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Safer Gambling Week 2025

Big Bass Jackpot Bonanza at Paddy Power

Leaping Big Bass fish

The Big Bass series of slot games have dominated UK online casinos over the last few years.  There have been Halloween and Christmas versions of the game, horse racing themed versions to coincide with the Cheltenham Festival, Megaways versions, a crash game, a bingo game – pretty well everything you can think of.  Except, that is, for a progressive jackpot.  But now that has all changed with the launch of the Big Bass Jackpot Bonanza, which is currently exclusive to Paddy Power and other Flutter sites with a “Play It Here First” banner.

Big Bass Jackpot Slot Game Tiles
The three new games, plus jackpot versions of Hold & Spinner and Floats My Boat

Big Bass Jackpot Bonanza – The Games

Five Big Bass games are included in the Jackpot Bonanza system:

  • Big Bass Hold & Spinner
  • Big Bass Floats My Boat
  • Big Bass Master Classic
  • Big Bass It’s A Whopper
  • Big Bass Surf’s Up

If you think some of these titles sound unfamiliar, you’re right!  Hold & Spinner and Floats My Boat are jackpot versions of previously released games in the series and the other three are brand new.  They are all pretty similar apart from some minor differences in game features, with Master Classic being the most distinctive version.

  • Hold & Spinner has an extra bonus round with a cash collect mechanic
  • Floats My Boat has an extra multiplier feature in the bonus round
  • Master Classic has a special mechanic for collecting fish values when 4 or more appear on the reels, plus the Remover symbol which removes the lowest value from possible fish values in the bonus round as well as awarding extra free spins
  • It’s A Whopper has an extra symbol which can be collected on the side during the bonus round to award extra free spins
  • Surf’s Up has a mystery symbol; all mystery symbols on screen transform into the same random paying symbol

Jackpots are awarded via a jackpot game that can be triggered by any spin in the base game (not during bonus rounds).  Match three symbols to win the corresponding jackpot.

At Flutter sites, all of these games have the same Return To Player – 92% not including the jackpot contribution and 93.02% including it.  For comparison, the non jackpot version of Big Bass Hold & Spinner at Paddy Power has considerably better RTP of 94.07%.  The RTP of the jackpot games could be higher or lower if the jackpot system is rolled out to other casinos, but you can expect it always to be lower than that of the non jackpot versions.  (If you’d like to know more about variable slot game RTP check out our Best Payout Casinos page).

The Return To Player of slot games can change and may not be the same at all casinos. Please check the in-game documentation before playing for the correct RTP figure.

Big Bass Jackpot Bonanza – The Jackpots

Big Bass Jackpot Bonanza - the 4 jackpots
Tap or click on the i symbol to see how often the jackpot has been won and what its highest value was

There are four jackpots in the Big Bass Jackpot Bonanza system – Minor, Major, Mega and Grand.  10% of the jackpot contribution goes towards seeding each of the next jackpots and the rest to the current jackpots.  It’s split as follows:

  • 0.5% stake – Grand
  • 0.05% stake – Mega
  • 0.05% stake – Major
  • 0.4% stake – Minor

This is an interesting split as it shows that the biggest and smallest jackpots are set to grow faster and drop more often than the middle two (you can actually see this when you play any of the games as Minor and Grand tick upwards much more quickly than the others).  And indeed, when I checked the day after the launch the Minor jackpot had been won 142 times with a highest value of £339.28, the Major jackpot had been won twice with a highest value of £1172.19, the Mega jackpot had been won once at £1133.86 and the Grand jackpot had been won 3 times with a highest value of £6092.20.

Jackpots can be won at any spin value but higher spin values have a higher chance of winning.

Big Bass Jackpot Bonanza – Where To Play

  • Paddy PowerPaddy Power
    + BingoNo Wagering+ Sports Betting

    Paddy Power ( PPB Entertainment Limited )

    60 No Deposit Spins + Deposit & Play £10 Get 100 Free Spins

    60 No Deposit Spins + Deposit & Play £10 Get 100 Free Spins

    Bonus details
    Minimum Deposit

    No deposit required for first part of offer, £10 for second part.

    Wagering

    No wagering on winnings

    Expiry

    7 days

    Other Key Info

    Debit card or Apple Pay deposit only

    Site details
    Uk License

    PPB Entertainment Limited, 39426

    Payment Methods
    Products
    • Slots
    • Casino
    • Live Casino
    • Bingo
    • Sportsbook
    • Virtual Sports
    • Lotto
    • Poker
    Is it any good?
    Everyone has heard of Paddy Power and their unique, irreverent sense of humour. That big personality is part of what makes this site so great - along, of course, with an almost unbeatable range of betting and gaming products all under one roof.
    Sue Dawson
    Sue Dawson Creating iGaming content since 2013 - bingo and slots specialist
    Pros
    • Great multi product site from a household name
    • No wagering on winnings from spins and bonus offers
    • Excellent customer service
    Cons
    • You've probably already got an account there

    New customers only. Enjoy 50 Free Spins on any of the eligible slot games + 10 Free Spins on Paddy's Mansion Heist. Claim your 50 Free Spins from your promotional hub. Next, Enjoy your 10 Free Spins on Paddy's Mansion Heist (awarded in the form of a £1 bonus). Finally, opt in, deposit and wager £10 to receive 100 more Free Spins on Slots. Free Spins expire after 7 days. T&Cs apply. *18+ GambleAware.org Please play responsibly #ad

    The Return To Player of slot games can change and may not be the same at all casinos. Please check the in-game documentation before playing for the correct RTP figure.

  • 50 No Deposit Spins + Deposit & Play £10 Get 200 Free Spins

    50 No Deposit Spins + Deposit & Play £10 Get 200 Free Spins

    Bonus details
    Minimum Deposit

    £10 for deposit offer

    Wagering

    No wagering on spins winnings from either offer

    Expiry

    7 days

    Other Key Info

    Add debit card to claim no deposit offer. Play £10 on slots or instant win to claim deposit offer.

    Site details
    Uk License

    Bonne Terre Limited, 38718

    Payment Methods
    Products
    • Slots
    • Casino
    • Live Casino
    • Bingo
    • Sportsbook
    • Poker
    • Fantasy Sports
    Is it any good?
    Sky Vegas is a slot site which can be played with the same wallet and login as any other Sky product.  It offers free spins (both as part of the welcome offer and in ongoing promotions) that really are completely free, with no wagering requirements and winnings paid in cash with no cap on what can be won.
    Sue Dawson
    Sue Dawson Creating iGaming content since 2013 - bingo and slots specialist
    Pros
    • Multi product site with the backing of a TV giant
    • No wagering requirements on any player promotions
    • Comprehensive filtering to help you find games you like
    Cons
    • Doesn't have Mega Moolah or Dream Drop progressives

    18+ new customers only. Opt-in required. 7-day Free Spin expiry. All Free Spins will be loaded on the first eligible game selected. Game and eligibility restrictions apply. Further T&Cs apply. *18+ GambleAware.org Please play responsibly #ad

    The Return To Player of slot games can change and may not be the same at all casinos. Please check the in-game documentation before playing for the correct RTP figure.

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*New UK customers only. 125 free spins on Hold & Spinner (£0.10 per spin) credited after successful £10 deposit and £10 stake on Casino, Vegas or Live Casino. No wagering requirements on free spin winnings. Debit Card deposit only (exclusions apply). This offer is valid 7 days from the new account being registered. 18+ BeGambleAware.org. Bet the Responsible Way Full Terms Apply *18+ GambleAware.org Please play responsibly #ad

New players only. Min deposit is £20.100% casino bonus (max £100). Debit card only. Each free spin value is 10p. Offer valid 48 hours after registration. Debit cards only. 35x casino wagering required. Game weighting applies. 2-day bonus expiry. T&Cs apply. 18+ GambleAware.org. *18+ GambleAware.org Please play responsibly #ad

 First-time depositors only (+18). Valid until further notice. Min Deposit £10. Max Reward: £60 Slot Bonus & 30 Bingo Tickets. Slot Bonus x35 wagering. Slot Bonus wins cap: x4 the initial bonus amount. Slot Bonus is valid for 7 days upon receipt. Bingo Tickets are granted to the Big Bass Bingo room and are valid for 7 days. Country restrictions apply. UK only: Your deposit balance (defined as Transaction Balance under our Deposit & Withdrawal Policy) is available for withdrawal at any time. Withdrawal Requirements and General T&C apply. *18+ GambleAware.org Please play responsibly #ad

18+ New GB customers only. Deposit and stake £10 (debit cards only) on Casino Slots and claim up to 250 spins over 5 days. Max 50 spins each day. New customers must opt in on registration and use within 7 days. Free daily spins expire after 24h. Free Spins: £0.10 each, selected games only. Geographical restrictions and T&C’s apply. *18+ GambleAware.org Please play responsibly #ad

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