Expanding Wilds in Online Pokies: How They Work and The Top 5 Games

Ryan Anderson
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Expanding Wilds in Online Pokies: How They Work and The Top 5 Games
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Expanding wilds are one of the most exciting features in online pokies today. Imagine a single symbol lands on the reels, then bursts to life, stretching across an entire column and unlocking massive payouts.

Expanding wilds don’t just substitute for symbols; they supercharge your gameplay by turning near-misses into big wins. These wilds transform ordinary spins into extraordinary moments. And with the chance to multiply your stake by as much as 5,000x, they’re not just thrilling—they’re potentially life-changing.

At AusCasinos, our team has spent countless hours diving into pokies with this standout feature. In this guide, we’ll break down exactly what expanding wilds are, how they work, and why they’re worth chasing. Plus, we’ll highlight our top five games with expanding wilds to get you spinning with confidence.

Let’s dive in!

What are Expanding Wilds?

Expanding wilds are a game-changing feature in online pokies, designed to super charge your payouts (sometimes as high as 5,000x your stake!).

Unlike regular wilds, which only substitute for other symbols, expanding wild symbols stretch to cover an entire reel, creating new winning combinations across multiple paylines. This transformation creates multiple opportunities for winning combinations across all active paylines, turning near-misses into rewarding payouts.

For instance, if an expanding wild appears on reel 2, it not only completes paylines horizontally but can also connect vertically with symbols on adjacent reels for bigger wins.

When triggered, expanding wilds light up the reels with vibrant visuals like glowing symbols or streaks of light. A dynamic sound effect, such as a sparkling hum, builds anticipation for the payout. In games like Starburst by NetEnt, they can lead to re-spins and create multiple chances for wins in a single sequence.

How Common Are Expanding Wilds?

The frequency of expanding wilds often comes down to a game’s volatility. Medium-volatility games like Starburst strike a balance, offering consistent wild appearances to keep you engaged. On the flip side, high-volatility pokies like Iron Bank make you work for it, but the reward can be well worth the wait.

To give you a clearer picture, we’ve rated the appearance rate of expanding wilds in our top recommended games. Keep reading to see which pokies offer steady excitement and which ones pack their wilds into thrilling, high-risk moments.

How Expanding Wild Symbols Work

Expanding wilds are among the most dynamic features in online pokies, offering thrilling opportunities to turn a single spin into a sequence of rewarding payouts.

What Triggers Expanding Wilds?

In most games, expanding wilds activate when a specific wild symbol lands on reels 2, 3, or 4—the prime spots for maximum payout potential. These reels connect with the greatest number of paylines, ensuring expanded wilds have the biggest impact. Depending on the game, this feature can be triggered during base gameplay (Starburst) or as part of a bonus round (Iron Bank). Understanding the game’s rules is key to knowing when to expect expanding wilds.

What Happens When They Activate?

Once triggered, the wild symbol stretches vertically, covering all positions on the reel. This expansion is accompanied by dramatic visuals—think glowing lights or cascading colors—and sound effects that amplify the excitement. In some pokies, like Starburst, the reel locks in place, awarding a re-spin. If another wild lands during the re-spin, the process repeats, creating a chain reaction of potential wins.

Why Do Players Love It?

The feature’s charm lies in its ability to turn near-misses into big wins. With every expansion, new paylines form, especially when high-value symbols align. For instance, aligning an expanding wild with symbols like bars in Starburst can lead to payouts up to 500x your stake. Whether you’re chasing jackpots or enjoying the spectacle, expanding wilds ensure every spin feels like a winning opportunity.

Our Top 5 Online Pokies With Expanding Wilds

Our goal at Auscasinos is always help our players stay ahead of the game. So, to ensure you avoid shoddy pokies, we’ve listed some of our absolute favourite pokies below. All feature an expanding wild feature, and you can play them at various online casinos in Australia.

1. Iron Bank

Released by Relax Gaming in 2020, Iron Bank offers a high-stakes heist adventure with a Cuban flair. Its expanding wilds feature shines in the game’s bonus rounds, adding layers of strategic excitement to its already volatile gameplay.

Aspect Details
Feature Trigger Activated during the bonus round when wild symbols land on designated reels.
Payout Potential Max win of up to 49,998x your stake with optimal symbol combinations.
Odds/Frequency Low frequency, as expanding wilds only appear in high-volatility bonus rounds.

Iron Bank’s volatility is also impacted by the bonus choice - with expanding wilds offering the riskiest option. 

Feature Mechanics:

Expanding wilds in Iron Bank activate during the second bonus round. Wild symbols land on designated reels and stretch vertically to cover the entire reel, amplifying winning combinations. This feature becomes especially lucrative when paired with sticky wilds, creating chained payouts and unlocking the game’s full win potential.

Visuals and Sounds:

The expanding wilds burst onto the reels as fiery crates, glowing with intensity. Accompanied by the crackle of flames and a suspenseful soundtrack, the feature immerses players in the high-risk, high-reward atmosphere of the game.

Payout Potential and Frequency:

Expanding wilds have a low frequency, appearing exclusively in bonus rounds. However, when they do, they can deliver wins up to a massive 49,998x your stake, particularly when combined with high-value symbols like cigars and safes.

Why It Stands Out:

Iron Bank stands out for its layered gameplay, where expanding wilds are part of a well-orchestrated bonus round strategy. The feature’s explosive visuals and rare but rewarding payouts make it a favorite for thrill-seeking players

2. Starburst

Launched by NetEnt in 2012, Starburst remains a staple of online pokies thanks to its iconic expanding wilds. This feature is at the heart of its gameplay, delivering dazzling visuals and frequent re-spin opportunities that keep players hooked.

Aspect Details
Feature Trigger Triggered when the Starburst symbol lands on reels 2, 3, or 4.
Payout Potential Max win of 500x your stake during a single spin sequence.
Odds/Frequency Moderate frequency, with expanding wilds appearing regularly during base gameplay.

Starburst is still one of the most played online pokies games worldwide.

Feature Mechanics:

Expanding wilds in Starburst are triggered when the radiant starburst symbol lands on reels 2, 3, or 4. Once activated, the wild expands to cover the entire reel, locks in place, and awards a free re-spin. If another wild lands during the re-spin, the process repeats, creating chain reactions for big payouts.

Visuals and Sounds:

The starburst wild bursts onto the reels with a vibrant explosion of pink, green, and blue, accompanied by shimmering chimes. The locking reel animation and glowing effects heighten the anticipation of chaining wins.

Payout Potential and Frequency:

Expanding wilds appear with moderate frequency, making them a consistent source of excitement. Players can achieve payouts up to 500x their stake by aligning high-value symbols like sevens and bars alongside wild reels.

Why It Stands Out:

What sets Starburst apart is the simplicity and frequency of its expanding wilds. Unlike many games that tie such features to bonus rounds, Starburst delivers action directly in the base game, ensuring every spin feels rewarding.

3. Ariana

Dive into a mystical underwater world with Microgaming’s Ariana. This visually stunning pokie combines serene themes with a powerful expanding wilds feature that offers consistent opportunities for mid-tier payouts.

Aspect Details
Feature Trigger Triggered when the Ariana symbol lands on reel 1 during a winning spin.
Payout Potential Max win of 240x your stake in a single spin sequence.
Odds/Frequency Medium frequency, with expanding wilds appearing regularly in both the base game and free spins round.

While the mermaid theme isn’t unique, the expanding wilds in Ariana are well worth a visit.

Feature Mechanics:

The expanding wilds in Ariana activate when the shimmering Ariana symbol lands on reel 1 during a winning spin. The wild stretches vertically to cover the entire reel, connecting with adjacent reels to form new paylines.

Visuals and Sounds:

Expanding wilds light up the reels with glowing oceanic blues and silvers, creating a magical underwater glow. The accompanying soundscape includes soft aquatic chimes, enhancing the immersive experience.

Payout Potential and Frequency:

With a maximum win of 240x your stake, Ariana offers steady payout opportunities. Expanding wilds appear with medium frequency in both the base game and free spins round, making them accessible and rewarding.

Why It Stands Out:

Players love how Ariana ties its expanding wilds seamlessly into the underwater theme. The consistent appearance of the feature ensures a balanced and engaging gameplay experience, perfect for players seeking moderate risk and steady rewards.

4. Jack and the Beanstalk

NetEnt’s Jack and the Beanstalk brings the classic fairy tale to life with innovative mechanics, including walking expanding wilds. This feature adds a dynamic, strategic layer as players climb the reels for treasure.

Aspect Details
Feature Trigger Triggered when a wild symbol lands anywhere on the reels.
Payout Potential Max win of 3,000x your stake with optimal wild alignments.
Odds/Frequency High frequency during free spins, offering consistent bonus opportunities.

Jack and the Beanstalk is a high volatility slot with plenty of action.

Feature Mechanics:

Walking expanding wilds activate when the shimmering golden key lands on any reel. These wilds expand vertically and then "walk" across the grid, shifting one reel to the left with each spin. The journey continues until the wild moves off the screen, offering cascading opportunities for payouts.

Visuals and Sounds:

Expanding wilds erupt with golden light as they stretch across the reel, accompanied by a whimsical melody that mirrors the storybook theme. Each step is marked by magical chimes, building anticipation as the wilds traverse the reels.

Payout Potential and Frequency:

The feature peaks during free spins, where walking wilds align with treasure symbols to deliver wins up to 3,000x your stake. With a high frequency in bonus rounds, this mechanic keeps the action engaging.

Why It Stands Out:

Jack and the Beanstalk excels with its walking wilds, which combine expanding mechanics with a unique grid traversal. The feature’s strategic pacing and stunning animations make every spin feel like a step toward treasure.

5. Hot Shots 2

iSoftBet’s Hot Shots injects soccer excitement into online pokies, complete with animated animal athletes and fiery expanding wilds that can light up the reels for big wins.

Aspect Details
Feature Trigger Activated when the Hot Shots ball lands anywhere on the reels.
Payout Potential Max win of 500x your stake with optimal symbol alignments.
Odds/Frequency Medium frequency, with heightened occurrences during free spins.

Volatility in Hot Shots 2 is rated high, favouring players with a larger bankroll that like a riskier pokie.

Feature Mechanics:

The expanding wilds in Hot Shots trigger when the flaming soccer ball symbol lands anywhere on the grid. The wild stretches vertically, covering the reel, and connects with animal player symbols to form high-value combinations. The feature is especially impactful during the free spins round, where it triggers more frequently.

Visuals and Sounds:

Expanding wilds erupt in fiery animations, with the soccer ball blazing across the reel. Stadium cheers and energetic sound effects enhance the feeling of scoring a goal with each activation.

Payout Potential and Frequency:

With a maximum win of 500x your stake, Hot Shots balances medium volatility with frequent expanding wild triggers, especially during bonus rounds. Aligning wilds with premium symbols like the lion striker can deliver substantial payouts.

Why It Stands Out:

The dynamic visuals and immersive stadium atmosphere make Hot Shots a standout. The expanding wilds replicate the thrill of a last-minute goal, keeping players engaged with every spin.

Types of Expanding Wilds

Expanding wilds usually come in a few different forms, with some offering higher pay outs than others.

Here are some of the most common types we’ve come across while playing pokies online.

Multiplier Expanding Wilds

These wilds expand and multiply your winning payouts, potentially giving you some big wins. Depending on the pokie you’re playing, the multiplier value can vary. The average payout is generally high.

Sticky Expanding Wilds

The wilds are ‘sticky’, which means they stay expanded and can trigger additional wins.
The amount of sticky wilds and their positions can vary. And the payout rate ranges between medium to high.

One Reel Expanding Wild

These wilds expand to cover the entire reel, boosting your chances of forming a winning combination. But it's important to note that the wild may not expand if it lands on a specific reel. Their payout rate is typically medium.

Mini Expanding Wild

With a mini wild, small wilds expand to cover adjacent reel positions. The number of mini wilds and their patterns for expanding can vary. And the payout rate is usually low to medium.

Random Expanding Wilds

Wilds randomly expand during the spin, adding an element of surprise and excitement.
The timing and positions of the expanding wilds are unpredictable. The payout average for these wilds is low to medium.

Transforming Expanding Wilds

These types of expanding wilds transform into other symbols. These transformed symbols can be limited to specific symbols. Payout rates for these wilds are typically medium.

Cluster Expanding Wilds

Wilds form clusters by expanding and connecting to other wilds, which can trigger more wins. Although clusters and their formations can vary, payout averages are high for these types of wilds.

Chain Reaction Expanding Wilds

These wilds trigger a chain reaction by expanding and causing nearby symbols to also expand. The chain reaction can stop after it reaches a certain number of steps. The payout average is high for these wilds.

Other Pokie Features

Conclusion

Expanding wilds are just one of many features in a pokie.

While not every online pokies game will offer expanding wilds, there are plenty that do. You'll find them in games from some of the world’s top software developers. So you can be guaranteed to find high-quality graphics, sound and a fun gaming experience.

Like all other symbols, expanding symbols aren't guaranteed to give you a win. So make sure that you're enjoying the thrill of the game rather than just chasing the cash. We recommend trying out a few games in demo mode before working out which one's right for you.

Enjoy!

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Ryan Anderson
Ryan Anderson Pokies Expert
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Ryan is our resident pokies expert. Not only does he provide readers with the latest insights, innovations and technology news related to pokies, but he also knows all there is to know about pokies game developers.

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Last updated: 12 December 2024
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