Home›Bonanza slots›Bone Bonanza
🕒 Last updated: 27 July 2026
Bone Bonanza has one thing its BGaming stablemates lack: a Progress Bar that governs how large free spins multipliers can grow. The rest is familiar, with a 6×5 grid, pay-anywhere wins from 8 matching symbols and refilling reels, but the bar is a real mechanical addition rather than new artwork.
It runs a 96% default RTP, high volatility and an oddly precise maximum of 14,134x stake. BGaming dates the skeleton-themed release to 14 September 2023 while SlotCatalog says 7 September, so September 2023 is the safe answer.
| Provider | BGaming |
| Release date | 2023-09 (BGaming: Sep 14, 2023; SlotCatalog: 2023-09-07) |
| RTP | 96.0% |
| Volatility | High |
| Maximum win | 14,134x your stake |
| Layout | 6×5 (6 reels, 5 rows) |
| Paylines / ways | Pay Anywhere / scatter pays – no paylines; 8+ matching symbols required for a win |
| Bet range | 0.20 (GBP per SlotCatalog; 0.2 unit per VegasSlotsOnline) – 25 (GBP per SlotCatalog; 25 per VegasSlotsOnline) |
| Hit frequency | 38.40% (SlotCatalog), consistent with BGaming’s ‘Hit Rate’ 2.6 (1 in 2.6 spins). Free Spins rate 1 in 332. |
| Bonus buy | Yes — 100x bet (SlotCatalog) |
Where to play Bone Bonanza online
Where to play Bone Bonanza — casinos we work with
How Bone Bonanza works
Symbols pay by total count rather than position. Any symbol appearing 8 or more times anywhere on the grid at the end of a spin pays out, and Scatters pay on the same anywhere basis. There is nothing to line up, and the trigger does not depend on reel placement either.
Winning combinations are then cleared and replaced by symbols falling from above. If the refill creates another qualifying group it pays, and the sequence continues until nothing new forms, so a single spin can deliver several consecutive wins. BGaming publishes no cap on how long one of those sequences can run.
SlotCatalog records a hit frequency of 38.40%, consistent with BGaming’s hit rate of one win per 2.6 spins. Free spins arrive noticeably more readily here than in BGaming’s other Bonanza titles, at roughly 1 in 332 spins. Stakes run from 0.20 to 25 according to SlotCatalog and VegasSlotsOnline, though the exact ceiling depends on your operator and currency. BGaming publishes no currency cap on the maximum win for this game, so the 14,134x multiplier is the only stated limit.
Bone Bonanza bonus features
The trigger follows the house pattern. 4, 5 or 6 Scatters award 10, 20 or 30 free spins, and 3 or more Scatters during the round add 5 more. What happens inside the round is where this game separates itself from its siblings.
The Progress Bar runs from level 0 to level 15. Each first-time win with a low-value symbol raises the bar by 1 level; each first-time win with a high-value symbol raises it by 2. That level then determines how strong the multiplier symbols can be. The multipliers appear only in free spins, take values from x2 to x100 according to the current level, and where several land together their values are summed.
The practical consequence is that the round has to build. Early spins tend to produce weak multipliers while the bar sits low, and the bonus only becomes dangerous once enough symbol variety has pushed the level up, which also means short rounds rarely pay well. Chance x2 and Buy Bonus both shorten the wait for the round itself, with SlotCatalog pricing the buy at 100x the bet. The two are mutually exclusive and cannot be used together. Buy pricing and availability are set by each casino, and buy features are restricted outright in several regulated markets.
Bone Bonanza RTP, volatility and max win
The default RTP is 96% and agrees across BGaming, SlotCatalog and VegasSlotsOnline. No alternative RTP tiers are published for this title, which is normal for BGaming but does not guarantee uniformity in the wild. Providers commonly certify a game at several return levels and let each casino select one, and ante or buy-feature versions can carry their own figures. The only authoritative number is the one displayed in the game you are about to play, so open the paytable or rules screen in your casino client and read it there before staking anything.
Volatility is rated high with no numeric score published. The bonus arrives comparatively often for this engine at 1 in 332 spins, but the Progress Bar puts variance inside the feature as well as around it: a short round that ends before the level climbs leaves you with weak multipliers and a small return. The 14,134x maximum is lower than the 15,000x of several sibling titles, and like every such cap it describes a mathematical extreme rather than a plausible session outcome.
Bone Bonanza pros and cons
What we like
- Progress Bar is a genuine mechanic, not just a new theme
- 96% RTP, the highest of the three BGaming reskins here
- Free spins trigger relatively often at 1 in 332 spins
- 38.40% base-game hit frequency
- Multiplier values from x2 to x100 are summed within a sequence
What to watch out for
- 14,134x cap is lower than the 15,000x of sibling titles
- Short free spins rounds pay poorly while the Progress Bar is low
- No RTP tiers or volatility score published
- Exact release day is disputed between BGaming and SlotCatalog
Bone Bonanza compared with other Bonanza slots
Against its closest relatives, Bone Bonanza’s 96% RTP beats Bonanza Billion and Dice Bonanza, which both sit at 95.97%, although both of those reach 15,000x against this game’s 14,134x. Aztec Magic Bonanza splits the difference with 96.11% RTP, a 10,200x cap and the same 0.20 to 25 stake range. Bonanza Trillion is the outlier of the group: a much higher 97.17% RTP but a far shorter 5,000x ceiling, with multipliers reaching x500 in the base game as well as free spins.
Verdict
Bone Bonanza is the most interesting of BGaming’s Bonanza reskins, because the Progress Bar changes how free spins actually play instead of just changing the artwork. A 96% RTP and a bonus rate of 1 in 332 are both marginally better than what Lucky Farm Bonanza and Dice Bonanza offer, at the cost of a slightly lower 14,134x ceiling. That trade is reasonable. It is still the same pay-anywhere cascading core underneath, so anyone tired of the formula will not be converted by a skeleton theme.
Bone Bonanza FAQ
What is the RTP of Bone Bonanza?
96%, agreed by BGaming, SlotCatalog and VegasSlotsOnline. No alternative tiers are published, but you should still confirm the figure in the game’s info screen at your casino.
How does the Progress Bar work in Bone Bonanza?
During free spins it runs from level 0 to 15. A first-time win with a low symbol adds 1 level and a first-time high-symbol win adds 2. The current level sets how strong the x2 to x100 multiplier symbols can be.
What is the maximum win in Bone Bonanza?
14,134x your stake. BGaming does not publish a currency cap for this title, so that multiplier is the only stated limit.
When was Bone Bonanza released?
September 2023. BGaming gives 14 September and SlotCatalog gives 7 September, so the exact day is not settled between sources.
Is Bone Bonanza different from Bonanza Billion?
It shares the same 6×5 pay-anywhere grid and refilling reels, but the Progress Bar is exclusive to Bone Bonanza, and the numbers differ at 96% RTP and a 14,134x cap.
