Bone Bonanza

Bone Bonanza is a high-volatility Pays Anywhere slot released by BGaming on 14 September 2023. Rather than presenting a conventional horror story, the game celebrates Día de los Muertos through colourful Mexican imagery, decorated skulls, music and the La Catrina character.

Its central feature is a level-based Free Spins round. Winning with previously unused symbols advances a 15-level progress bar and unlocks stronger Multiplier symbols worth up to 100x. My rating for Bone Bonanza is 4.3 out of 5. I like the sense of progression in the bonus, although the base game is considerably simpler and the high volatility can produce uneven sessions.

Bone Bonanza Slot Details

Bet limits, feature prices and certified RTP settings can vary between operators. Players should verify the applicable figures in the information panel of the version they open.

Día de los Muertos Theme

Bone Bonanza is festive rather than frightening. The action takes place in a brightly decorated Mexican village filled with candles, papel picado, flowers and traditional ornaments. La Catrina, one of the best-known figures associated with Día de los Muertos, appears as the game's Scatter.

The premium symbols include a decorated green skull, a moustached bottle, a golden sun and maracas. Colourful gemstones occupy the lower side of the paytable. This symbol set gives the game a coherent identity without relying on generic card ranks.

The upbeat vihuela-led soundtrack reinforces the celebratory mood. Refills and multiplier appearances receive clear audio cues, while the progress bar remains visible beside the grid throughout Free Spins.

How Pays Anywhere Wins Work

Bone Bonanza does not use traditional paylines. Regular payouts are formed by landing at least eight matching symbols anywhere on the 6x5 grid. They do not need to touch or occupy consecutive reels.

The paytable contains three standard quantity tiers:

• 8–9 matching symbols: the first payout tier
• 10–11 matching symbols: an increased payout
• 12 or more matching symbols: the highest regular tier

The number of matching symbols and their individual paytable value determine the result. Premium Día de los Muertos symbols generally pay more than the coloured gemstones.

This is best described as Pays Anywhere rather than conventional cluster pays. A cluster system normally requires matching symbols to connect, whereas Bone Bonanza counts them regardless of their positions.

Refilling Symbols

After a winning group has been paid, all participating symbols disappear. The remaining icons fall into the empty positions, and new symbols enter from above.

If the refill forms another valid group, the new payout is added and the grid refills again. The sequence continues until no additional win appears. BGaming does not impose a fixed limit on the number of refills resulting from a single paid spin.

Refilling can create several consecutive wins, but there is no growing base-game multiplier. A cascade can finish after its first payout, and previous sequences do not affect the probability of future spins.

Scatter Symbol

La Catrina is the Scatter and can appear on any reel. Scatter payouts are evaluated independently of regular Pays Anywhere combinations.

Four or more La Catrina symbols landing in the base game trigger Free Spins. The number of triggering Scatters determines the initial number of awarded spins.

The official feature set does not include a conventional Wild symbol. La Catrina activates the bonus but does not substitute for regular symbols.

Free Spins

The Free Spins awards are structured as follows:

• 4 Scatters: 10 Free Spins
• 5 Scatters: 20 Free Spins
• 6 Scatters: 30 Free Spins

The bonus can be extended. Landing three or more Scatters in one Free Spin adds five spins to the remaining total.

Pays Anywhere wins and unlimited refills remain active throughout the feature. Multiplier symbols and the 15-level Progress Bar are added, giving the bonus a more developed structure than the base game.

How the Progress Bar Works

Free Spins begin at level 0. The available Multiplier values become stronger as the player advances through the Progress Bar.

A level increase occurs when a winning combination contains a regular symbol that has not previously produced a win during the current bonus:

• A new winning low-value symbol increases the level by one.
• A new winning premium symbol increases the level by two.
• The Progress Bar can reach level 15.

Only the first qualifying win for each symbol type advances the bar. Repeated wins with a symbol already recorded during the bonus do not provide another level increase.

This gives the feature a clear objective: wins involving a broad selection of symbols are more useful for progression than repeatedly landing the same icon.

Multiplier Symbols

Multiplier symbols appear exclusively during Free Spins. Their possible values range from 2x to 100x, with the active Progress Bar level determining which values can appear.

If several Multiplier symbols land in one spin, their values are added together. The combined result is then applied to that spin's win.

For example, visible Multiplier symbols of 5x, 10x and 25x would create a combined 40x multiplier. The values do not multiply one another.

These are special Multiplier symbols rather than Multiplier Wilds. They do not substitute for regular icons, and the bonus multiplier does not automatically increase after every refill.

Chance x2

Chance x2 increases the cost of a base-game spin and improves the probability of triggering Free Spins. It does not double regular payouts, progress-bar movement or Multiplier values.

The feature cannot be used while Buy Bonus is active. Chance x2 may also be unavailable in regulated markets that restrict enhanced-chance bets.

Buy Bonus

Where permitted, Buy Bonus provides direct access to the Free Spins round for the price displayed in the game interface. The purchase cost adjusts when the selected stake changes.

A purchased bonus follows the same level and multiplier rules as a naturally triggered feature. It does not guarantee progression to level 15, a 100x Multiplier symbol or a profitable outcome.

RTP and Volatility

Bone Bonanza has a published theoretical RTP of 96%. Separate RTP figures may apply when Chance x2 or Buy Bonus is used, while operators can offer alternative certified configurations.

RTP is calculated over a very large number of rounds. It should not be interpreted as the percentage that an individual player will recover from a particular deposit or session.

The volatility is high. Modest base-game refill sequences can occur, but much of the larger mathematical potential depends on entering Free Spins, advancing the Progress Bar and landing Multiplier symbols alongside qualifying wins.

Maximum Win

The maximum advertised payout is 14,134x the total bet. The applicable round ends or is capped when that limit is reached.

This figure represents the game's mathematical ceiling rather than a likely result. Outcomes approaching the maximum are exceptionally rare and should never be used as a reason to increase stakes.

What I Like About Bone Bonanza

• The Día de los Muertos theme is colourful and culturally recognisable.
• The Pays Anywhere rules are easy to understand.
• Unlimited refills can produce several wins from one spin.
• Free Spins provide up to 30 initial rounds.
• The 15-level Progress Bar creates visible bonus progression.
• Several Multiplier values can be added together in one spin.

Potential Drawbacks

• High volatility can produce extended periods of limited returns.
• There is no conventional Wild symbol.
• Multipliers are unavailable in the base game.
• Repeated wins with an already recorded symbol do not advance the Progress Bar.
• The 100x Multiplier level does not guarantee that a valuable win will accompany it.
• Chance x2 and Buy Bonus increase the amount placed at risk.

How Bone Bonanza Differs from Carnival Bonanza

Bone Bonanza and Carnival Bonanza use closely related mechanics. Both combine Pays Anywhere wins, refilling symbols and a 15-level Free Spins meter that unlocks stronger multipliers.

The principal distinction is thematic. Bone Bonanza uses a Mexican Día de los Muertos celebration, while Carnival Bonanza takes place at a medieval fantasy fair. Their maximum payouts also differ slightly.

Who Should Try Bone Bonanza?

I consider Bone Bonanza best suited to players who enjoy high-volatility scatter-pay games and bonus rounds with visible progression. The broad symbol-count payout system is accessible, while the level mechanic adds something to monitor beyond the next refill.

Players seeking base-game multipliers, traditional paylines or a Wild-heavy feature may prefer another release from the slot catalogue.

Final Verdict

Bone Bonanza is one of BGaming's more distinctive takes on its established Bonanza structure. The base game remains simple, but the Free Spins meter rewards variety among winning symbols and gives stronger Multiplier values a clear progression path.

The colourful presentation is far removed from the grim graveyard theme suggested by the title. Its real identity comes from Día de los Muertos, lively music and an energetic festival atmosphere.

My final assessment is 4.3 out of 5. Bone Bonanza offers an engaging bonus system, but its high volatility demands sensible limits. Treat gambling as paid entertainment, use only money you can afford to lose and never chase previous losses.

Bone Bonanza In Comparison Table