Big Bass Bonanza 1000 slot

What the '1000' means in the Big Bass Bonanza 1000 slot

The original Big Bass Bonanza is a 5×3 fishing game in which fish carry cash values and a fisherman wild scoops them up during free spins. Its top prize is 2,100× the stake. Big Bass Bonanza 1000 keeps the grid, the ten lines and the fisherman, but widens the range of values a fish can carry, up to 1,000× the stake, and lifts the cap on a single round to 20,000×.

That one change reshapes the game. When a single fish can be worth a thousand stakes, a few catches can make a round, so more of the game's return is pushed into rare, valuable free spins rounds and less into everyday base-game wins. It is the same pattern Pragmatic Play (see the studio's own site (opens in a new tab)) used when it built Sweet Bonanza 1000 and Gates of Olympus 1000: familiar layout, bigger top values, a higher ceiling.

How the Big Bass Bonanza 1000 slot machine works

Each spin is decided by the game's random number generator the moment you press the button. The reels then play out a result that is already fixed. Wins are paid on ten fixed paylines, left to right, starting from the first reel; your total stake is split across those ten lines.

1. Set your total stake; all ten lines are always active.
2. Press spin. The RNG picks a stop position on each of the five reel strips.
3. Line wins are counted on each of the ten lines and paid as multiples of the line bet.
4. Fish money symbols in the base game pay as an ordinary symbol when three or more line up; their printed values are not collected outside the feature.
5. Three or more scatter symbols anywhere start the free spins.
6. The game shows your balance and net position, and waits at least 2.5 seconds before the next spin can begin.

A detail that surprises some players: in the base game a fish with 500× printed on it is not worth 500× on its own. Those values only matter when a fisherman is present, and the fisherman only appears in the free spins.

Big Bass Bonanza 1000 paytable and symbols

The lower end of the paytable is the usual 10, J, Q, K and A. Above those sit fishing-themed pictures such as the tackle box, the rod and the float, which pay more. The fish money symbol doubles as a paying symbol in the base game: published game guides list 1×, 5× and 20× the stake for three, four and five on a line. Check the help screen for the full table at your chosen stake.

Big Bass Bonanza 1000 free spins and the fisherman ladder

Three, four or five scatters start 10, 15 or 20 free spins. If you land two scatters, the game can occasionally reel in a third at random to start the feature, a common touch across the series.

Inside the round, the fisherman appears on all five reels as a wild. Whenever he lands, he substitutes for paying symbols and collects the value of every fish money symbol on the screen. Each fisherman is also counted on a meter above the reels. Every fourth one collected restarts the round with 10 more spins and moves the fish multiplier up a level.

Published descriptions also mention random modifiers during the round that can add fish money or fishermen to the reels when they would otherwise be missing. The game's help screen lists the exact set for the version you load; treat any description you read elsewhere as a guide rather than a promise.

Worked example: how one free spin is valued

Playing at 20p, you have collected four fishermen, so the multiplier is 2×. On the next spin, one fisherman lands with three fish showing 5×, 10× and 50× the stake. Their face values are £1, £2 and £10, so £13 in total. With the 2× multiplier, that spin adds £26 to the round. If a second fisherman had landed, each one would collect the same fish, doubling that collection again. This is the cash collect mechanic, and the multiplier is a straightforward example of multipliers growing through a bonus.

Big Bass Bonanza 1000 RTP and volatility

The RTP is 96.51% in the version most commonly quoted, meaning the game returns an average of £96.51 per £100 staked over its lifetime. Game guides note that lower settings, 95.51% and 94.51%, also exist, so the casino you choose decides which one you play. The RTP variants page explains why.

Volatility is high. In plain terms: most spins return little or nothing, free spins rounds vary from a few pence to many hundreds of stakes, and the rare round where big fish meet a high multiplier carries a lot of the return. A small budget can be used up before you see a single feature.

How much Big Bass Bonanza 1000 costs to play

Your expected loss is the amount you stake multiplied by the house edge. At 96.51% that edge is 3.49%. These are long-run averages across a huge number of spins; real sessions spread widely either side.

Notice how the difference between versions grows with the stake. At £5 a spin, picking a casino running the lowest setting adds around £10 to the average cost of every 100 spins.

Big Bass Bonanza 1000 max win at UK stakes

The game caps any single round at 20,000× the stake. When the cap is reached the round ends and the capped amount is paid.

No published figure gives the chance of reaching the cap. It needs a combination of high-value fish, several fishermen and a raised multiplier in the same round, which is why it is so rare. Our explainer on max win caps covers how studios decide these limits.

UK rules behind the Big Bass Bonanza 1000 slot

• Stake caps: £5 a spin for players aged 25 and over since 9 April 2025, and £2 for 18–24s since 21 May 2025. The government's announcement of the £2 maximum stake for under-25s (opens in a new tab) sets out the reasoning.
• No autoplay or turbo: since 31 October 2021 every spin must be started by hand and last at least 2.5 seconds.
• No bonus buy: some markets sell direct entry to the free spins. UK-licensed casinos don't offer that on slots, so the scatters are the only route in.
• Honest celebrations: a win smaller than or equal to your stake can't be shown with win sounds or animations. See the losses disguised as wins rule.

Our overview of UK slot machine rules brings these together in one place.

Big Bass Bonanza 1000 demo play

Free demo play, after age verification, is available at many UK casinos. The rule that a casino must verify your age before any play-for-fun game has applied since May 2019, so you'll need an account. A demo is good for learning the meter and the modifiers. It is too short a sample to show you the RTP, and demo results should not be used to judge whether the real-money game is 'paying'.

Common Big Bass Bonanza 1000 myths

• 'A fish showing 1,000× means a big win is coming.' It means nothing unless a fisherman lands in the same free spin.
• 'The game owes a bonus after hundreds of dead spins.' Each spin is independent; the RNG has no memory.
• 'Two scatters and a near miss mean you were close.' The result was fixed before the reels stopped.
• 'Raising the stake improves the odds.' The odds are identical at every stake; only the size of wins and losses changes.

For a wider look, see whether slot machines remember past spins and our slot machine myths guide.

Big Bass Bonanza 1000 and the rest of the series

The Big Bass family is large. If you like the collect idea but want a different balance, Bigger Bass Bonanza uses a 5×4 grid with twelve lines and a 4,000× cap; Big Bass Splash adds random pre-feature modifiers with a 5,000× cap; and Big Bass Vegas 1000 is another '1000' edition, rated medium volatility with a 15,000× cap. Blueprint's Fishin' Frenzy Megaways uses a similar fisherman on a Megaways grid.

Our Big Bass Bonanza vs Big Bass Splash comparison and the fishing slot machines page help you choose between them. Every game we cover is listed on the slots hub.

Is Big Bass Bonanza 1000 worth playing?

It suits adults who enjoy the series and are comfortable with a budget lasting fewer spins in exchange for a higher top prize. If you'd rather have steadier, smaller returns, the original or a medium volatility slot fits better.

Where to play Big Bass Bonanza 1000 in the UK

Pragmatic Play games are found at most large UK casinos, but lobbies change, so search the casino's game list before you sign up. PlayOJO's welcome offer is linked to this series: new UK customers (excluding Northern Ireland) get 80 free spins on the original Big Bass Bonanza, not the 1000 edition, at 10p each after a first deposit of at least £10, with winnings paid in cash and no wagering. Coral gives 100 free spins at 10p on selected games after a new player deposits and bets £10 on slots, and Ladbrokes gives up to 500 free spins over 10 days after a £10 slot spend. All offers are 18+, and full terms, including excluded payment methods, apply.

Before playing, set a deposit limit and decide what you are prepared to spend. GAMSTOP (opens in a new tab) lets you self-exclude from all UK online casinos at once if you need a break.

18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: plan a slot budget. Free, confidential help: National Gambling Helpline 0808 8020 133.