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Bonanza Slot

Find out more about Bonanza, the slot game by Big Time Gaming - including RTP, paylines, bonus features & more. Take your pick from our top rated UK casinos that feature slots by Big Time Gaming and claim your offer.
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Bonanza in a Nutshell

Bonanza is a Big Time Gaming slot released in 2016. This game was an instant hit and is one of the most popular in their library. It has a mining theme and high variance, which means it’s designed to pay out infrequently but has the potential to offer large payouts. Players love this game’s wide range of bonus features including the wild, free spins and multipliers. Plus, the megaways function gives players a massive 117,649 ways to win.

This is a mobile-friendly slot game with an RTP of 96.00%. Players can spin its reel today from just 20p to £20 per spin.

How to Play

How to Play Bonanza in Three Simple Steps

Bonanza is a really easy slot game to start playing.

  1. Use the Stake button and the arrow buttons to set your bet per spin
  2. You can use the autoplay function to choose the number of spins you want and your bet per spin, then let the game play automatically. Up to 100 free spins can be set automatically
  3. Once your bet is decided and placed, hit the green button to send the reels tumbling


Gameplay, RTP and Variance

Bonanza is a six-reel, three-row slot game with a huge 117,649 ways to win. You can spin its reels from as little as 20p per spin up to £20.

The RTP is 96% which is average when compared to other online slot games. This is a high variance slot game which means the game is designed to offer infrequent wins that can potentially be quite large.

The diamond symbol is the highest paying symbol on your reels and landing six on a payline will award you 50x your stake, During the free spins bonus round, players can potentially get up to 10,000x their stake.


Bonanza Paytable

Symbol Number of symbols Win (x stake)
9 6 0.8
5 0.4
4 0.2
3 0.1
10 6 0.9
5 0.5
4 0.25
3 0.15
J 6 1
5 0.5
4 0.25
3 0.15
Q 6 1
5 0.6
4 0.25
3 0.2
K, A 6 1.75
5 0.6
4 0.4
3 0.2
Green Gem 6 2
5 0.75
4 0.5
3 0.25
Blue Gem 6 2
5 1.5
4 1
3 0.25
Red Gem 6 7.5
5 2.5
4 2
3 1
Clear Diamond Gem 6 50
5 25
4 10
3 5
2 2


Bonus Features

There are four special features in the Bonanza slot game including a wild symbol, Reaction feature, free spins bonus round and unlimited win multiplier.

The wild symbol is the sticks of dynamite and these will replace other symbols on your reels to form new winning combinations and award bigger cash prizes.

This game has a feature named Reactions, which is essentially just the cascading reels feature that is very popular in other slot games. With this feature, each time you get a winning combo, the symbols in that combo will disappear from the reels and then replaced with new symbols. This Reactions process will carry on until there are no new winning combos formed.

Then, we have the free spins bonus round. This round is triggered by landing four symbols that each has one letter on them to spell out GOLD. Players will be awarded 12 free spins and if you get more than four scatter symbols on your reels, you will be awarded an extra five free spins for every additional scatter. Watch out for the mine cart symbols in this round as landing three will award you an extra five free spins and four will award you an additional 10 free spins.

What makes this game very lucrative to play is the unlimited win multiplier. The Reactions feature is present in this round and for each time you get a winning combo, a multiplier is applied which starts at 1x. For every successive Reaction win, the multiplier increases by one and there is no upper limit for this multiplier.


Playing Bonanza on Mobile

Bonanza is a mobile-optimised slot game that can be enjoyed on both mobile and tablet devices. iOS and Android devices will support this game which was developed using HTML5 technology, so you don’t have to make any compromises for taking your gameplay on the go.


Design, sound and graphics

Bonanza has a great slot design and takes players on a journey deep down into mines where there are lots of sparkling gemstones. In the background of the reels, you will see green fields, a waterfall and a small wooden hut, while the reels are bordered by rocks from the mine. The high-value symbols on the reels are all gemstones in a variety of colours such as blue, green, red and purple. The low-value symbols are the standard playing card symbols in a variety of colours. As you spin the reels, country and western theme music plays which works fantastically well with the mining theme of this game and really contributes to the overall gaming experience.

Our Verdict

What We Think

Bonanza is a fan favourite slot game and one of the very best in the Big Time Gaming library. This game has great graphics and a wide range of exciting bonus features that keeps things entertaining, including the ever-popular Megaways feature. Use our carefully curated list of casinos to compare, sign up and play today.


If I enjoyed playing Bonanza, what other slots will I like?

There are many other slots to spin with a mining them including Diamond Mine, Treasure Mine and Dwarf Mine.

The people behind this page's online gambling content experts helped write, edit and check this page:

Jennifer is a writer with over four years of experience in the online casino industry. She has a BA in Communication and Media Studies and is's resident slots specialist, contributing to our online slot reviews.