Bonanza, from Big Time Gaming (BTG), is one of the most significant and influential online slots ever created. Launched in 2016, it was the game that popularized the Megaways mechanic, which offers a variable number of symbols on each reel, potentially leading to 117,649 Ways to Win. This slot delivers an incredibly high-volatility mining experience powered by cascading wins.
📋 Slot Overview: Bonanza Quick Facts
| Metric | Detail |
|---|---|
| Developer | Big Time Gaming (Evolution Group) |
| Release Date | 2016 |
| RTP (Return to Player) | 96.00%* |
| Volatility / Variance | High |
| Reels & Rows | 6 Reels (Variable Rows 2-7) + 4-symbol horizontal reel |
| Paylines | Up to 117,649 Megaways |
| Max Win Potential | Over 26,000x the stake |
| Min/Max Bet | Varies by operator |
*While the default is 96.00%, some local operators in South Africa may offer slightly lower RTP versions (around 94%) to account for local betting taxes.
🌟 Introduction & Theme
Bonanza is set against the backdrop of a rustic gold mine, with symbols representing various gems, jewels, and playing card royals. A crucial design element is the horizontal reel positioned above the four central reels, which features mining carts carrying extra symbols—it’s both a functional part of the mechanism and a nice visual touch. The banjo-driven soundtrack is fast-paced and catchy, perfectly matching the intensity of the volatile gameplay.

⚙️ Gameplay & Special Features
Bonanza is defined by its two main mechanics: the Megaways system and the Reaction (Cascading) feature.
Megaways and Reactions (Key Mechanics)
- Megaways: Each of the six vertical reels can display between 2 and 7 symbols on any spin. The total number of ways to win is calculated by multiplying the number of symbols on each reel (e.g., $7 \times 7 \times 7 \times 7 \times 7 \times 7 = 117,649$). The active number of ways is displayed on the screen.
- Reactions: This is the cascading wins mechanic. All symbols involved in a win explode and are removed, allowing new symbols to fall into their place. The carts above the reels also bring in new symbols. This process continues until no new wins are formed.
Free Spins Bonus with Unlimited Multiplier
The bonus round is triggered by spelling the word G-O-L-D across the reels using the Scatter symbols.
- Initial Spins: You receive 12 Free Spins for spelling G-O-L-D, plus 5 additional spins for any Scatter beyond the fourth.
- Unlimited Win Multiplier: The feature starts with a 1x multiplier. Crucially, the multiplier increases by +1 after every single successful Reaction (cascading win) and never resets for the duration of the Free Spins.
- Re-trigger: Landing 3 or 4 Scatters in the mining carts above the reels awards an extra 5 or 10 Free Spins, respectively.
✅ Verdict and Accessibility
Final Verdict
Bonanza’s influence on the slot market cannot be overstated; it made Megaways a household name. Its Very High volatility means it is absolutely capable of extended periods without a win, but the unlimited multiplier potential in the Free Spins round offers some of the most dramatic and rewarding moments available in any online slot. Getting that bonus is truly like striking gold.
Player Guidance
- Recommended For: High-risk players who seek huge payout potential and enjoy cascading reels, chain reactions, and high-stakes volatility.
- Accessibility: Available at almost all major online casinos due to the widespread licensing of the Megaways mechanic.
Our Casino Guides
Discover our selection of best slots games, designed to help players understand volatility, features, and payout potential before choosing where to spin.
❓ Frequently Asked Questions
Is it possible to have fewer than 117,649 ways to win?
Yes. The number of Megaways changes on every spin, depending on how many symbols land on each reel. 117,649 is the absolute maximum.
What is a “Reaction”?
A Reaction is simply the cascading win mechanism. Every time a winning combination explodes and new symbols fall, that counts as one Reaction.
Why is the Banjo music so fast?
It’s designed to create “flow” and excitement. Many SA players claim it’s their favorite part of the game—though there is a mute button if you prefer a quieter mining trip!
