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Expansion! Review

Introducing "Expansion!" – a thrilling new slot game brought to you by Betsoft, set to captivate players from the moment they hit the spin button. Released on February 23, 2023, this dynamic slot promises an exhilarating gaming experience.

Expansion! Review

With an RTP of 94.02% and medium volatility, "Expansion!" offers a balanced mix of risk and reward. Players can venture into this captivating world with bets ranging from 0.30 to 300, catering to both casual gamers and high rollers.

The game's five reels are teeming with features to keep players engaged. Expect the unexpected with Additional Free Spins, a Buy Feature, Free Spins, Free Spins Multipliers, Mystery symbols, and the excitement of Random Wilds and Additional Wilds. The game's RTP range adds an extra layer of unpredictability, while Scatter symbols and Wilds add to the thrill.

Perhaps the most enticing aspect is the opportunity to win up to x2171.00 your bet, making every spin a potential game-changer. "Expansion!" is poised to become a fan favorite among slot enthusiasts, offering an immersive gaming experience with a myriad of features and a chance for big wins.

Expansion! Features

"Expansion!" boasts an impressive array of exciting features, including Additional Free Spins, Buy Feature, Free Spins, Free Spins Multiplier, Mystery symbol, Random Wilds / Additional Wilds, RTP range, Scatter symbols, and Wilds, making it a slot game brimming with thrilling options for players to enjoy. With such a diverse range of features, it's safe to say that "Expansion!" is a slot that offers an abundance of cool and engaging gameplay elements.

Additional Free Spins

This feature enhances the gameplay by providing players with extra opportunities to spin the reels without having to place additional bets. Once triggered, the Additional Free Spins feature grants you a certain number of free spins. This number can vary depending on the game's rules and the triggering conditions. During the Additional Free Spins, you can spin the reels without deducting any funds from your balance. The game's paytable and features remain the same as in the base game, giving you a chance to win just as you would during regular spins.

Buy Feature

It allows players to purchase direct access to a bonus feature or free spins round rather than waiting for it to trigger naturally during regular gameplay. In the "Expansion!" slot, players will usually see a prominent button or feature on the game interface that says "Buy Feature" or something similar. It's often located next to the regular spin button. Clicking on the Buy Feature button will display the cost required to activate it. This cost is typically expressed in terms of a multiple of your current bet. For example, it might cost 50x your bet to buy the feature. If you decide to proceed and pay the cost, the Buy Feature is immediately activated, and you're taken directly to the bonus round or special feature associated with it. In the case of "Expansion!" slot, this could be a bonus round with unique gameplay or a free spins round with enhanced features.


It offers players the chance to spin the reels without wagering their own money while potentially winning real rewards. Once triggered, you'll be awarded a predetermined number of free spins. The number of free spins you receive can vary from game to game and is often influenced by the number of Scatter symbols you land. In some slots, you might also have the opportunity to win additional free spins within the Free Spins round. During the Free Spins round in "Expansion!", there may be enhancements to the gameplay compared to the base game. These enhancements can include higher multipliers for wins, additional Wild symbols, or special features like expanding or stacked symbols. These elements can significantly boost your winning potential.

FreeSpins Multiplier

It enhances the Free Spins round by applying a multiplier to your winnings, potentially leading to more substantial payouts. Once you're in the Free Spins round, the FreeSpins Multiplier feature will come into play. This feature applies a multiplier to your winnings for each winning spin during the Free Spins. The multiplier values can vary depending on the game's design but are typically represented as 2x, 3x, 4x, or even higher. The exciting aspect of the FreeSpins Multiplier is that it can accumulate over multiple winning spins. For example, if you have a 3x multiplier and you win on the next spin, your winnings for that spin will be multiplied by 3. If you win again on the following spin, your winnings will be multiplied by the current multiplier, and so on.

Mystery symbol

Mystery symbols are special icons that can land on the slot's reels during the base game or bonus rounds. These symbols are usually represented as question marks or with some mysterious design, indicating their enigmatic nature. When Mystery symbols land on the reels, they act as placeholders for other symbols in the game. Once they land, they transform into a random regular symbol, excluding Scatter symbols or other special symbols. This transformation occurs simultaneously for all Mystery symbols that appear on the same spin. The transformation of Mystery symbols can lead to the creation of winning combinations. If the revealed regular symbols align in a way that results in a winning payline, you'll receive the corresponding payout.

Random Wilds / Additional Wilds

In the case of Random Wilds, the feature will add wild symbols to the reels in random positions. These wilds can appear on any reel and any row, and their placement is entirely unpredictable. They may land on one spin or multiple spins during the feature activation. Additional Wilds, on the other hand, typically involve adding more wild symbols to the reels during a particular spin or set of spins. This can result in an increased number of wild symbols appearing on the screen, enhancing your chances of forming winning combinations. The addition of Random Wilds or Additional Wilds can significantly boost your win potential during a spin. If these wilds land in strategic positions, they can create multiple winning combinations on a single spin, resulting in substantial payouts.

Scatter symbols

Scatter symbols are special symbols that typically trigger various bonus features or free spins rounds when a certain number of them land on the reels. They are usually not bound by paylines and can appear anywhere on the screen. In "Expansion!" and other slot games, when you land a specified number of Scatter symbols, it often activates a particular bonus feature. This can include Free Spins rounds, bonus games, or multipliers, depending on the slot's design. One of the most common outcomes of landing Scatter symbols is the activation of Free Spins. When this happens, you are rewarded with a predetermined number of free spins, and these spins are usually played with special enhancements, such as increased multipliers or additional Wild symbols.


Wild symbols are special icons that act as substitutes for other regular symbols in the game. When a Wild symbol lands on the reels, it can take on the value of any symbol required to complete a winning payline. The presence of Wild symbols can significantly enhance your chances of forming winning combinations. They can turn losing spins into winners and boost the value of your wins when they participate in a combination. Some slots, including "Expansion!", may feature different types of Wild symbols, such as expanding Wilds that cover entire reels, sticky Wilds that stay in place for multiple spins, or shifting Wilds that move across the reels during each spin.

Expansion! Unique Features

One of its standout features is the Mystery symbol. These enigmatic symbols, when they appear on the reels, transform into random regular symbols, adding an element of surprise and the potential for unexpected winning combinations. "Expansion!" also offers Free Spins rounds with multipliers, allowing you to win extra spins and boost your chances of securing substantial payouts during this bonus feature. The game keeps players on the edge with the Random Wilds and Additional Wilds feature. These wild symbols can pop up at any moment, substituting for other symbols and leading to thrilling, unexpected wins. For those who crave immediate access to the game's bonus features, "Expansion!" provides a Buy Feature option. This allows you to purchase entry into the Free Spins round or other special features.

Expansion! Winning symbols

Star Symbol shines brightly, offering rewards ranging from x150 to an impressive x1000 for a max bet of 300. Landing these stars can light up your gameplay with substantial wins.

Expansion! Winning symbols

The planet adorned with a ring is another high-paying symbol in "Expansion!" It awards players with payouts ranging from x120 to x800 when betting the maximum of 300 credits. This symbol adds a touch of cosmic grandeur to your winning potential.
Brown, Purple, and Green Planets bring a burst of color to the reels and offer rewards ranging from x100 to x400 for a max bet of 300. While not as high-paying as some other symbols, they still contribute to the excitement of the game.
The Planet Scatter symbol is a key element in triggering bonus features. It can appear on all reels, making it an essential symbol for unlocking Free Spins rounds and other exciting in-game bonuses.
Represented by the Wild symbol, this icon has the power to substitute for other symbols on the reels, with the exception of the Scatter symbol. Its versatility increases your chances of forming winning combinations, making it a valuable addition to your spins.

Expansion! Sound & Gameplay

The audio in "Expansion!" complements the UFO theme exceptionally well. As you spin the reels, you'll be treated to an otherworldly soundtrack that includes mysterious and futuristic tones. The sound effects during wins and special feature activations add to the excitement, with a blend of cosmic and electronic sounds that give the game a unique atmosphere. The auditory experience in "Expansion!" is designed to transport players into the world of extraterrestrial mysteries, enhancing the overall immersion. "Expansion!" offers gameplay that aligns seamlessly with its UFO theme. The reels are adorned with vivid and beautifully designed symbols, including stars, planets, and UFOs. The animations are smooth, and the graphics are crisp, contributing to a visually appealing and polished gaming experience.

Expansion! Mobile compatibility

Whether you're using an iOS or Android device, you can access the game seamlessly through your preferred mobile browser. The user interface is responsive and intuitive, making it easy to navigate the game's controls and features using touchscreens. This mobile adaptation ensures that you can embark on your cosmic adventure, trigger bonus features, and chase big wins no matter where you are. On the other hand, if you prefer the larger screen and immersive experience of desktop gaming, "Expansion!" is equally accessible on desktop computers and laptops. The game maintains its high-quality graphics and engaging gameplay when played on a larger display, offering players the option to explore the mysteries of the universe from the comfort of their home.

Expansion! Big wins

Maximum Win Scenario for the Star Symbol:

The Star symbol awards payouts ranging from x150 to x1000 for a max bet of 300 credits.
To achieve the maximum win with the Star symbol, you would need to land five of these symbols on a payline during a single spin while betting the maximum of 300 credits.
Maximum Win = 300 (bet) * 1000 (multiplier) = 300,000 credits.
Maximum Win Scenario for the Planet with the Ring Symbol:

The planet with the ring symbol awards payouts ranging from x120 to x800 for a max bet of 300 credits.
To reach the maximum win with the planet and ring symbol, you'd need to land five of them on a payline during one spin while betting the maximum.
Maximum Win = 300 (bet) * 800 (multiplier) = 240,000 credits.
Maximum Win Scenario for Brown, Purple, and Green Planets:

These colorful planets offer rewards ranging from x100 to x400 for a max bet of 300 credits.
To achieve the maximum win with one of these symbols, you'd need to land five of the same planet symbol on a payline while betting the maximum.
Maximum Win = 300 (bet) * 400 (multiplier) = 120,000 credits.

Expansion! Pros & Cons


  • Medium volatility strikes a balance between frequent smaller wins and occasional larger payouts, catering to a variety of playing styles.
  • Generous maximum win of x2171.00, providing the opportunity for substantial payouts.
  • A wide bet range from 0.30 to 300 credits accommodates both casual players and high rollers.
  • A feature-rich gameplay experience with Additional Free Spins, Buy Feature, Free Spins, Free Spins Multiplier, Mystery symbol, and Random Wilds/Additional Wilds, offering diverse and engaging mechanics.
  • The presence of Scatter symbols and Wilds enhances the potential for creating winning combinations.


  • The RTP of 94.02% is slightly lower than some other slots, which might affect long-term returns for some players.

Expansion! Alternatives

  • Back To Venus
  • It Came From Venus 
  • Arrival 


Expansion! by Betsoft is a cosmic adventure that offers a thrilling gaming experience. With its medium volatility, players can anticipate a balance between frequent wins and the exhilaration of chasing substantial payouts, including the impressive x2171.00 maximum win. The diverse range of features, including Additional Free Spins, Free Spins Multiplier, Mystery symbols, and Random Wilds, adds depth and excitement to the gameplay. While the Buy Feature may come at an extra cost, it offers a shortcut to the game's enticing bonus rounds. Whether you're captivated by the UFO theme or enticed by the prospect of cosmic wins, "Expansion!" invites players to explore the mysteries of the universe while enjoying a feature-rich and mobile-friendly gaming experience.




Leo Harris

Last Updated: Oct 05, 2023

Leo Harris is a respected author and expert at With a passion for online slot games, Leo thoroughly tests and reviews the latest titles, providing valuable insights to players. His comprehensive evaluations cover gameplay, graphics, and overall entertainment value, helping readers make informed choices. Leo's captivating writing style and industry expertise have earned him a loyal following, making him a trusted voice in the online gambling community.

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To trigger Free Spins, you need to land a specific number of Planet Scatter symbols on the reels. The exact number required may vary within the game.

The Buy Feature allows you to purchase direct access to bonus rounds like Free Spins. It comes at an additional cost, but it can save you time and increase your chances of triggering exciting features.

Indeed, "Expansion!" offers a Mystery symbol that transforms into random symbols, adding unpredictability to the gameplay. It also includes Random Wilds, which can appear at any time for surprise wins.

Absolutely! "Expansion!" is fully optimized for mobile play, ensuring you can enjoy the game on your smartphone or tablet.

While Planet Scatter symbols primarily trigger Free Spins, in some slots, they can unlock other bonus features as well. It's essential to check the game's specific rules for details.