Bonanza Megaways

Bonanza Megaways is the slot that turned Big Time Gaming’s variable-reel system into one of the most recognisable mechanics in online gaming. Released in 2016, it combines up to 117,649 ways to win with dual-direction reactions and an unlimited multiplier during free spins.

I regard Bonanza as an influential but demanding slot. Its rules are easy to understand, yet the high volatility means the most interesting sessions depend heavily on reaching the bonus and building its multiplier through several reactions. Players looking for frequent, steady returns may find its pace frustrating.

Bonanza Megaways Slot Details

The available stakes, currency and optional features can vary by operator or jurisdiction. The regular game has a theoretical RTP of 96.00%, while the published Bonus Buy RTP is 96.11%. Players should check the in-game paytable to confirm the configuration available at their chosen casino.

Mining Theme and Presentation

Bonanza takes place beside a mountain gold mine, with a waterfall, railway tracks and loaded mine carts surrounding the reels. Coloured gemstones form the premium symbols, while dynamite is used for the Wild.

The visual design is detailed enough to establish the setting without distracting from the changing grid. Symbols remain clear even when the reels reach their maximum height, which is important in a game where several reactions can occur during one spin.

The soundtrack uses an upbeat country and bluegrass style. It fits the mining theme, although the repeated tune may become tiring during longer sessions. Dynamite effects and brighter animations help reactions feel more substantial when several wins arrive in sequence.

How Megaways Works

Bonanza uses six reels with a variable number of symbols. Each reel can display up to seven symbols, creating a maximum of 117,649 ways to win when the grid is fully expanded.

Winning combinations are formed by matching symbols across consecutive reels from left to right, beginning on reel one. The symbols do not need to appear on a fixed payline or at the same height.

The changing grid is central to the game, but a high number of active ways should not be confused with a guaranteed win. It only describes how many possible symbol combinations are available on that particular spin.

Dual Reactions and Mine Carts

Every winning symbol takes part in a reaction. The symbols involved disappear, new ones fall from above and the game checks the refreshed grid for another win. This continues until no further winning combination is formed.

Bonanza adds a second direction to this process through the mine carts positioned above reels two, three, four and five. Each cart contributes one additional symbol to the reel below it. During reactions, replacement symbols enter from above on the main reels and from the right through the carts.

This Dual Reactions system is one of the features that distinguishes Bonanza from simpler cascading slots. A modest initial combination can produce several consecutive reactions, although each result remains random.

Symbols and Wilds

The lower-value symbols are the familiar playing-card ranks from 9 to A. Coloured gemstones occupy the higher end of the paytable, with the diamond serving as the most valuable regular symbol.

The dynamite Wild substitutes for all regular paying symbols but not for Scatters. Wilds appear only in the mine carts above the central reels, so their position and the height of the reel below them can influence how many combinations they complete.

The Scatter symbols are the letters G, O, L and D. Landing all four letters anywhere across the reels spells GOLD and activates the free-spins feature.

Free Spins and Unlimited Multiplier

Four GOLD Scatters award 12 free spins. Each additional Scatter on the triggering spin adds another five free spins.

The feature begins with a 1x win multiplier. After every winning reaction, the multiplier increases by one. It does not reset between free spins, so a sequence of reactions early in the bonus can improve the value of later wins.

For example, the first reaction is settled at the current multiplier before it rises for the next reaction. A longer cascade therefore becomes progressively more valuable, while the increased multiplier remains in place for the rest of the feature.

Extra free spins can also be awarded through special Free Spin Scatter symbols appearing in the carts:

• Three Free Spin Scatters award five additional spins.
• Four Free Spin Scatters award ten additional spins.

The multiplier has no stated upper limit, but that does not mean it will necessarily reach a high value in a typical bonus. Its growth depends on how many reactions occur before the free spins end.

Bonus Buy

In versions where the feature is permitted, Bonus Buy provides 12 free spins for 90x the selected feature stake. The cost is deducted immediately from the player’s balance.

Buying the feature does not guarantee a profit or a high multiplier. It only bypasses the normal Scatter trigger. Because one purchase costs the equivalent of 90 regular bets, this option can consume a playing budget quickly and should be approached with a fixed spending limit.

RTP, Volatility and Maximum Win

The standard game has a published overall RTP of 96.00%. The current rules list a slightly higher 96.11% RTP for Bonus Buy, although available configurations may differ between operators.

Bonanza is a high-volatility slot with a published hit frequency of 37.94%. Hit frequency includes all recorded wins, including returns below the original stake, so it should not be read as the chance of making a profit on each spin.

The maximum payout is 26,000x the stake. This is a fixed theoretical ceiling rather than a progressive jackpot, and its size says nothing about how frequently it can be reached.

Players interested in newer interpretations of the same formula can compare it with Bonanza Falls, which replaces the traditional bonus structure with the Megadozer mechanic, or Bonanza Megapays, which adds a progressive jackpot system.

Mobile Experience

Bonanza runs in HTML5 and is available on desktop, mobile and tablet devices. The controls are straightforward, while the vertical layout keeps the reels readable on smaller screens.

The interface displays the current stake, balance and accumulated win without covering the grid. Autoplay may be present in some versions, although its availability depends on local regulation and the casino’s settings.

Advantages and Drawbacks

What I Like

• The Megaways grid offers up to 117,649 ways to win.
• Dual Reactions allow symbols to enter from two directions.
• The free-spins multiplier increases after every reaction.
• The rules remain understandable despite the variable grid.
• The maximum payout reaches 26,000x the stake.

What Could Be Better

• High volatility can create long and uneven sessions.
• The base game has few features beyond reactions and changing reel heights.
• Triggering all four GOLD Scatters can require patience.
• The repeated soundtrack may become tiring.
• Bonus Buy costs 90x the stake and does not guarantee a worthwhile return.

My Bonanza Megaways Rating

4.3 out of 5

Final Verdict

Bonanza Megaways remains historically important because its mechanics influenced a large part of the modern slot market. The combination of a variable grid, two-directional reactions and a persistent free-spins multiplier still gives the game a clear identity.

Its age is more noticeable in the base game, which is simpler than many newer releases from Big Time Gaming. Most of the meaningful potential is concentrated in the free-spins feature, and the high volatility will not suit players who prefer regular low-level payouts.

My rating for Bonanza Megaways is 4.3 out of 5. It is an influential and well-structured slot with a strong bonus mechanic, but its demanding variance and restrained base game make it less accessible than some modern alternatives. Bonanza should be treated as paid entertainment with a real possibility of losing the entire amount staked.

More games with similar themes and mechanics are available in the Bonanza slots catalogue.

Bonanza Megaways In Comparison Table