with expanding reels. It gets triggered by every winning combination which gets locked for one respin. There can be a streak of expansions and locked symbols until the reels reach their maximum 8-row height. This feature can also be triggered during the free spins. It’s a widely popular Pragmatic Play game that has nothing fancy but offers engaging gameplay.

Katmandu Gold

The entire Gold series produced by ELK Studios features expanding reels. The initial 6×4 layout can grow up to 6×8. Every win triggers cascades and then new symbols drop to fill the gaps and add extra rows. When there are two or more special Ice Climber symbols landing on the reels at their maximum height, the reels expand by 1 one last time.


The slot was developed by AvatarUX, which is one of Yggdrasil’s content partners. It was the first title to introduce the PopWins engine that is built on the idea of reels that can grow in height. Like many expanding reels slots, the activation of the expansion takes place after a winning combination. The maximum height is 7 rows, and when reels reach it, wild symbols get unlocked and the multiplier, which usually increases by 1 for every 7 symbols popped, now increases by 2. It’s a simple, yet engaging game that offers a very peaceful and pleasant environment.


Nitropolis’ reels can grow up to 24 symbols high, producing over 85 million ways to win. Nitro Reels are miniature reels that cover two positions and offer up to 12 symbols each. There is a place for two Nitro Reels on every regular reel and together they can give up to 24 symbols. You can test this slot for free to see how this works. Nitro Reels land pretty frequently so you won’t spend much time spinning the reels to trigger the feature.