What Bonanza actually is — its provider-published RTP, volatility and mechanics, described from the facts, with honest tips and responsible-play guidance. No score, no affiliate link.
Return to player · provider-published
96%house edge ≈ 4.00%
Not verified by Atlas. Big Time Gaming's published figure. Operators may run alternative versions — confirm on the game's info (‘i’) screen.
Volatility
Highrare, bigger wins; long dry spells
The facts
Provider
Big Time Gaming · released 2016. See game providers and which UK casinos carry them.
Layout & max win
6 reels · Megaways (up to 117,649 ways to win). Advertised maximum win: No fixed cap — an unlimited win multiplier in free spins — a ceiling reached very rarely, not a target.
Theme
Gold and gem mining, with a mine-cart feeding the top reel.
Features
Megaways — each reel shows a random number of symbols, giving up to 117,649 ways to win · Reactions — winning symbols disappear and new ones drop in · Free spins with an unlimited increasing win multiplier · A carriage reel adds extra symbols across the top.
How Bonanza works
Bonanza is the slot that launched Megaways: every spin each of the six reels shows a random two-to-seven symbols, so the number of ways to win changes constantly, up to 117,649. Winning symbols react (disappear) and new ones drop in, chaining wins from one spin.
The free-spins round is the headline: the win multiplier starts at 1× and climbs by one with every reaction, with no upper limit. That uncapped multiplier is why Bonanza can pay very large — but only on the rare occasions a long reaction chain lands, which makes it high-volatility.
Where to find Big Time Gaming games
These UK casinos Atlas tracks list Big Time Gaming among their game providers, so they carry this studio’s titles. That does not guarantee this exact game is in their lobby — availability changes and can vary — so check at the casino. Order is alphabetical, never a ranking.
These are not a way to “beat” the game — no strategy changes a random number generator. They are about understanding the maths and staying in control:
Tip 1
The ‘up to 117,649 ways’ is eye-catching but it is the RTP and volatility that matter — this is a high-volatility game where the big wins are rare and depend on long reaction chains in free spins.
Tip 2
The unlimited multiplier means results are very swingy. Size your stake so a long losing streak doesn't end your session in a few minutes.
Stay in control
There is no skill to the reactions or the multiplier — they are random. Set limits and treat the big-win headline as the exception, not the plan.
Source & confidence. Big Time Gaming game information and public provider/industry data. Verified 2026-07. Confidence: High — corroborated across multiple public sources (checked 2026-07); verify the RTP on the game's info screen. RTP figures are the provider’s published values, shown for information — the value that applies to you is on the game’s own info screen at your casino. 18+ · please gamble responsibly.
Frequently asked questions
What is Megaways?
A reel mechanic where each reel shows a random number of symbols every spin, so the number of ways to win changes — up to 117,649 in Bonanza. It doesn't change the house edge; the RTP still governs long-run returns.
What is the RTP of Bonanza?
Big Time Gaming publishes around 96%. Some casinos run different versions, so confirm the figure on the game's info screen.
Is Bonanza high volatility?
Yes. The uncapped free-spins multiplier can pay big, but only rarely, so expect long dry spells and plan your stake for them.