Big Bass Hold and Spinner Megaways Slot Review (Pragmatic Play)

RTP: 96.04%

Provider: Pragmatic Play

Best casinos: All British Casino, Casushi, Monopoly Casino, Hot Streak, Rainbow Riches

Big Bass Hold and Spinner Megaways Key Features

RTP: 96.04%

Provider: Pragmatic Play

Volatility: High

Theme: Fishing

Reel style: Megaways

Paylines: 117465

Stakes: £0.20 - £250

Max Win: 20,000x


Free Spins

Collect and Win


I just discovered the latest Big Bass slot game on the slots sites listed above, making it a total of 11 in the series. Can you believe it? Whether you think it's overkill or you just can't get enough, Big Bass Bonanza Hold & Spinner Megaways is ready to reel you in with its immersive fishing-themed action across 6 reels and mega 147,456 paylines. The return to player (RTP) is an attractive 96.04%, and its high volatility is thrilling. Plus, with the addition of slot games features like the Hold & Spin, and the Fisherman taking center stage again, it's bound to be a catch!

Casinos that offer Big Bass Hold and Spinner Megaways slot sorted by RTP

10 No Deposit Bonus Spins on Finn and the Swirly Spin

  • Wagering req. 60x
  • Value/free spin £0.10
  • Offer amount £1
Available for new registrations only. Max 10 bonus spins credited upon SMS validation. Finn and the Swirly Spin only. 60x Wagering, 4x Conversion up to £200. 18+. Full T&Cs apply.
#ad. 18+,, T&Cs Apply

100% Welcome Bonus + 50 Bonus Spins!

  • Wagering req. 40x
  • Value/free spin £0.10
  • Offer amount £55
100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply.
#ad. 18+,, T&Cs Apply

Spend £10, Get 30 Extra Spins on Monopoly Paradise Mansion

  • Wagering req. 0x
  • Value/free spin £0.01
  • Offer amount £6
New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on MONOPOLY Paradise Mansion. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.
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100% up to £100 + Always 10% Cashback!

  • Wagering req. 35x
  • Value/free spin -
  • Offer amount £100
#AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply
#ad. 18+,, T&Cs Apply

Play £10 Get 30 Free Spins on Rainbow Riches

  • Wagering req. 0x
  • Value/free spin £0.01
  • Offer amount £6
New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game.
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100 Spin Test

This 100 Spin test was updated by Steve Madgwick on 07/09/2023 

100 spins is not a Real Test

We give every slot a 100 spin test to see just what it can do, or not as the case can often be - 100 spins is no reflection of the likelihood of any other 100-spin session, as RTP's are set over many millions and probably billions of spins. So this 100 spin test is just for entertainment and insight purposes

Session RTP258.5x
Win Frequency Medium 22/100
Biggest Base Game Win58.6x and 40x
Spins to Bonus51
Bonus Paid139.4x Hold and Spinner Bonus
Time Taken for 100 Spins
Average Win Value over 100 Spins11.75x

The Spin Test criteria can be found at the bottom of the page

Test Comments

The volatility of this game was very apparent, with a 58.6x base game win on only the second spin. This was followed just a few spins later by a second big base game win of 40x.

I thought that would be the end of that for the 100 spin test, but how wrong I was, after 51 spins, the hold and spinner bonus dropped in and landed a further 139.4x win, contributing to the overall session RTP of a ridiculously good, 258.5%

This does scare me somewhat though, as the ability to put in a session like that does indicate the reverse, and much worse could also be in store, so if I found this game being dead for any length of time, I think I would have to walk away

Big Bass Hold and Spinner Megaways Expert Review

Theme & Symbols
Bonus Features
Max Win (20,000x)
Sounds & Music
RTP (96.04%)

Game Data

Whether you’re new to this series or you’re already a fan. You might be asking yourself what’s different about this latest game? Well, it has the addition of the innovative Megaways feature. This means tonnes more paylines for each spin. Which importantly means more ways to win.  There’s also the Hold & Spin Bonus which I mentioned briefly in the summary. With this, there are buckets of opportunities for respins and multipliers.

Right, let’s continue with this in-depth Big Bass Hold & Spinner Megaways Review slot review.  You’ll be able to read about every aspect of this new release. Let's begin!

Slot Game Data Table Slot Review

 Slot Review Game Data
StudioPragmatic Play
RTP %96.04%
Reel StyleMegaways
Stake Range£0.20 - £250
Max Win20,000x
Special SymbolsFish Money Symbol, Wild Symbol, Mystery Symbol, Fisherman Symbol, Coin Money Symbol, Diamond Money Symbol & Scatter Symbol
FeaturesTumble Feature, Free Spins Feature, Hold & Spin Bonus & Megaways

Graphics, Music, and Sound Effects

The background image shows an underwater scene that is synonymous with the Big Bass slot games. You’ll find calming shades of blue teeming with plenty of river life. For the sound effects, you can hear water bubbling and the pop of bubbles. The reel imagery includes plenty of fishing-related graphics that have been designed in eye-catching colours.

The upbeat music sets a sunny scene and sounds similar to music that has been used across the other Big Bass games. 

Key Features

Now that I’ve shared the summary, intro, graphics, music, and sound effects. It's now time to tell you about the key game features of the Big Bass Hold & Spinner Megaways game. This will help you decide if the game is your cup of tea or not.

At OLBG we create slot games reviews which include up-to-date info about essential features such as themes, paylines and reels, bet range, and bonuses.  If you want to find out about the technical information and learn about my first impressions and experience, don’t go anywhere.

Theme – Fishing

The background image shows a bubbling turquoise-blue river. Mixed in with the aqua colours are animated bubbles, jazzy-coloured fish and swaying aquatic weeds.

The music is well-matched to the bright vibe and is sunny and chirpy.

The reel imagery consists of many fishing-related items. In order of value (starting from the highest), they are - a fishing float, fishing rod, dragonfly, fishing box and a selection of fish. This is followed by the standard Ace, King, Queen, Jack and 10. 

If you’ve played any Big Bass games before, you’ll see many familiar images on the reels and in the symbols. If you haven't played before, fear not, it’s easy to understand and you can check the paytable if you need to find out any info.

There are many special symbols for this game and they include the Fish Money Symbol which is depicted by a group of fish. The Mystery Symbol shows a lantern, the Wild Symbol is represented by a net. The Scatter Symbol shows a big bass fish and the Fisherman Symbol shows the big guy himself.


Six is the magic number for the Big Bass Hold & Spinner Megaways game. For this game you’ll find 6 reels and 6 rows.


The payline amount is impressive for the Big Bass Hold & Spinner Megaways game. With the addition of the Megaways, there are stacks of paylines available, 147,456 to be exact.


Return to Player or RTP is a way of predicting what percentage of player’s stakes will be returned to them in the long term. It’s always represented by a percentage that’s usually somewhere between 94% and 96%. The Big Bass Hold & Spinner Megaways Review RTP exceeds the average slightly at 96.04%.

Like all other providers, Pragmatic Play uses this as a default value. You’ll find different RTPs at various operator’s sites. We’ve saved you the time of looking and have put together a list of a few percentages at some of the top UK online casinos. You’ll find them in the table below. 

It’s worth mentioning that there’s more than RTP to think about when looking for a site to play at. Factors such as payment options, game library, customer support and welcome bonuses and deals are also important. Our casino reviews analyse these things and much more.

All British Casino96.04Read Now
Casushi96.04Read Now
Hot Streak Casino96.04Read Now
Monopoly Casino96.04Read Now
Rainbow Riches Casino96.04Read Now

If, like most players nowadays, you want to try out more than one game you should check out this page with the slot sites we recommend. These sites feature hundreds of games that UK players can launch straight away.

Stake Range

The stake range covers a wide range that starts at £0.20 and goes right up to £250. When you play you have the choice of a coin view or a money view when checking your balance.

Max Win

Big Bass Hold & Spinner Megaways has an impressive max win. This is 20,000x your total stake when playing this game.

Wild Shape

The Wild Symbol substitutes for all symbols apart from the Scatter, Fisherman and Coin Money Symbols. The Wild Symbol only appears on the topmost reel.

Free Spins

If you trigger 3 or more Scatter Symbols on the reels you’ll enter the Free Spins bonus round. 6 Scatter Symbols - 25 free spins, 5 Scatter Symbols - 20 Free Spins, 4 Scatter Symbols - 15 Free Spins and 3 Scatter Symbols - 10 Free Spins. During the Free Spins round, each Fisherman Symbol collects the values from the Fish Money Symbols which you’ll see in the bar next to the grid. These are collected at the end of each round. Every fourth Fisherman Symbol collected will do a bunch of fun stuff. Including retriggering the feature, awarding 10 further free spins and adding multipliers to the Fish Money Symbol collection.


The Big Bass Hold & Spinner Megaways slot is like the majority of online slots today – it doesn't have a jackpot feature. If jackpots are your thing, you should visit our page with the best jackpot slot games.

Play Experience & First Impressions

The Big Bass games are instantly recognisable with their calming, underwater imagery, chilled-out fisherman frontman and fishing-related imagery. 

Expert Verdict

My initial thought when seeing this latest game was, do we really need another Big Bass game? But I understand why Pragmatic Play would want to make the most of such a popular game. Who knew a fishing theme would kick up such a storm in the world of slots? The popularity of this game shows no signs of slowing down. At OLBG we've already reviewed Big Bass Bonanza, Big Bass Splash and Big Bass Amazon Xtreme which are highly-rated games. 

The addition of Megaways makes a lot of sense and I’m personally a fan of this paylines feature. From a practical point of view including this feature means a bigger grid when playing due to the topmost grid on the screen. This makes it clearer and even bluer so that gets a thumbs-up from me.

Speaking of features, I thoroughly enjoyed the Hit & Spin Bonus which is triggered by 3 or more Coin Symbols. These only appear on the main grid, not the additional topways grid. This bonus grid only shows Coin Symbols and Diamond Symbols. The value of all Coin Money Symbols is then added to the total win of the round. After this, 3 respins are awarded. The value of all Coin Money Symbols that trigger after the respins are also added to the total win. In addition to the coins, Diamond Money Symbols may trigger too. These gave values ranging between 50x - 2,000x the bet. Once this bonus round is finished if the total win is below 20x there are 3 more repins awarded which is pretty impressive.

The Tumble Feature is also worth a mention. After each spin, winning combos are paid and all of the winning symbols disappear. The remaining symbols fall to the bottom of the screen and the empty positions are replaced with new symbols from above. These new symbols are of the same size as the initial spin result before the tumbles. The tumbling action continues until no more winning combos appear as a result of the tumble. All wins are added to your balance after all the tumbles resulting from a base spin have been played.

A 20,000x max win is impressive and will appeal to players looking for bigger wins.

To sum up, this is a lighthearted, buoyant game which is great when you want to play something cheerful. I've played a few of the Big Bass Games and this latest game does stand up, due to the new features that have been added. Will there be a 12th game? Probably. We’ll have to wait and see if they can keep the momentum going but if they keep adding features like this it’s great news.

Editorial Information

Big Bass Hold and Spinner Megaways slot review was written by the OLBG Slots Content Team, beginning with Andrej Trajkovski, who has worked in the online gambling industry since 2013, playing and reviewing online slots and casinos daily for the past four years. 

Contributing to the review was Jake Ashton, a slots fan who is also part of the casino and sports betting team here at OLBG and Jenny Mason with Online Casino, Bingo and Slots Experience from over 15 years in the industry. 

The review is Fact Checked by William Westerlund, an online casino expert reviewing casinos and slots for over five years, and published by Steve Madgwick, our Editor-In-Chief with over 18 years of experience creating and managing high-quality sports betting and Casino content for OLBG & multiple other publications and a self-confessed online slots fans who has played at 100's of the best slot sites online and completes the Spin tests.

100 Spin Test Criteria

The 100 Spins test is undertaken on a demo slot, staking 100 spins at £1 per spin

Session RTP - Return to the player after 100 spins - Eg, A return of £45 from 100 spins is 45%, or a return of £107 is 107%

Win Frequency - A winning spins to spins frequency, higher frequency regardless of prize, is often more entertaining.

  • 0-10 Very Low
  • 11-15 Low
  • 16-30 Medium
  • 21-35 High
  • 36+ Very High

Biggest Base Game Win  - Highest single base game spin winning value

Spins to Bonus - How many spins were completed before the main bonus round was achieved

Bonus Paid - Value of bonus once complete

Time Taken  - How long did the 100 spins take to complete?

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