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Bonanza Slot Casinos: Top Picks to Play Online in the US

Will Brown Written by Will Brown
Last Updated on 16.09.2026

When the Bonanza online slot was released by Big Time Gaming in 2016, a revolution in online gambling was born. The game introduced the new Megaways payout system to the world, and since then, the mechanic has been integrated into dozens of modern video slots.

Summary:

The mining-themed slot is widely available at casinos across the US, so we’ve helped you by recommending only the best Bonanza online casinos to join. These platforms excelled in our reviews due to their leading software, diverse gaming options, high-speed payouts, and appealing bonuses.

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By reading this Bonanza slot review, you’ll learn the most important details about the game, including its RTP and volatility, its symbols, and its special features. We’ve also recommended some other great titles with similar payout structures or themes.

Overview of the Bonanza Slot Game

Bonanza in Brief:

There’s a lot to love in the Bonanza slot. The game has bold and modern 3D graphics, with the dynamic reel set-ups keeping every spin fresh and exciting. I loved the fast pace of gameplay, and its 96% RTP, cascading reels, and free spin multipliers produced consistent wins.

However, as a High volatility game, the triggering of the free spins round was rare. In fact, it took an hour of gameplay for this to land. Keep in mind, though, that this was just my experience, and every player’s experience will differ.

More About Online Slots

Full Rules & Information About the Bonanza Online Slot

To begin playing the Bonanza online slot, you’ll first have to set your per-spin stake of between $0.20 and $15. You’ll also be able to set autoplay and quick spin features if you’re looking for a more hands-free experience.

Bonanza Factsheet

Reels 6
Rows 2-7
Paylines Up to 117,649 Ways to Win
Multipliers Yes
Gamble Feature No
Free Spins Yes
Bonus Games No
Jackpot No
Min Bet $0.20
Max Bet $15

This game uses the Megaways system, which sees alternating numbers of symbols in each reel with every spin, thereby changing how many ways to win there are in each round. Wins will also see symbols in winning paylines disappear to cascade new symbols in their place.

Every spin, symbols will appear in mine carts above the middle four reels. If you were to nearly have a winning combination across the reels but were missing, for example, the symbol that appears in the second reel mine cart, this symbol can come into play and award the win.

Bonanza Symbols & Payouts

There are 12 symbols that can land across the Bonanza slot reels that mostly relate to the mining theme. The lowest valued are, in order, 9, 10, J, Q, K, and A. The highest valued are the gems, which are blue, red, green, and purple.

Landing six of the highest-valued purple gems will award 50X your stake. There is also a dynamite WIld and the Gold Scatters. Landing the Gold Scatters will trigger the free spins bonus round that we’ve described in the upcoming section.

Screenshot from the Paytable of Bonanza
Picture: Bonanza has a fun gold-mining and Western theme
  • All symbols: 12
  • Highest-Paying Symbol: Purple Gem
  • Wilds: Standard Wilds
  • Paylines Pay: Left to Right
  • Maximum Win: 26,000X

Bonanza Bonuses & Features

Without a doubt, the most appealing feature of the Bonanza online slot is its free spins round. You can win 12 free spins by landing four of the Gold nugget symbols across the reels, with each spelling GOLD. Every additional Scatter that lands in the base game will award an extra 5 spins.

In the free spins round, every winning combination that lands to trigger more reels will increase the multiplier by 1X. There is no limit to how large the multiplier can grow, meaning the potential payouts are massive.

In the free spins round, Gold Scatters only appear in the carts, and landing three will award an additional five spins, and landing four will award an additional 10. When you play Bonanza for real money, it is possible to buy entry to the free spins for 90X your stake.

Similar Games & Best Alternatives

If you’re looking for an alternative Megaways game that offers a lower volatility than this game, many Bonanza online casinos stock NetEnt’s Divine Fortune Megaways. This game has a beautiful Greek Mythological theme with rewarding free spins and an RTP of 96.5%.

If you’re simply looking for another game with a Western theme, we recommend NetEnt’s Dead or Alive franchise. These games share similar scores and atmospheres but payout according to more traditional payline setups.

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A Game-Changing Online Slot

Overall, I found Bonanza to be an exciting online slot that, when lucky, can offer huge payouts. While the High volatility could mean that gameplay could be repetitive, its use of the Megaways system keeps spins dynamic.

We strongly suggest you try a free demo before you play this game for real money to see if it suits your needs. Alternatively, check out more of our expert reviews to discover other popular and trustworthy titles available in the US.

Photo of Will Brown, Author on Online-Casinos.com

Will Brown Online Casino and Betting Expert
About the Author
Will Brown entered the online gambling industry at a time of seismic change. Over the past 10 years, he has tracked the legalisation of sports betting in the US, the growth of the online casino sector, and major regulatory changes across the UK and Europe. He has written extensively on the evolution and future outlook of the sector, and enjoys applying his love of storytelling to his work.

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