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Bonanza Slot Review 2024

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Bonanza is a popular 6-reel online slot by Big Time Gaming, featuring a natural treasure mine Megaways theme and over 100,000 paylines. Thanks to its unique concept, this game is unlike other popular slots on the internet, which also plays a role in its high amount of playtime among players.

Following the success of the Bonanza slot, I have conducted an in-depth review that covers all the essential details about it, including its bonus features, RTP and the best casinos where you can play it. After reading this review, you’ll be able to determine whether it is worth your time and money.

Give Bonanza Demo a Go

If you want to try Bonanza free play, you can access it right here. It has all the features and functionalities of the real money game, except that you can’t cash out any of your winnings.

You are playing bonanza for FUN, check out the casinos below to play for real money. The UK Gambling Commission requires you to be over the age of 18 to play demo games. Are you over 18?
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Where to Play Bonanza Slot for Real Money

In the list below, you’ll find my favourites among the UK casinos that have met CasinoSherlock’s criteria for quality, safety and fairness and became eligible to be included in the recommendations.

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Bonanza Slot Review

Unique 6×5 grid is the major factor that makes Bonanza a rare slot. In addition, there are some profitable bonus features that can maximise payout and winning combinations.

Taking on the familiar traits of most Big Time Gaming titles, this game features excellent optimisation and visually stunning graphics. But before I go more in depth, let’s have an overview of the game first.

Bonanza Overview


Big Time Gaming

Game Type

Video slot




Treasure Mine, Megaways

Min Bet

0.20 GBP

Max Bet

20 GBP


One of the top features of the Bonanza slot is its high number of pay lines.

⚡ The game features over 100,000 paylines, which is an impressive count compared to most slots online. ⚡

Also, the slot allows minimum bets of £0.20 and maximum bets up to £20. Though the maximum bet is unsuitable for high rollers, the payouts can still be huge, as the game features many payout features and a maximum bonus multiplier of up to 10,000x.


The Bonanza slot game is a product of Big Time Gaming, so it is popular in the UK. As a result, it is available in most online casinos you will find in the region. This accessibility gives you enough freedom to play at your favourite UK casinos, as most of the online brands support Bonanza.


Big Time Gaming is a company known for top-notch optimisation, so it is excellent on Bonanza. This game is accessible on all platforms and devices. Bonanza Slot has a mobile edition too, which works on all mobile devices, and it comes packed with its regular features, including the 100,000+ paylines.

After conducting tests on different smartphones, I discovered that the speed was the same regardless of the choice of device. Big Time Gaming did a good job of translating the desktop experience to the mobile edition.

Whether you use an Android or iOS device, you can log in to the mobile edition from any browser, as the game operates on an HTML5-based framework.

Pros & Cons of Bonanza Slot

Though the Bonanza slot game is a top-level slot with exciting features and benefits, there are also some downsides to playing it. Check out its key advantages and disadvantages to better understand what to expect from playing the game.

  • Thumbs-Up Icon High multipliers
  • Thumbs-Up Icon Easy gameplay
  • Thumbs-Up Icon High paylines
  • Thumbs-Up Icon Good bonus features
  • Thumbs-Down Icon Difficult to land wins

Let’s explore the pros of playing the Bonanza slot game.

Bonanza features a maximum bonus conversion multiplier of up to 10,000x your stake. This means you can earn as high as £200,000 depending on your combination and stake value.

And as a plus, it is straightforward to play the Bonanza slot, as it features a simple concept. The overall gameplay interface is easy to understand, making it suitable for even newer players.

Next, the Bonanza slot game features up to 117,649 paylines. This number is higher than the average for most slots, so it is an advantage for players. Finally, though Bonanza features only two major bonus features, these come with many reward combos that allow you to bag huge wins, if you’re lucky enough.

👎 The only significant downside of the Bonanza slot is that wins don’t come frequently.

During my test, I didn’t manage to achieve multipliers on the higher end, even after over 45 minutes of direct spinning. It is a regular occurrence for high-volatility slots. Still, it remains a downside for players, as it can be easy to lose money.

Bonanza Slot Mechanics

In general, Bonanza features the same gameplay elements as other slots. However, the only exception is its unique 6×5 game grid, which is not that common among online slots. In the standard game, you earn a 50x multiplier when you land five purple gemstone symbols.

When landing these same multipliers during the free spin rounds, you stand a better chance of landing bigger wins. If you’re lucky enough, a mega win can lead you to a prize of up to 10,000x your stake.

Bonanza Slot

You can select your bet amount from the adjustment buttons beneath the grid in the game. The plus and minus allow you to set bets between £0.20 to £20, and the spin button is almost identical to those on most Big Time Gaming titles.

Primary symbols in the game are red, green, blue and purple gemstones. Other symbols are As, Qs, Ks, 10s, wilds, gold scatters, etc.

Bonanza Slot Theme

Bonanza slot features a treasure mine Megaways theme with several natural elements. The gameplay occurs on a rocky mine, with two mine entrances above the gameplay grid and other details like a waterfall on the right side of the screen. You can also find a wooden house on the lower left part of the gameplay screen.

What makes the theme fun is the occasional changes that occur during gameplay and the numerous treasures available. There are gold symbols, as well as gems of different colours.

The backdrop of the slot plays a significant role in the gameplay, as the graphics add a fun element, coupled with the matching sound effects and animations. Upon spinning for each session, a train above the grid drops new symbols, which appear on the grid, making it seem like a treasure delivery system.

This creates a unique experience that adds to the overall gaming entertainment.

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Bonanza Slot RTP & Volatility

The RTP, or return to player, represents the amount of money a player is likely to get in return for placing bets on a particular slot, in the long run. However, it’s not a metric that guarantees profit for players. On average, the RTP of most slots falls between the 90-95% range.

However, as for Bonanza, the numbers are a bit higher, as the slot features an RTP range of around 95% to 96% depending on the game mode.

This is one of the high volatility slots, so remember that the occurrence of colossal payout combos is less frequent.

Bonanza Slot Bonus Features

Unlike some slots with numerous bonus features, the Bonanza slot supports only two major features: the free spin and cascading reels. In this section, I’ll explore these features and their functions during gameplay.

Free Spin

You trigger the free spin feature in the Bonanza slot game when you land the G, O, L, and D symbols on the gameplay grid. This ‘gold scatter’ combo gives you 12 free spins, with a chance to receive an additional five free spins for every other extra gold scatter symbol you receive.

The process is unlimited, so if you are lucky, you can accumulate several free spins and unlock the cascading reels feature along the line.

Cascading Reels

The cascading reels emerge when you land a winning combo on the slot. After each session, the winning combos explode, and the cascading reels feature replaces them with new symbols, giving you a chance to start a unique winning combination.

If you land a winning combo with the new symbols, the feature explodes them again and fills the spaces with new symbols for another winning chance. Depending on your luck, the cascading reels can turn into a winning loop, giving you several wins in a row.

Tips & Tricks for Playing the Slot Bonanza

Tips for Playing Bonanza

Though playing Bonanza slot online is straightforward, you still need guidance to make the most of your gaming sessions. In this section, I’ve outlined the necessary tips to follow while playing the Bonanza slot. Below are my 3 most valuable tips:

  1. Utilise the Bonanza slot free play mode
  2. Stake wisely
  3. Understand how slot volatility works

Utilise The Bonanza Slot Free Play Mode

Free-play modes are helpful because they allow you to practice before betting for real money. Familiarise yourself with the Bonanza by accessing the Bonanza slot demo at any supported casino site.

You do not need to log in to play these free editions in most cases, you only need to confirm you’re 18+.

Of course, slots are luck-based, so the practice can’t influence the outcome. However, it can allow you to understand better how to use bonus features to your advantage.

Stake Wisely

One of the essential tips for playing slots is to bet wisely. While playing the Bonanza slot game, always bet using only the amount you can afford to lose. Regardless of the payout promised by the game, do not place stakes above your budget, and always make sure you use deposit limiters and other responsible gambling tools when necessary.

Slots can be get you immersed in their gameplay, so you could easily lose track of your sessions. For this reason, you are better off funding your casino account with the exact amounts you intend to use for each gaming session.

Also, remember to utilise bonuses if available, and watch out for the wagering requirements and other rules to ensure you are on the right path.

Understand How Slot Variance Works

What Does Volatility Mean in Slots

If you understand the volatility of the slot, you can use the right betting strategies for your gaming sessions. A low volatility slot pays out more often during gameplay, but the payouts are usually small. At the same time, medium slots offer balanced gameplay, while high-volatility slots pay high but less often.

The Bonanza slot is a medium to high-volatility, so you can expect balanced gameplay while playing the base game. However, landing huge payout multipliers takes a lot of work, so the best strategy is to split your bets into smaller units.

My Final Verdict on the Bonanza Slot

In my opinion, the Bonanza slot boasts two major highlights: a mixture of exciting elements and high payouts, featuring huge multipliers and numerous paylines. These are its main attractions, and for a good reason. My tests on various smartphones revealed excellent compatibility as well, giving the game an edge over many others.

The incorporation of entertaining elements, such as fun adventures, ensures an exciting gameplay experience. Additionally, the bonus features proved to be beneficial. While there may be better slots available, I think Big Time Gaming still managed to do an impressive job with the Bonanza slot.


Below are some of the most asked questions about the Bonanza slot.

What is the highest amount I can win on the Bonanza slot?

The Bonanza slot allows a maximum bet of £20 and top winning multipliers up to 10,000x your stake. This means the highest possible payout is £200,000.

How often do the bonus features trigger the Bonanza slot?

During my tests, I landed the free spins bonus feature after about 5 minutes of playing the game. However, these tests do not guarantee the exact timeframe for bonus features, as slots are unpredictable. No factor can determine how often you’ll trigger the bonus features in a gaming session.

How many paylines are in the Bonanza slot?

There are 117,649 paylines in the Bonanza slot, which is above the average for online slots and can be highly beneficial to players.

What is the Bonanza’s RTP?

Bonanza features an RTP of around 95% to 96%, depending on the game mode. This return to player rate is just above the average for online slots.

Are there any Bonanza free spins?

Yes! When you land the ‘gold scatter’ combo, it gives you 12 free spins, with a chance to receive an additional five free spins for every other extra gold scatter symbol you receive, infinitely.

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Tolulope Kehinde - Expert Casino Author

Tolulope Kehinde

Verified Author

Online Bingo & Slot Expert

Tolulope Kehinde is online bingo and slots expert at CasinoSherlock. With five years as a writer and researcher in the online gambling, she is a true pioneer in the industry. Tolulope's insights and expertise are invaluable in providing avid casino players with in-depth and up-to-date information on all things related to online slots, bingo games and payment methods.

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