Released: 23 Jan 2018

Bonanza slot is the game that helped the Megaways trend take off, and this game is here to stay. With 117649 ways to pay, a free spins bonus feature and multipliers, it is one highly entertaining game that also comes with the possibilities of a big win. There are six reels that fit the Megaways arrangement of the reel-set. Moreover, an additional row of four reels is active at all times and turns up various symbols that can boost the outcome on the reels. Read more about it in our detailed Bonanza slot review below. 

Bonanza Slot

Bonanza Slot Review

Last updated: 17/06/2021

Bonanza is one of the most popular titles in the online slots industry. Developed by Big Time Gaming, the Bonanza slot can be found at many online casinos, including those that are featured on our page. It was released by the end of 2016, and since then, it has managed to stay on top of the trending online slots charts.

Powered by the Megaways engine, the action revolves around the cascading reels and free spins that offer a chance to trigger up to 10,000x your bet. If you are looking to read more about the Bonanza slot, you’re at the right place. Stay tuned as we cover the details and in-game extras in our Bonanza Slot Review.

Table of Contents

  1. About Bonanza Slot
  2. Design, Symbols and Graphics
  3. RTP, Variance and Payouts
  4. Gameplay and Features
  5. Bonanza Slot on Mobile
  6. Bonanza Demo
  7. Our Verdict

About Bonanza Slot  

It is pretty obvious that the theme of the Bonanza slot is mining. Okay, you won’t see the actual mining process displayed on the reels, but there are gems, stones, and other instruments used in the process.

As you probably know, stone mining requires water, so there’s also a waterfall. There are many online slots where symbols include gold, gems and other precious stones, but none of them displays the whole process in the manner and the way in which that is done here by Big Time Gaming. 

bonanza slot review

In terms of layout and reels, we find the overall setup pretty unique. You'll play this slot game across 6 reels and dynamic rows that can go up to 7 in height. There are games with a non-standard number of winning combinations, but not many slots offer 117,649 ways to win. The carts that appear above reels two to five are a nice addition and significantly boost your chances to trigger a win. 

How do you play Bonanza?

Before you decide to spin the reels and dive deep into this mining slot adventure, make sure you adjust your betting level in the range of £0.20 - £500 per spin. This range is suitable for both high rollers and players who like to keep their stakes low.

The highly volatile model, coupled with several bonus features, will give you a chance to trigger a win of 10,000x your bet. Moreover, each time you consecutively land a win during the bonus game, you'll increase the multiplier for +1. This feature will significantly boost your totals and get you closer to the big prize. 


Design, Symbols and Graphics 

The very first glance at the game will give you the impression that you are on the field just in front of a mining entrance. And that’s exactly where the action is happening.

The mine's entrance is actually the screen where the reels are spinning, positioned on the rocky background. The actual reels are small scale compared to other games, as Big Time Gaming is putting an accent on the surroundings. You can see the rocky mountain covered in grass and a few trees and flowers here and there.

The design is satisfying, and the graphics are awesome, considering that this is a slot game developed back in 2016.  The music is in accordance with the theme; it includes sound effects, and the reels are turning to the tune of "The Sash My Father Wore", but in a faster rhythm. On the bottom of the screen, just below the reels, you can see the game’s logo, while on the left bottom corner, you can adjust various option and preferences. 

The Bonanza slot features six reels, and two to seven symbols may appear on a single reel. The number of winning combinations can reach up to 117,649 -  the reason why so many players enjoy playing this game. There are ten symbols on the paytable, plus additional special symbols. When you are creating a game that revolves around the theme of mining, you can expect the symbols to be like they are – all related to the mining.

As expected, there are two categories of symbols divided into higher and lower valued ones. Here are the classic A-10 royals accompanied by gemstones in different colours. The most rewarding symbol of this collection is the purple gemstone that wins you 50x your stake for 6 of a kind. During spins, you'll notice the golden-plated letters ( G, O, L, D ), crucial for triggering the free spins round, which we'll discuss in short. 

bonanza slot big time gaming

RTP, Variance and Payouts for Bonanza Slot 

The theoretical Return to Player percentage of the Bonanza slot is 96%, which is straight up the industry average. The variance tends to be very high, so don't expect frequent wins during gameplay. However, once you manage to trigger a win, it will surely be a bigger one. Once you advance to the bonus rounds, the chances to trigger a bigger prize will significantly increase.

All in all, thanks to the Megaways mechanic, you can end up winning up to 10,000x the stake from a single spin, which is pretty impressive.

Is Bonanza a good slot?

Yes! Bonanza is packed with an average RTP, excellent payout potential, and of course, it's the first game powered by the Megaways engine. All in all, Bonanza is an awesome slot that needs to be checked out.

If you want to learn more about different RTP models, read our detailed Variance, Volatility and RTP guide and see which one suits you best. 

Gameplay and Features for Bonanza Slot 

Big Time Gaming decided to add a few extra features in both the base and bonus game. With six reels and an astonishing 117,649 paylines, there are many chances to trigger a win.

The reel action revolves around the cascading reels, one of the top features in the Bonanza slot. Also, the standard Free Spins round includes an unlimited multiplier option each time you consecutively land a winning combo.  Now, let's delve into these features in more detail: 

Cascading Reels Feature

This feature represents more of a reel action resulting from the Megaways mechanic. For those who are not familiar with it, cascades are caused by exploding/popping symbols on the grid.

Every time you land a winning combination, the winning symbols are removed, and new ones "fall" on the respective positions. This way, you can trigger consecutive wins and cause a cascading reaction! This feature is active as long as you form wins on the reels. Also, cascades play an important role during the Free Spins feature, which we'll discuss below. 

Free Spins Feature

Triggering the free spins bonus can be the door to big winnings in the Bonanza slot. The letters G, O, L and D, are the scatters in this game and trigger the Free Spins feature. It makes sense, doesn’t it? The dynamite symbol is the wild in this slot game.  With four scatters, you will trigger 12 free spins, and you can get additional 5 spins for every extra scatter you land.

You can also win additional free spins if you're lucky to land gold bars in the mining cart. So, 3 and 4 gold bars will win you 5 and 10 free spins, respectively.

We've mentioned the important role of the cascades during this bonus game, as it activates an unlimited multiplier that boosts your totals. Each time you get a consecutive win, the multiplier is increased by +1. There's no limit on the free spins retriggers or the multipliers, which is certainly a good thing to know. 


Bonanza Slot on Mobile 

Bonanza is a mobile-friendly slot which means that if you want to play it on your mobile device, such as a smartphone or a tablet, there will be nothing standing in your way. There’s no need to download any apps or anything, just open the casino site in your mobile browser, and if they have the game in their desktop version, it will also be available in the mobile variant of the site.

Bonanza Demo

Big Time Gaming released their best production to date as a Bonanza demo slot at online casinos that host demo games. Bonanza demo allows the players to test the game before playing it with real money. 


Other Bonanza-themed Slots

The fact that many other online slots games were based on Bonanza says a lot about its popularity. If you were looking for some other Bonanza slot variations, look no further. Click on the links below if you want to read our full reviews on these games:

SlotsWise Verdict 

The Bonanza slot is certainly one of the most popular slot titles in the big pond of online slot games. The overall design template and visuals are exquisite and of the highest quality. The developer provided a seamless user experience as soon as you start to spin the reels of the Bonanza slot.

The Megaways engine spices up the gameplay and offers plenty of reel action, as usual. This is a classic title that's worth exploring, so if you're comfortable playing with high variance game models, you're at the right place.

Play the Bonanza slot and claim your welcome bonus offer at some of our featured casinos!  

Key Features
  • ProviderBig Time Gaming
  • Reels6
  • Min Bet0.20
  • Max Payout10000.00x
  • RTP96.00
  • Paylines117649
  • Max Bet500.00
  • Bonus Rounds1
  • VarianceHigh
About The Author

Sanja Tasevska


Sanja is our game expert and uses her knowledge to review all kinds of slot games, both old and new. The detailed reviews include the most important info about a particular slot game. She’s been a part of this industry for many years and so far she’s played and given her opinion on thousands of different slot titles. Contact Sanja

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