Bonanza Megaways Slot Review

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.

Where to Play Bonanza Megaways Slot


up to £60




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


up to £100


Free Spins



T&C Apply

18+. Play Safe. New UK customers only. Opt in required. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £100 with 35x wagering and 50 Free Spins at £0.20/spin on Starburst™ with 35x Wagering. Free Spins and Bonus credited once deposit amount has been wagered on slots. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply. #ad


up to £100





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

Bonanza Megaways Slot Details & Wager Limits

The Bonanza slot uses the Megaways game engine. 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

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

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 a quartet of gemstones. The purple gemstone is by far the highest paying symbol with 2, 3, 4, 5 or 6 on a payline giving you 2, 5, 10, 25 or 50 times your stake respectively.

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

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.

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.

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 free play version?

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.

Bonanza Megaways Slot Information

  • Game:
    Bonanza Megaways
  • Provider:
    Big Time Gaming
  • Type:
  • Reels:
  • Paylines:
    Up to 117,649
  • Stakes Range:
    20p to £20
  • Bonus Features:
    Yes (3)
  • Free Spins/Multiplier:
  • RTP %:
  • Max Win:
    10,000 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.