Big Bass Halloween
Certified by the HGC (HGC-015715-TM)
Images: Pragmatic Play
Data source: iGaming Tools (25 July 2026)
Free play · rotates to fullscreen
Demos are only available to people aged 21 and over.
Demo provided by the game studio via iGaming Tools. Free play only, no real money.
How it playsHow Big Bass Halloween plays
This page is compiled from the provider’s published data and the HGC register. It is not a review: we have not tested Big Bass Halloween yet, so it has no score.
Big Bass Halloween is a Pragmatic Play slot with 5 reels and 3 rows and 10 paylines. It was released in October 2023. It is themed around fishing.
It is certified by the HGC for online play in Greece, certificate HGC-015715-TM; last updated in the register on 15 November 2023.
Big Bass Halloween combines free spins and bonus buy. 71 other slots of the 593 with data in our catalogue have exactly the same combination.
RTP 96.06%: what it means
The RTP (return to player) of Big Bass Halloween is 96.06%. Over a very large number of spins the game theoretically pays back €96.06 for every €100 staked; the remaining €3.94 (3.94%) is the house edge. RTP is an average over millions of spins. A single session can end very differently — and in the long run the casino wins.
That is below the median RTP (96.5%) of the 593 slots with data in our catalogue — higher than 13% of them. Across the 507 Pragmatic Play slots we track, the median RTP is 96.5%. 96.06% is the default value published by Pragmatic Play; a casino may offer Big Bass Halloween in a version with a different RTP, so check the game’s info screen.
Volatility: high
The provider rates the volatility of Big Bass Halloween as “high”. Wins are rarer and concentrated in the bonus rounds. Long losing stretches are expected, so a balance can run out quickly.
Of the other 506 Pragmatic Play slots in our catalogue, 434 share this level with Big Bass Halloween.
Max win: 2,100×
The top prize on Big Bass Halloween is 2,100× the stake, i.e. €2,100 at a €1 stake. It is a ceiling reached extremely rarely — not a win anyone should expect. That is below the median (7,500×) of the 544 slots in our catalogue that publish a max win; 508 are higher.
Bet range
We do not have an official bet range for Big Bass Halloween yet. Before playing, check the minimum and maximum stake in the game’s info screen.
Bonus features
Free spins
Usually triggered by scatter symbols, they give you spins you are not charged for; their wins are credited to your balance as normal. In Big Bass Halloween it comes together with bonus buy. Found in 489 of the 593 slots with data in our catalogue and in 416 of Pragmatic Play’s 507.
Bonus buy
The bonus round can be bought outright at a price that is a multiple of the stake — often tens or hundreds of times. That means much more money is staked in a short time; whether it is offered depends on the casino. In Big Bass Halloween it comes together with free spins. Found in 450 of the 593 slots with data in our catalogue and in 394 of Pragmatic Play’s 507.
Frequently asked questions
What is the RTP of Big Bass Halloween?
The RTP of Big Bass Halloween is 96.06%, according to the provider (Pragmatic Play). That is a house edge of 3.94% over the long run; a single session can differ a lot.
Is Big Bass Halloween certified in Greece?
Yes. The HGC has certified Big Bass Halloween for online play, certificate HGC-015715-TM (last updated in the register on 15 November 2023). You can check it with the “Is this slot certified in Greece?” search on frut.gr or in the HGC’s public register.
What is the max win on Big Bass Halloween?
2,100× the stake, according to the provider. It is a theoretical ceiling that is reached very rarely.
How volatile is Big Bass Halloween?
“High”, according to the provider. Wins are rarer and concentrated in the bonus rounds.
What bonus features does Big Bass Halloween have?
According to the provider: free spins and bonus buy.
Can I play Big Bass Halloween for free?
Yes, in the demo on this page, with play money and only after confirming you are 21+.
Similar slots
Big Bass Halloween compared
The most closely related slots in our catalogue, by provider, volatility, theme and features:
| Slot | RTP | Volatility | Max win | Grid |
|---|---|---|---|---|
| Big Bass Halloween | 96.06% | high | 2,100× | 5×3 |
| Big Bass - Secrets of the Golden Lake | 96.07% | high | 5,000× | 5×3 |
| Big Bass Amazon Xtreme | 96.07% | high | 10,000× | 5×3 |
| Big Bass Blast | 96.5% | high | 5,000× | 5×3 |
Compared with Big Bass - Secrets of the Golden Lake (Pragmatic Play), Big Bass Halloween has an RTP 0.01 points lower, the same volatility and a max win 2.4 times lower. Both have free spins and bonus buy.
Compared with Big Bass Amazon Xtreme (Pragmatic Play), Big Bass Halloween has an RTP 0.01 points lower, the same volatility and a max win 4.8 times lower. Both have free spins and bonus buy. Only Big Bass Amazon Xtreme has multipliers.
Compared with Big Bass Blast (Pragmatic Play), Big Bass Halloween has an RTP 0.44 points lower, the same volatility and a max win 2.4 times lower. Both have free spins and bonus buy. Only Big Bass Blast has multipliers.
Game images: their respective studios.