Bonanza Billion

Bonanza Billion is an important release in the history of BGaming: it was the developer’s first slot built around Refilling Reels. Released in December 2021, it combines a 6x5 Pays Anywhere grid with fruit symbols, Free Spins and additive multipliers worth up to x100.

The game does not use paylines or require connected clusters. Wins are based on landing at least eight identical symbols anywhere on the grid. Those symbols disappear after paying, allowing new icons to drop into their positions and potentially produce another result.

I rate Bonanza Billion 4.1 out of 5. Its rules are clear and the bonus offers meaningful multiplier potential, but newer BGaming releases have expanded this formula with more varied features.

Bonanza Billion Slot Details

BGaming may provide alternative mathematical configurations to operators. Players should verify the RTP, stake range and bonus conditions in the information panel of the version they intend to use.

Theme and Presentation

Bonanza Billion takes place in a surreal fruit-filled world rather than a conventional orchard. Melons, citrus fruits and cherries fall across a colourful landscape alongside hearts, stars and polished gemstones.

The visual style is deliberately bright and exaggerated. Fruit symbols occupy the lower part of the paytable, while the premium icons use stronger colours and more detailed shapes, making large matching groups easy to identify.

The soundtrack follows a playful arcade direction. Short effects accompany every refill, while the audio becomes more intense when the game approaches a Free Spins trigger or multiplier-enhanced win.

How Pays Anywhere Works

Bonanza Billion has no fixed paylines. A win is created when at least eight matching regular symbols appear anywhere on the 30-position grid.

The symbols do not need to touch, start on the first reel or occupy adjacent columns. The game counts every matching icon visible in the result:

• 8 or 9 matching symbols award the first paytable value;
• 10 or 11 matching symbols produce a larger payout;
• 12 or more matching symbols award the highest value for that icon.

This mechanic is sometimes described as Cluster Pays, but Pays Anywhere is more accurate because connected groups are not required.

Symbols and Payout Values

The lower-paying symbols are cherries, oranges, lemons, plums and watermelons. Hearts and stars form the middle section of the paytable, while blue and green gemstones provide the largest regular-symbol awards.

For groups of 12 or more symbols, the published values are:

• Green gem: 50x the stake;
• Blue gem: 25x;
• Star: 15x;
• Heart: 12x;
• Watermelon: 10x;
• Plum: 8x;
• Lemon: 5x;
• Orange: 4x;
• Cherries: 2x.

The game does not use a conventional Wild symbol. Its main special icons are the Free Spins Scatter and the multiplier symbol that appears during the bonus.

Refilling Reels

Every winning result starts the Refilling Reels feature. The matching symbols disappear, the remaining icons fall into the empty positions and new symbols enter from above.

The new arrangement is evaluated immediately. If it contains another group of at least eight matching symbols, an additional win is awarded and the refill process repeats.

There is no stated limit on the number of consecutive refills. The sequence finishes when no new winning combination appears, after which its accumulated payout is credited.

Only the initial spin costs a stake. Every refill belongs to the same game round, although the symbols produced by each drop remain random.

Free Spins Trigger

The rainbow-coloured Scatter can appear anywhere on the grid. The number of Scatters in the triggering result determines the initial length of the bonus:

• 4 Scatters award 10 Free Spins;
• 5 Scatters award 20 Free Spins;
• 6 Scatters award 30 Free Spins.

The Scatters also provide direct base-game awards. Four pay 3x the stake, five pay 5x and six pay 100x.

During Free Spins, three additional Scatters award five extra spins. Bonus Scatters act as retrigger symbols rather than ordinary paying icons.

Multiplier Symbols

Multiplier symbols appear exclusively during Free Spins. Each receives a random value between x2 and x100 and remains visible until the current Refilling Reels sequence ends.

If several multiplier symbols are present, their values are added together. The resulting total is applied to the complete accumulated win from that sequence.

For example:

• x2 and x5 produce a combined x7 multiplier;
• x10 and x25 produce a combined x35 multiplier;
• x20, x50 and x100 produce a combined x170 multiplier.

The values are not multiplied by one another. An x10 symbol and an x25 symbol create x35 rather than x250.

A multiplier has no independent payout. If the Free Spin fails to produce eight or more matching regular symbols, the visible multiplier does not generate a win.

How Long Multipliers Remain

A multiplier stays on the grid while the current refill sequence continues. New multiplier symbols can appear during later drops in the same sequence and join the accumulated total.

Once the sequence finishes, all multiplier symbols reset. Their values do not carry forward to the next Free Spin or accumulate throughout the entire bonus.

This makes long winning sequences especially important. They provide more symbol drops and additional opportunities for multiplier values to enter before the final bonus win is calculated.

Chance x2

Chance x2 is an optional mode that increases the cost of each base-game spin while raising the probability of landing the four Scatters needed for Free Spins.

The function improves the mathematical trigger frequency but does not guarantee a bonus within a particular number of rounds. It also increases the amount at risk on every spin.

Chance x2 cannot be active at the same time as Bonus Buy. Enabling one option disables the other.

Bonus Buy

The Bonus Buy feature provides direct access to Free Spins in jurisdictions where paid bonus entry is allowed. Its price automatically changes with the selected base stake.

The purchase window should display the exact cost and conditions before confirmation. Buying the feature starts the bonus but does not guarantee that multiplier symbols or profitable winning groups will appear.

A purchased bonus can return less than its price. The feature remains governed by the same random game engine as a naturally triggered round.

RTP and Volatility

BGaming currently publishes an RTP of 95.97%. Casino catalogues commonly round this figure to 96%, while some operators may offer alternative versions with a lower percentage.

The provider’s current product information uses a broad Low-High volatility label in its technical field, while its FAQ and most casino configurations describe the game as highly volatile. For practical assessment, I treat Bonanza Billion as a high-volatility slot.

RTP represents a theoretical result calculated over a very large number of rounds. It does not predict the return from an individual spin or session.

Maximum Win

Bonanza Billion has a maximum win of 15,000x the total stake. This limit applies to the complete game round, including its initial result, refills and any Free Spins multiplier.

The maximum figure does not reveal its probability. Raising the bet changes the monetary amount of a payout but does not make the maximum multiplier or a particular symbol combination more likely.

What I Like About Bonanza Billion

• It introduced Refilling Reels to BGaming’s slot catalogue.
• The Pays Anywhere rules are simple to understand.
• One paid spin can produce an unlimited sequence of refills.
• Five and six Scatters award 20 and 30 Free Spins.
• Three bonus Scatters add five extra spins.
• Multiplier symbols range from x2 to x100.
• Multiple multiplier values are added together.
• The maximum win reaches 15,000x the stake.

Potential Drawbacks

• The base game has no major modifier beyond Refilling Reels.
• The fruit theme is visually polished but not original.
• Multiplier symbols appear only during Free Spins.
• Multipliers reset between separate bonus spins.
• A multiplier has no value without a regular symbol win.
• The 0.20 to 12 betting range is relatively narrow.
• High volatility can create substantial short-term balance swings.

Comparison with Other BGaming Slots

Beer Bonanza uses almost the same mathematical structure, including a 6x5 Pays Anywhere grid, Refilling Reels and x2 to x100 bonus multipliers. Its main distinction is the Oktoberfest theme.

Carnival Bonanza adds a medieval festival setting and its own presentation to the broader BGaming formula. Players interested in the original framework may find Bonanza Billion easier to understand.

The game can also be compared with Sweet Bonanza, although the two titles use different paytables, RTP settings and Free Spins awards.

Who Might Enjoy Bonanza Billion?

I see Bonanza Billion as a suitable option for players who enjoy straightforward Pays Anywhere games and want Free Spins where several multiplier symbols can combine during one sequence.

It may be less appealing to players looking for complex base-game modifiers, persistent multipliers or a wide betting range. Newer cascade slots also offer more elaborate alternatives to the same core formula.

Final Verdict

Bonanza Billion is mechanically simple, but its importance as BGaming’s first refilling-reel slot gives it a clear place in the developer’s catalogue. The combination of fruit symbols, unlimited cascades and multiplier-based Free Spins remains functional and easy to follow.

The bonus is the central attraction, especially when multiple x2 to x100 symbols appear during a profitable refill sequence. Outside Free Spins, however, the base game can feel repetitive.

Taking its historical importance, 15,000x maximum and limited base-game variety into account, my final rating is 4.1 out of 5. More related releases can be found in the Bonanza slots catalogue.

Bonanza Billion is a random game intended for adults. Treat every stake as entertainment expenditure, establish firm spending and time limits, and never borrow money or chase losses.

Bonanza Billion In Comparison Table