Bonanza Megaways Slot Review

Expert Rating: 5 out of 5
Review by Review by Chris Taylor Chris Taylor
Last update 3rd May 2021
Review by Chris Taylor
Review by Chris Taylor
Last update 3rd May 2021

Go mining for treasure in the Bonanza Megaways slot, the most popular of Megaways slots by a country mile. This 6 reel slot from Big Time Gaming that’s played using the developer’s Megaways game engine that offers up to 117,649 winning combinations. It also comes with a Free Spins feature with expanding multipliers which can lead to 10,000 x stake wins on each free spin. Playable on all devices from 20p a spin, the Bonanza RTP is 96%. Find out why this is the best Megaways slot around. Also, scroll down to play Bonanza for free.

See less
Bonanza Megaways Max Win
10,000 x bet
Big Time Gaming
Type of Slot
Megaways Slot
Up to 117,649
Stakes Range
20p to £20
Bonus Features
Yes (3)
Free Spins/Multiplier
Max Win
10,000 x

Demo: Play Bonanza Megaways for Free

SlotsMillion Casino
  • Exclusive 200% up to £60
  • 2,300+ Slots
  • VR Virtual Reality
T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly, #ad

Best Casinos to Play Bonanza Megaways Slot with Real Money

NY Spins Casino
  • 100% up to £50
  • 50 Free Spins
  • 1,000+ Slots
T&C Apply

18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Free Spins come as cash. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus.

  • 30 NetEnt Free Spins
  • 100% up to £100
  • 1,000+ Slots
T&C Apply

New players only • 30 Free Spins (FS) • FS must be claimed within 48 hrs of receiving the email and expires after 14 days • Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms – • General withdrawal restrictions & full T&Cs apply. #ad

LeoVegas Casino
  • 30 Wager-Free Spins
  • £100 in Bonuses
  • 2,100+ Slots
T&C Apply

Free spins – no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Free spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 free spins on Book of Dead with each qualifying deposit, 3 day expiry. #ad

Bonanza Megaways Slot Details & Wager Limits

Reels/Paylines: 6 reels + up to 117,649 ways to win

Stakes Range: 20p to £20 per spin

Max Win: 10,000 x stake per spin

The Bonanza slot uses the Megaways game engine from developer Big Time Gaming. With 6 reels, each of them can feature anything between 2 and 7 symbols so the number of ways to win changes on each spin. If you see 7 symbols on every reel, you will benefit from the maximum number of 117,649 Megaways.

Winning combinations are formed when the same symbol lands on adjacent reels, starting from reel 1. This means you will need to get matching symbols on reels 1, 2 and 3 at the minimum to get a winning combination. With every win, the contributing symbols disappear to be replaced by new ones, giving you the chance to win again (and again hopefully).

The minimum stake is 20p per spin. You can play with as much as £20 a spin. If you want to use the Autoplay function, you can choose from 5 to 100 spins and set loss limits and single win limits. It’s all very simply laid out.

Bonanza is medium to high variance slot game with the bigger wins coming from the increasing multiplier in the Free Spins feature. The maximum win per free spin is 10,000 x your stake.

Bonanza Megaways RTP

RTP: 96%

The Bonanza slot RTP is 96%. This is pretty average for an online slot game. This means that you will theoretically get £96 back for every £100 you wager. You will get the majority of wins in the base game but the ones in the Free Spins feature should be bigger due to the multiplier factor.

Theme – Audio and Design Features – go mining for gold

Theme: Mining

High Value Symbol: Diamond

Compatibility: Mobile, Tablet, Desktop

Bonanza Megaways slot base game

Visually, the Bonanza slot is rather well done. The setting is a mine and it has a mining theme and set on hills with huts and waterfalls in the backdrop. The graphics are not as sharp as newer slots but this means it has a certain charm to it.

One thing that will strike you when playing is the soundtrack. It has a hillbilly style backing track which is upbeat and exciting. Bonanza Megaways has the feel of a live casino slot which I think is a major factor in the success and appeal.

With the symbols appearing on stone/granite blocks, you’ll see A, K, Q, J, 10 and 9 royals. There’s also green, blue and red gems as well as a diamond. The diamond is by far the highest paying symbol with 6 on a payline giving you 50 times your stake respectively. Here’s what each of the symbols pay:

Symbol(s) Payouts
bonanza-megaways-slot-9-symbol9 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 0.8 x stake
bonanza-megaways-slot-10-symbol10 3, 4, 5 or 6 = 0.15, 0.25, 0.5 or 0.9 x stake
bonanza-megaways-slot-j-symbolJ 3, 4, 5 or 6 = 0.15, 0.25, 0.5 or 1 x stake
bonanza-megaways-slot-q-symbolQ 3, 4, 5 or 6 = 0.2, 0.25, 0.6 or 1 x stake
bonanza-megaways-slot-k-symbolK 3, 4, 5 or 6 = 0.2, 0.4, 0.6 or 1.75 x stake
bonanza-megaways-slot-a-symbolA 3, 4, 5 or 6 = 0.2, 0.4, 0.6 or 1.75 x stake
bonanza-megaways-slot-green-gem-symbolGreen Gem 3, 4, 5 or 6 = 0.25, 0.5, 0.75 or 2 x stake
bonanza-megaways-slot-blue-gem-symbolBlue Gem 3, 4, 5 or 6 = 0.25, 1, 1.5 or 2 x stake
bonanza-megaways-slot-red-gem-symbolRed Gem 3, 4, 5 or 6 = 1, 2, 2.5 or 7.5 x stake
bonanza-megaways-slot-diamond-symbolDiamond 2, 3, 4, 5 or 6 = 2, 5, 10, 25 or 50 x stake

Above the reels you’ll notice a cart that carries 4 symbols on each spin. Each cart adds another symbol to the reel directly below, providing another potential winning opportunity. The sticks of dynamite symbol is the game’s wild. It replaces all other symbols bar the scatter and appear on the positions above reels 2, 3, 4 and 5.

Bonanza Megaways mobile


You can play Bonanza slot on mobile, tablet and desktop devices, with iOS, Android and Windows technology. Despite the 6 reels and moving parts, it looks good on smartphones so you can play on the go.

Bonanza Megaways Bonus Features

Bonanza Megaways comes with 3 bonus features. Central to the action is the Reactions feature which sees winning symbols removed and new ones take their place for new winning combinations. Then there’s the Free Spins feature where you’ll begin with 12 free spins . Each win triggers the Unlimited Win Multiplier feature where the multiplier increases infinitely.

Reactions feature

After each winning spin, the successful symbols are blasted away from the reels and replaced by new symbols above. A new payout is made with the new symbols in place. Known as the Reactions feature, these blasts continue until there’s no new winning combination on show. This can lead to plenty of consecutive reactions (or wins).

Free Spins feature

Bonanza Megaways slot Free Spins feature

The letters G, O, L, D are the scatters. Land 4 of them and you’ll trigger the Free Spins feature where you’ll be awarded 12 free spins. Any further scatters on the trigger spin will add another 5 free spins to your total.

For example, triggering the free spins with 6 scatters will give you 22 free spins. The Reaction feature is in play during the feature meaning more potential spins.

Unlimited Win Multiplier feature

Bonanza Megaways comes with an Unlimited Win Multiplier feature. A multiplier is applied to any payout after every successive explosion. The multiplier starts at 1x and increases by 1 on each subsequent explosion win. There is no limit to how high the multiplier can increase to.

Look out for the bars of gold which appear in the carts above the reels during the feature. 3 of them will add another 5 free spins to your tally. Four will give you another 10 free spins. Like the multiplier, there’s no limit meaning potentially unlimited free spins.

Bonanza Megaways Review Summary – the Megaways standard

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96%)

Max Win (10,000 x)


There’s plenty of action on offer in the Bonanza slot. The Megaways game engine means there’s always something happening. The best winning opportunities will come via the free spins though where the multipliers can send your wins soaring. You can win up to 10,000 times your stake on every free spin. The Bonanza RTP % is 96% which is good.

Medium to high variance, Bonanza wasn’t the first Megaways online slot but it may well have been as it’s become a cult classic and by far the most popular Megaways game.

As a result, it’s become the go-to slot for streamers as they try and win gold. The design in Bonanza isn’t as sharp as newer Megaways slots like Kingmaker (Megaways) but this adds to the charm and appeal. Get lucky with those free spin explosions and there could be a Bonanza of gold hiding inside Mount Cashmore.

If you like the ever-changing mechanic, check out our dedicated Megaways section where you’ll find a list of all Megaways slots and a detailed guide on how it works.

  • The most popular Megaways slot
  • Put Megaways on the map
  • Unique charm + feel
  • There aren't any

Bonanza Slot Sites

Being the most popular Megaways title by some distance as well as 1 of the best slot games ever made, there are lots of slot sites where you can play Bonanza, both for real money and for free. If you want a Bonanza free play version, scroll up. You can enjoy this iconic offering on desktop, mobile and/or tablet devices.

SlotsMillion Casino
  • Exclusive 200% bonus up to £60 – code: OSUK200
  • 12 hour cashouts
  • Unique Lock my Withdrawal feature
T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly, #ad

Bonanza Megaways FAQs

What is the Bonanza Megaways RTP?

The Bonanza Megaways RTP is 96%. This is pretty standard an online slot game and means you will theoretically win £96 back for every £100 you wager. The majority of your wins will come in the base game but the bigger wins come in the Free Spins feature.

What is the Bonanza Megaways max win?

The most you can win from a Bonanza Megaways spin is 10,000 x your total stake per spin. Whilst this is possible on base game spins, the likelihood increases in the Free Spins feature due to the increasing, and unlimited, win multiplier.

Are there any Bonanza free spins?

Yes. The Bonanza Megaways Free Spins feature is what this game is all about. Beginning with a minimum of 12 free spins, it comes with an Unlimited Win Multiplier feature where each reaction or win increases the multiplier by 1, with no limits. You can also win unlimited extra free spins.

Is there a Bonanza Megaways demo?

Yes, you can play the Bonanza Megaways slot for free here at This allows you to sample the Megaways mechanic in all its glory as well as see the Unlimited Win Multiplier feature in action during the free spins.

How does the Megaways engine work?

On each spin, between 2 and 7 symbols will randomly appear on every 1 of the 6 reels. The more symbols per reel, the more Megaways or ways to win. If you see 7 symbols on all 6 reels, you’ll benefit from 117,649 Megaways.

Other Megaways Slots

Whilst Bonanza wasn’t the first Megaways title, it put the Megaways engine on the map. Since then, Big Time Gaming has created plenty of Megaways slots. BTG have even licensed the mechanic to many other providers. I recommend White Rabbit and Extra Chilli from BTG as well as Gonzo’s Quest Megaways (NetEnt) and Wheel of Fortune Megaways (IGT).

More Innovation from BTG

Big Time Gaming haven’t just depended on Megaways. They have plenty of other superb slot games. They include slots that use Megaclusters and Megaquads mechanics. I would also check out Wild Flower and Pop: