Slot guide
Big Bass Secrets of the Golden Lake slot review: RTP, Golden Lake Free Spins and stakes
A 2024 Big Bass entry from Pragmatic Play with a card pick that can unlock Golden Lake Free Spins, where regular pay symbols leave the reels.
Big Bass Secrets of the Golden Lake is a high-volatility Pragmatic Play slot from April 2024, built with Reel Kingdom as part of the Big Bass series. It runs on five reels and three rows with 10 lines, the main build returns 96.07%, and the top listed win is 5,000x the stake. What sets this Big Bass Secrets of the Golden Lake slot apart from earlier fishing titles is a card pick that can lead to a second, richer version of the free spins.
Big Bass Secrets of the Golden Lake: spec sheet
From the provider's published game sheet.
- Provider
- Pragmatic Play
- RTP
- 96.07%
- Volatility
- High
- Max win
- 5,000x stake
- Reels
- 5
- Rows
- 3
- Lines
- 10
- Min bet
- £0.10
- Max bet
- £250
- Released
- 8 April 2024
Features
- Ante Bet: 50% extra per spin for more scatter chances
- Fish money symbols worth 2x to 5,000x
- 3, 4 or 5 scatters award 10, 15 or 20 free spins
- Fisherman wild collects fish values in free spins
- Golden Lake Free Spins chosen via card pick, regular pay symbols removed
- Every 4th Fisherman retriggers 10 spins with x2, x3 then x10 money multiplier
- Buy Free Spins: 100x for random type, 270x for Golden Lake Free Spins
RTP can be set lower by some casinos; the game's own help screen shows the figure that applies. 18+ only.
The two free spins rounds explained
Three, four or five scatters award 10, 15 or 20 free spins. Fish symbols carry money values from 2x to 5,000x, but they only pay when the Fisherman wild lands alongside them during the feature and collects them. Every fourth Fisherman collected retriggers 10 more spins and moves the money multiplier up a step: x2, then x3, then x10.
The card pick is where the Golden Lake name comes in. It can send you into Golden Lake Free Spins, a mode with the regular pay symbols removed, so the reels are left to fish, wilds and other feature symbols. That raises the share of spins where something can be collected, though it does not promise a large result.
RTP builds, ante bet and the bonus buy
The 96.07% figure is the main build. Pragmatic also supplies versions at 95.07% and 94.07%, and the casino chooses which one to run, so the info screen inside the game is the place to confirm the return in front of you. A one-point gap looks small, but over a long run of spins it is roughly an extra penny kept from every £1 staked.
The Ante Bet adds 50% to the cost of each spin in exchange for more scatter chances. It changes how often the feature arrives, not the underlying odds of any one spin paying well. The game's feature list also includes Buy Free Spins at 100x the stake for a random type, or 270x for Golden Lake Free Spins. Whether a buy option appears in the version a GB casino offers depends on that casino's build, so check the game's own help pages rather than assuming it is there.
Stake range and the GB spin cap
The spec card lists stakes from £0.10 up to £250 a spin. In Great Britain the upper end does not apply: since 9 April 2025 online slots at licensed casinos are capped at £5 per game cycle, and since 21 May 2025 the cap is £2 for customers aged 18 to 24. If you switch the Ante Bet on, it raises what each spin costs, so the total still has to sit within your limit. The slot stake limits guide covers how the cap works.
Big Bass Secrets of the Golden Lake demo and free play
This site does not embed a playable copy. Pragmatic Play lists the game on its own website, and a GB-licensed casino can open demo mode only for a customer whose age and identity it has already verified, a rule in place since May 2019. Free play shows how often the card pick lands on Golden Lake Free Spins; it predicts nothing about a paid session.
Bonus spins on Big Bass games
Licensed casinos often attach bonus spins to Big Bass titles. When they do, the significant terms set the spin value, the eligible game, expiry and any cap on winnings, and since 19 January 2026 wagering on bonus funds cannot exceed 10 times the bonus. The free spins bonuses page compares the common formats, and the wider online slots hub lists the rest of the series.
18+ only. Decide on a budget before you start and see the responsible gambling page for limits, time-outs and free support.
UK-licensed casinos, ranked by our score
Order = score out of 10. Every operator holds a Gambling Commission licence.
| # | Casino | Score | Welcome offer and significant terms | Payments | Links |
|---|---|---|---|---|---|
| Place 1 |  MrQTek Fox Ltd | Score: 8.5 out of 10, very good | 100 bonus spins on Big Bass Splash with the first £10 deposit, no wagering Significant terms First deposit £10; spins on Big Bass Splash at 10p; use within 48 hours; winnings uncapped and paid as cash (no wagering) |
| Visit MrQ (opens the operator site in a new tab)Read the review: MrQ |
| Place 2 |  MONOPOLY CasinoGamesys Operations Limited | Score: 8.5 out of 10, very good | 30 bonus spins on MONOPOLY Cash Is King after a £10 deposit and £10 slots wager Significant terms Min £10 deposit and £10 wager on slots; 30-day expiry from deposit; spins on MONOPOLY Cash Is King at 1p x 10 lines; free-spin winnings paid as cash; sports, bingo and live casino wagering do not count |
| Visit MONOPOLY Casino (opens the operator site in a new tab)Read the review: MONOPOLY Casino |
| Place 3 |  Pub CasinoL & L Europe Limited | Score: 7.4 out of 10, good | 50 cash spins on Octobeer Fortunes after depositing and wagering £10 Significant terms Deposit and wager £10; activate before depositing; spins £0.20 each, winnings paid as cash, no max cash out; Skrill deposits excluded; spins expire in 48 hours |
| Visit Pub Casino (opens the operator site in a new tab)Read the review: Pub Casino |
| Place 4 |  NetBetNetbet Enterprises Limited | Score: 7.8 out of 10, good | 100 bonus spins on Big Bass Splash after a £10 slot stake Significant terms £10 min deposit; opt in and bet £10 on slots; spins 10p on Big Bass Splash, valid 7 days; winnings paid as cash, max win £100 |
| Visit NetBet (opens the operator site in a new tab)Read the review: NetBet |
| Place 5 |  Bella CasinoRank Interactive (Gibraltar) Limited | Score: 7.9 out of 10, good | 100 bonus spins on Kong 3 Even Bigger Bonus when you deposit and stake £10 Significant terms New players; min deposit £10 (Paysafecard excluded) and £10 stake on Kong 3 Even Bigger Bonus; 10x wagering; max win £200 |
| Visit Bella Casino (opens the operator site in a new tab)Read the review: Bella Casino |
Ad We may earn a commission if you open an account through links on this page; it does not change our scores or the order of operators. How we score · Advertising disclosure
Questions readers ask
What is the RTP of Big Bass Secrets of the Golden Lake?
The main build returns 96.07%. Pragmatic Play also offers 95.07% and 94.07% builds, and the casino picks which one to use, so check the in-game info screen.
How do you reach Golden Lake Free Spins?
A card pick decides the free spins type. Golden Lake Free Spins is the version with the regular pay symbols taken off the reels.
Is there a bonus buy in Big Bass Secrets of the Golden Lake?
The feature list includes Buy Free Spins at 100x for a random type or 270x for Golden Lake Free Spins. Whether a GB casino's version offers it depends on that build, so read the game's help screen.
Can I play the Big Bass Secrets of the Golden Lake demo without signing up?
Not at a GB-licensed casino. Operators must check your age and identity before you play any free version of their games. The provider's own site may show the game.
What is the most I can stake per spin in the UK?
£5 per spin at GB-licensed casinos, or £2 if you are aged 18 to 24, even though the game itself lists stakes up to £250.