Quick verdict: Big Bass Halloween is Pragmatic Play’s spooky take on its Big Bass fishing series, released in October 2023. It uses the familiar 5×3 grid with 10 paylines and the fisherman-collects-fish free spins, with a 2,100x max win. Most sources list the RTP at 96.06%, and volatility is medium-high.
Demo tested on mobile by Jason Thompson on 16 October 2026: it loaded and worked.
Top-rated casino for Big Bass Halloween
Our recommended casino for Big Bass Halloween is 1win. It holds our top score of 9.9/10.
Play at 1win18+. T&Cs apply. Not available in every country. Game libraries vary, so search the lobby for Big Bass Halloween.
Big Bass Halloween at a glance
| Provider | Pragmatic Play (with Reel Kingdom) |
|---|---|
| Released | October 2023 |
| Layout | 5 reels, 3 rows, 10 paylines |
| RTP | 96.06% in most listings (one source lists 96.25%) |
| Volatility | Medium-high to high |
| Max win | 2,100x your bet |
| Free spins | 10, 15 or 20 |
| Top free spins multiplier | 10x |
How Big Bass Halloween works
Wins pay on 10 paylines. The Fisherman wild substitutes for paying symbols, and Money Fish symbols carry cash values on every spin. A random base-game feature can add fish to the reels when a Fisherman lands without any fish on screen.
Free spins
Land 3, 4 or 5 scatters to win 10, 15 or 20 free spins. Each Fisherman that lands collects every fish value on screen. Every 4th Fisherman retriggers 10 more spins and raises the multiplier on collected values, up to 10x. Where allowed, you can buy the feature; bonus buys are not available in some countries, including the UK.
The Big Bass Halloween sequels
Pragmatic has released a new Halloween edition every October since: Big Bass Halloween 2 (2024) and Big Bass Halloween 3 (2025) both raise the max win to 5,000x. See our best Halloween slots for the full list.
Big Bass Halloween RTP and volatility
Most sources list the RTP at 96.06%, a house edge of about 3.9%; one lists 96.25%, and some casinos run lower versions, so check the info screen. Volatility is medium-high, lower than many Pragmatic slots, so wins come a bit more often but the 2,100x cap is modest.
Tips for playing Big Bass Halloween
- Check the RTP version in the info screen.
- Try the demo to see how fish collection works.
- Treat the bonus buy as a high-risk stake.
- Want a bigger max win? Try Big Bass Halloween 2 or 3 (5,000x).
- Find more seasonal games in our Halloween slots guide.
Slots like Big Bass Halloween
- Big Bass Bonanza: the original fishing slot.
- Bigger Bass Bonanza: a 5×4 version with a 4,000x max win.
- Big Bass Splash: adds random modifiers.
- Halloween Fortune: a classic Playtech Halloween slot.
Where to play Big Bass Halloween
1win is the casino we rate highest (9.9/10), and our June 2026 crypto cash-out from it took 15 minutes. Big Bass Halloween is a seasonal Pragmatic Play release; search the 1win lobby for “Big Bass Halloween” to find all three editions, or see our Halloween slots guide. New players can use promo code Ultragambler (see our 1win promo code page). Most sources list 96.06%, so check the info screen.
Big Bass Halloween FAQs
What is the RTP of Big Bass Halloween?
Most sources list 96.06%; one lists 96.25%. Check the info screen at your casino.
What is the max win on Big Bass Halloween?
2,100x your bet.
How many free spins can you get?
10, 15 or 20 for 3, 4 or 5 scatters, with 10 more each time you collect 4 Fisherman wilds.
Is there a Big Bass Halloween 2?
Yes. Big Bass Halloween 2 came out in October 2024 and Big Bass Halloween 3 in October 2025, both with a 5,000x max win.
When was Big Bass Halloween released?
October 2023.
Important: check your local laws before you play
Online gambling laws differ from country to country, and in some places it is restricted or not permitted at all. Check that online gambling is legal where you live and that the casino accepts players from your country. You must be 18 or older (or the legal gambling age in your country, if higher). Only gamble with money you can afford to lose.
