Bone Bonanza Slot Review

Bone Bonanza joins a pay-anywhere format to a Free Spins progression system. Winning symbols disappear and the field refills until no further combination forms; during the bonus, wins from symbol types not yet seen raise a level that controls the value of Multiplier symbols. The distinction between new and previously winning symbols is central: the level does not simply advance with every payout, but responds to symbol variety within that Free Spins round.

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Bone Bonanza at a glance

Provider	BGaming
Genre / theme	Animals
Game type	Video slot
Reference RTP	96%
Volatility	High
Payout mechanic	Pays anywhere; matching-symbol total on screen determines win
Release date	14 September 2023
Main features	4/5/6 Scatters award 10/20/30 Free Spins; 3+ during the bonus add 5. First low/high symbol-type wins raise level +1/+2 to 15; ×2–×100 symbols sum per winning spin.

RTP and stake limits can vary by version and market. Check the information screen in the game you open. Maximum win is a ceiling, not an expected result.

Count symbols across the field, then refill

The listing describes pays-anywhere wins: the total number of matching symbols on screen at the end of a spin determines the payout value. After a result, winning symbols are removed, remaining symbols fall, and new ones fill the spaces. Refilling continues until no additional combination appears, with no fixed maximum number of refills stated. All wins from a base spin are credited after its refill sequence finishes. The observed information does not provide the reel dimensions, so the field geometry should not be inferred from the refill description.

Four, five, or six Scatters trigger 10, 20, or 30 Free Spins respectively. Three or more Scatters during Free Spins award five extra spins. Scatters can appear on any reels and pay in any place. In the bonus, the level begins at zero and rises when a symbol type wins for the first time in that round: low symbols add one level and high symbols add two, with level 15 as the cap. A win by a type already seen does not satisfy the stated first-win condition, so repeated success from one symbol type alone does not keep advancing the level.

Level controls the bonus multipliers

Multiplier symbols appear only during Free Spins. Their values range from ×2 to ×100 and are determined by the current level. If more than one lands in the same spin, their values are added together, and that sum applies to that spin’s win. The described accumulation therefore happens in two separate ways: new winning symbol types move the level, and multiple multiplier symbols can sum for a single spin. The source does not say that a multiplier total carries over to the next spin, so the review does not treat it as a persistent bonus-wide multiplier.

Chance ×2 slightly raises the bet for a greater chance of getting Free Spins; Buy Bonus starts the feature at its displayed, bet-adjusted price. These options cannot be used together. The source gives neither the size of the Chance increase nor the probability of each Scatter count. High volatility is the listed profile, but it does not quantify the odds of reaching level 15 or seeing several multiplier symbols in one spin.

Published settings

BGaming lists 96% RTP, High volatility, pays-anywhere evaluation, and maximum multiplier ×14,134. The release date is September 14, 2023. The observed details do not provide a maximum-win amount or grid dimensions. The ×2–×100 range describes individual Multiplier symbols, while ×14,134 is the separate published game maximum. Neither value gives the probability of the level and symbol sequence needed for a particular bonus result.

Strengths and weak points

Strengths

The level advances only for newly winning symbol types, and the rules separate that progression from the addition of multiple Multiplier symbols within one spin.

Weaknesses

No maximum-win amount or grid size is provided, and the chance of reaching higher levels or combining multipliers remains unknown under the High volatility label.

Our Editor’s View

Bone Bonanza’s bonus asks the player to track which symbol types have already produced a win. First wins by low and high symbols advance the level at different rates, and that level determines the values of Multiplier symbols. Several such symbols in one spin are summed for that spin’s result. Outside the bonus, the refill loop continues until the field stops producing a win, which gives each base spin room for successive outcomes. The rules specify the level cap, Scatter awards, and bonus retrigger award, but omit dimensions, maximum-win amount, and probabilities. Players who like progression tied to symbol variety can follow the logic; those comparing headline payout ceilings or likely bonus paths have incomplete published figures.