Last Updated on August 4, 2026 by Maurya
Bonanza Megaways is the mining-themed online slot that helped turn the Megaways mechanic into one of the most recognisable formats in modern iGaming. Developed by Big Time Gaming, the game combines dynamically changing reels, up to 117,649 ways to win, cascading reactions and a free-spins round with an unlimited multiplier.
Big Time Gaming’s current game listing dates Bonanza to 7 December 2016 and describes it as the original Megaways masterpiece. That status is understandable: although newer Megaways slots may offer more elaborate graphics and larger headline payouts, Bonanza established the basic formula that countless later releases would follow. is deliberately simple. There are no complicated collections, level-up systems or multiple bonus games to learn. Most of its appeal comes from the changing reel layout and the possibility of building a substantial multiplier during free spins.
However, simplicity should not be confused with low risk. Bonanza is a highly volatile slot, meaning wins can arrive unevenly and the free-spins feature may take time to trigger. It is therefore better suited to players who understand variance and can tolerate quieter periods between significant results.
This Bonanza Megaways review examines the game’s official specifications, reel mechanics, bonus features, RTP, maximum win, mobile performance and overall value.
Bonanza Megaways Slot Specification
| Game detail | Specification |
| Developer | Big Time Gaming |
| Theme | Gold mining and gemstones |
| Release date | 7 December 2016 |
| Reel layout | Six main reels plus an upper horizontal reel |
| Maximum ways to win | 117,649 |
| RTP | 96.11% on the current BTG listing |
| Volatility | High |
| Hit frequency | 37.94% |
| Minimum bet | €0.20 or local equivalent |
| Maximum standard bet | €20 or local equivalent |
| Maximum payout | 26,000x the stake |
| Main features | Megaways, Dual Reactions, wilds and free spins |
| Starting free spins | 12 |
| Free-spins multiplier | Increases after each winning reaction |
| Bonus Buy | Available in permitted versions and jurisdictions |
These figures come from Big Time Gaming’s current official product page. Evolution’s separate game page rounds the RTP to 96.0%, so players may see either 96% or 96.11% displayed depending on the platform or version. Always check the information screen inside the game before staking money. Makes Bonanza Megaways Important?
Bonanza was not the first game ever to use a changing-reel concept, but it became the title most closely associated with the rise of Megaways.
Traditional online slots normally use a fixed number of symbols on each reel and a fixed number of paylines or ways to win. Bonanza changes the number of visible symbols on its six main reels from one spin to the next. Each reel can display between two and seven symbols, producing a different number of possible winning combinations.
When all six reels reach their maximum size, the game can offer 117,649 ways to win. That figure is calculated by multiplying seven symbol positions across six reels:
7 × 7 × 7 × 7 × 7 × 7 = 117,649
A spin with fewer symbols will have fewer available Megaways. More ways do not guarantee a win, nor do they change the randomness of the outcome. They simply create more possible symbol combinations for that particular spin.
Big Time Gaming describes Megaways as a mechanic that reshaped modern slot design, while Evolution calls Bonanza a game-changing release built around dynamic reels and Dual Reactions. za Megaways Theme and Design
The game takes place inside a busy gold mine surrounded by rock formations, timber supports, mine carts and machinery. Rather than using detailed characters or a story-driven presentation, Bonanza focuses on familiar mining imagery.
The premium symbols are colourful gemstones, while lower-value symbols use playing-card ranks. Dynamite represents the wild symbol, and the letters G, O, L and D act as bonus scatters.
The visuals are now less sophisticated than those found in newer Megaways slots, but they remain clear and functional. The symbols are easy to distinguish, even when the reels expand to their maximum height.
Sound design plays a significant role in the experience. Mechanical noises accompany the spinning reels, while explosions and increasingly energetic music build tension during consecutive reactions. The soundtrack becomes particularly noticeable when the GOLD scatter letters begin landing.
This presentation may feel dated to players accustomed to cinematic animation and 3D characters. Nevertheless, the uncomplicated interface allows the underlying mechanics to remain the centre of attention.
How to Play Bonanza Megaways
Bonanza uses six main reels alongside an additional horizontal reel positioned above the central part of the grid. Before each spin, the game randomly determines how many symbols will appear on the main reels.
The changing reel heights create the Megaways total shown above the grid. A smaller layout may produce only a few hundred ways to win, while a fully expanded layout can reach 117,649.
Winning combinations activate the Dual Reactions feature. Symbols involved in the win disappear, allowing new symbols to enter the grid. Unlike a conventional cascade in which symbols fall only from above, Bonanza introduces symbols from two directions. Symbols drop from the top of the main reels, while the mine carts on the upper reel move from right to left.
A single paid spin can therefore generate several consecutive wins. The reactions continue until the new symbol arrangement produces no further winning combination. hanism creates the game’s most entertaining base-game moments. A relatively modest opening win can remove enough symbols to create a second, third or fourth combination without requiring another paid spin.
Bonanza Megaways Symbols
The standard paytable is divided into two broad categories.
The lower-value symbols are familiar card ranks, including 9, 10, jack, queen, king and ace. These appear frequently and tend to produce the smallest awards.
The higher-value symbols are gemstones in different colours. The purple gemstone is generally the most valuable regular symbol, followed by the red, blue and green gems. The precise payout depends on the number of matching symbols and the game version displayed by the operator.
The dynamite symbol acts as the wild. It substitutes for regular paying symbols but does not replace the GOLD scatter letters.
The four GOLD letters are the most important symbols in the game. Landing the complete word activates the main free-spins feature. should open the game’s information menu before playing because the paytable, currency and available controls can differ between casinos and jurisdictions.
Dual Reactions Explained
Dual Reactions is Bonanza’s version of a cascading-reels feature.
After a winning combination is evaluated and paid, the winning symbols are removed. New symbols then enter the vacant positions, giving the player another chance to form a combination without paying for an additional spin.
The process can repeat several times:
- A winning combination lands.
- The win is calculated.
- Participating symbols disappear.
- New symbols enter from above and from the upper horizontal reel.
- Any new win is paid.
- Reactions continue until no additional win appears.
Reactions are available in both the base game and the free-spins feature. Their value increases considerably during the bonus because each successful reaction also raises the active multiplier. em does not guarantee that a cascade will continue. Many reactions finish after the first win, while occasionally a sequence may last through several symbol replacements.
Bonanza Megaways Free Spins
The free-spins round is the game’s main attraction.
To trigger it naturally, players must land the G, O, L and D scatter symbols and spell the word GOLD. Four scatters award 12 free spins.
Every additional GOLD scatter present on the triggering spin adds five more free spins. For example:
- Four scatters award 12 free spins.
- Five scatters award 17 free spins.
- Six scatters award 22 free spins.
The most valuable part of the feature is its progressive win multiplier. It begins at 1x and increases by one after every successful reaction.
Suppose the first free spin creates three consecutive reactions. The first win is evaluated at the starting multiplier, after which the multiplier rises with each reaction. The improved multiplier remains active for the rest of the bonus instead of resetting on the next free spin.
There is no fixed upper limit on the multiplier. A long sequence of reactions can therefore make wins late in the feature much more valuable than those at the beginning. ins can also be awarded during the feature. Stacked gold-bar symbols may appear in the mine carts on the upper reel:
- Three stacked free-spin scatters award five additional spins.
- Four stacked free-spin scatters award ten additional spins.
This combination of retriggers and a persistent multiplier gives Bonanza its main payout potential. A bonus that begins slowly can change rapidly if several reactions increase the multiplier before a strong gemstone combination lands.
Is There a Bonanza Megaways Bonus Buy?
Big Time Gaming’s current version of Bonanza includes a Bonus Buy option that can provide immediate access to 12 free spins for 90x the selected stake. However, the provider clearly notes that bonus-purchase features are not available in every jurisdiction. lity depends on local regulations and the operator’s chosen game configuration. Players should not assume that a Bonus Buy will be offered simply because it appears in another review or demo.
Purchasing a feature also does not guarantee a profit. The cost is paid upfront, while the free-spins result remains random and can return less than the purchase price.
Bonanza Megaways RTP
The current Big Time Gaming product page lists a theoretical RTP of 96.11%, while Evolution displays the rounded figure of 96.0%. This places Bonanza close to the traditional 96% benchmark commonly seen among online video slots. ds for return to player. A theoretical RTP of 96.11% means that, across an extremely large number of completed wagers, the game’s mathematical model is designed to return an average of €96.11 for every €100 wagered. The remaining amount represents the theoretical house advantage.
It does not mean an individual will receive €96.11 after staking €100. A short session may finish significantly above or below the theoretical percentage.
The UK Gambling Commission explains that RTP is an average measured over a substantial number of plays rather than a guaranteed return from each session. Normal volatility can produce considerable variation in actual short-term results. laying, check the RTP displayed within the casino’s version of Bonanza. Online games can sometimes be released in different mathematical configurations, although the official BTG listing currently presents 96.11% as the game’s RTP.
Bonanza Megaways Volatility and Hit Frequency
Bonanza is officially classified as a volatile or high-volatility game. The current BTG listing also gives it a hit frequency of 37.94%. uency refers to how often a spin produces some form of winning result in the game’s mathematical model. It should not be confused with the frequency of profitable sessions or large wins. A result can count as a hit even when its value is lower than the amount wagered.
High volatility means the game’s return is distributed unevenly. Many results may be small, while a greater portion of the theoretical payout is concentrated in less frequent reactions, free spins and multiplier-enhanced combinations.
This makes careful stake selection important. Players using a large percentage of their balance on each spin may run out of funds before seeing the free-spins round.
Maximum Win Potential
Bonanza Megaways has an official maximum payout of 26,000x the stake. A theoretical maximum win would therefore be:
- £2,600 from a £0.10 stake
- £5,200 from a £0.20 stake
- £26,000 from a £1 stake
- £52,000 from a £2 stake
These examples demonstrate the mathematical maximum rather than a typical result. Maximum payouts are rare and should never be treated as an expected outcome. The 26,000x cap is confirmed by both Big Time Gaming and Evolution. realistic route to a substantial payout is the free-spins feature, where reactions can increase the multiplier throughout the round. Nevertheless, a bonus can also end with a low return.
Bonanza Megaways on Mobile
Bonanza’s relatively simple interface makes it suitable for smartphones and tablets. The reels, stake controls, Megaways counter and current balance can be displayed within a compact portrait or landscape layout.
The symbols remain identifiable when the grid expands, although the smaller playing-card values may be easier to read in landscape mode. Reactions and mine-cart animations are lightweight compared with those in more graphically intensive modern slots.
No separate application is generally required. Casinos normally deliver the game through a mobile browser or their main casino app.
Performance will still depend on the operator, browser, device and internet connection. Players should also confirm that the casino is licensed for their location before depositing.
Pros and Cons of Bonanza Megaways
Advantages
- Up to 117,649 ways to win
- Influential original Megaways format
- Dual-direction cascading reactions
- Straightforward rules and uncluttered gameplay
- Free spins with a persistent, unlimited multiplier
- Opportunities to retrigger additional free spins
- Official RTP slightly above 96%
- Compatible with desktop and mobile devices
Disadvantages
- High volatility will not suit every player
- Free spins can be difficult to trigger naturally
- Graphics look basic compared with newer Megaways releases
- Base-game play may become repetitive
- Bonus Buy availability is restricted in some markets
- Bonus rounds can return less than the triggering or purchase cost
- No progressive jackpot in the standard Bonanza game
Tips for Playing Bonanza Megaways Responsibly
No betting strategy can change the random outcome of a spin or guarantee access to the bonus round. The most useful approach is therefore based on budgeting rather than predictions.
Choose a sustainable stake
Because Bonanza is volatile, consider using a relatively small stake compared with your available entertainment budget. Reducing the wager allows the balance to cover more spins, but it does not improve the odds attached to an individual spin.
Check the game information
Confirm the RTP, maximum payout, stake range and feature rules inside the version you are playing. Do not rely solely on information from a review, as operator configurations and regional restrictions can differ.
Do not chase the GOLD letters
Past spins have no influence on future random outcomes. A long period without free spins does not mean the feature is “due,” and increasing the stake will not force the scatters to appear.
Set financial and time limits
Decide how much money and time you are prepared to spend before opening the game. GambleAware recommends setting spending and time limits in advance rather than making decisions during a session. t winnings as entertainment outcomes
A large reaction or bonus payout is not evidence that another win is likely. Avoid increasing stakes impulsively after either a win or a loss.
Verdict
Bonanza Megaways remains relevant because its core mechanics are still effective.
The changing reel heights ensure that every spin looks slightly different, while Dual Reactions allow individual wagers to produce extended chains of wins. The free-spins feature is especially well designed: its multiplier becomes more powerful with each reaction and remains in place throughout the bonus.
The game does have clear weaknesses. Its mining theme is generic, its visuals show their age and the base game can feel uneventful while waiting for the GOLD scatters. High volatility also makes it unsuitable for players who prefer regular, predictable-looking returns.
Nevertheless, Bonanza succeeds by concentrating on a small number of complementary mechanics instead of overwhelming the player with side features. The Megaways grid creates variety, reactions extend winning spins, and the persistent free-spins multiplier provides a clear sense of progression.
Overall rating: 8.5/10
Bonanza Megaways is best suited to experienced slot players who enjoy volatile gameplay, cascading wins and multiplier-driven bonuses. Players seeking frequent bonus rounds, low variance or modern cinematic graphics may prefer a different game.
FAQs
What is the RTP of Bonanza Megaways?
Big Time Gaming’s current official listing gives Bonanza an RTP of 96.11%. Evolution’s game page displays the rounded figure of 96.0%. Players should verify the percentage shown in the game information menu at their chosen casino. many ways to win does Bonanza Megaways have?
The number changes on every spin according to the number of symbols displayed on each reel. The maximum is 117,649 ways to win.
Is Bonanza Megaways highly volatile?
Yes. The provider classifies Bonanza as a volatile or high-volatility slot. Returns may therefore be uneven, with quieter periods between more valuable combinations or bonus rounds. do you trigger free spins in Bonanza?
Players must land four scatter letters spelling GOLD. Four letters award 12 free spins, and each additional scatter on the triggering spin adds another five spins.
How does the free-spins multiplier work?
The multiplier begins at 1x and increases by one after every winning reaction. It does not reset between free spins, and the feature does not impose a fixed upper multiplier limit. free spins be retriggered?
Yes. During the bonus, three stacked free-spin scatters in the upper mine carts add five spins, while four stacked scatters add ten spins. is the maximum win in Bonanza Megaways?
The official maximum payout is 26,000x the total stake. Reaching the maximum is mathematically possible but extremely rare.
What is the minimum bet?
Big Time Gaming currently lists a minimum stake of €0.20 and a maximum standard stake of €20. Currency and betting limits may vary between operators. Bonanza Megaways have a Bonus Buy?
A feature purchase is included in permitted versions of the game and is listed at 90x the selected stake. It may be unavailable because of local regulations or operator settings. onanza Megaways available on mobile?
Yes. The game can be delivered on compatible smartphones and tablets through participating casino websites or apps.
Can you win consistently on Bonanza Megaways?
No system can guarantee consistent winnings. Slot outcomes are random, and RTP applies only as a theoretical average over a very large number of plays.
Is Bonanza Megaways worth playing in 2026?
It remains a strong choice for players who value classic Megaways mechanics, cascading reactions and a persistent bonus multiplier. Its presentation is less advanced than that of newer slots, but the underlying feature design remains engaging.
Responsible gambling notice: Bonanza Megaways is an 18+ gambling game. Play only with money you can afford to lose, never borrow to gamble and stop when the activity is no longer enjoyable. Free blocking, self-exclusion and support services are available to anyone who wants to reduce or stop gambling. sino-specific version can be adapted with branded calls to action, internal-link anchors and FAQ schema markup.
