100% Casino Bonus Up To £50 + 50 Bonus Spins
Good to know: 10x wagering and a £1 max bet. Use your spins within 48 hours.
18+. New UK customers. First deposit only. Min deposit £10. Code NERO100. BeGambleAware.org. Full T&Cs
Best Christmas Big Bass Slots 2026
We ranked 5 Christmas Big Bass slots from Pragmatic Play. Our pick is Big Bass Christmas Bash. It has a 96.71% RTP and a 5,000x max win.
Stake £20 & Get 150 Free Spins
Good to know: Opt in when you sign up and stake £20 to unlock the spins. You get 50 a day for 3 days. The offer lasts 7 days from sign-up.
18+. New UK customers. Opt in. Deposit and stake £20. Debit card only. No wagering on spin winnings. 7 day offer. Spins expire after 7 days. BeGambleAware.org. Full T&Cs
Hippodrome Casino
3.7 Big Bass Score100% deposit match up to £100 + 100 free spins on Big Bass Bonanza
Good to know: Deposit £20 by debit card within 7 days of signing up. The bonus has 10x wagering and lasts 30 days. Spin winnings have no wagering.
New customers only, 18+. Opt in when you sign up and deposit £20 or more by debit card within 7 days. Get a 100% match bonus up to £100 with 10x wagering, valid for 30 days. Stake £20 on slots to get 100 free spins on Big Bass Bonanza at 20p each. Free spin winnings have no wagering. Full T&Cs apply. BeGambleAware.org Full T&Cs
Good to know: Pick the offer when you sign up and stake £20 within 7 days to unlock the spins. You get 50 a day for 3 days. Use each batch within 7 days.
18+. New UK customers. Select the offer. Deposit and stake £20 within 7 days. Debit card only. No wagering on spin winnings. Spins expire after 7 days. BeGambleAware.org. Full T&Cs
The Christmas games compared
Each game has a winter theme and the Big Bass fishing bonus. The RTP, max win and features are different, so it is worth comparing them.
- RTP
- 96.71%
- Max win
- 5,000x
- Volatility
- High
- Released
- Nov 2023
- RTP
- 96.07%
- Max win
- 10,000x
- Volatility
- High (5/5)
- Released
- Nov 2024
- RTP
- 96.07%
- Max win
- 5,000x
- Volatility
- High (5/5)
- Released
- Nov 2025
- RTP
- 96.71%
- Max win
- 2,100x
- Volatility
- Not listed
- Released
- Dec 2021
- RTP
- 96.08%
- Max win
- 4,000x
- Volatility
- High
- Released
- Nov 2022
| Game | RTP | Max win | Volatility | Released |
|---|---|---|---|---|
 Big Bass Christmas Bash | 96.71% | 5,000x | High | Nov 2023 |
 Big Bass Xmas Xtreme | 96.07% | 10,000x | High (5/5) | Nov 2024 |
 Big Bass Christmas Frozen Lake | 96.07% | 5,000x | High (5/5) | Nov 2025 |
 Christmas Big Bass Bonanza | 96.71% | 2,100x | Not listed | Dec 2021 |
 Bigger Bass Blizzard: Christmas Catch | 96.08% | 4,000x | High | Nov 2022 |
The 5 ranked
Top RTP of 96.71%, a 5,000x max win and five modifiers that can boost the bonus.
RTP 96.71%. Max win 5,000x.
The biggest max win of the five at 10,000x, with multipliers up to 50x.
RTP 96.07%. Max win 10,000x.
3. Big Bass Christmas Frozen Lake
The newest, with two bonus modes, one packed with Wilds and money symbols.
RTP 96.07%. Max win 5,000x.
The original Christmas Big Bass game, simple to play with a 96.71% RTP.
RTP 96.71%. Max win 2,100x.
5. Bigger Bass Blizzard: Christmas Catch
A bigger 5x4 grid with 12 lines, but the second lowest max win at 4,000x.
RTP 96.08%. Max win 4,000x.
How we ranked them
We weighed four things: max win, RTP, bonus features and how new the game is.
Best Big Bass Slots 2026 · See every game in our Big Bass Slots Guide
Casinos can choose a lower RTP setting for these games. Check the game's info screen to see the figure at your site.
Where to play Christmas Big Bass slots in the UK
These UK-licensed sites carry Pragmatic Play games. Game lists change, so check the site has Big Bass Christmas Bash before you sign up. Offers are for new players. 18+. T&Cs apply.
Midnite
4.3 Big Bass ScoreGood to know: Bet at least £20. No wagering on spin winnings. Use the spins within 7 days.
18+. New UK customers. Bet £20 on eligible slots within 14 days of sign-up. No wagering. 7 day expiry. BeGambleAware.org. Full T&Cs
Good to know: Stake £20 to unlock the spins. You get 50 a day for 3 days. Use them within 7 days.
18+. New UK customers. Select offer at sign-up. Deposit and stake £20 within 7 days. Debit card only. No wagering on spin winnings. Spins expire after 7 days. BeGambleAware.org. Full T&Cs
Betfair Casino
4.1 Big Bass Score150 Free Spins on Big Bass Games
Good to know: Deposit and spend £10 on eligible Big Bass games to unlock them.
18+. New casino customers. Code CASP10. Deposit and spend £10. 150 spins at 10p on selected Big Bass games. Spins expire after 7 days. E-wallets except Apple Pay excluded. BeGambleAware.org. Full T&Cs
NetBet
4.0 Big Bass ScoreNo wageringGood to know: Bet £10 on slots to unlock them. Wins from the spins go up to £100.
18+. New players. Opt in and wager £10 on slots. Max win £100. Spins expire in 7 days. BeGambleAware.org. Full T&Cs
Parimatch
4.0 Big Bass ScoreGood to know: Deposit and wager £20 to unlock the spins. Use them within 7 days.
18+. New UK customers. Deposit and wager £20 within 7 days. No wagering on spins. 7 day expiry. BeGambleAware.org. Full T&Cs
Sky Vegas
4.0 Big Bass Score70 free spins with no depositGood to know: Spend £10 to get the other 200. Use your spins within 7 days.
18+. New Sky Betting and Gaming customers. Deposit and spend £10 for the extra 200 spins. No wagering on spin winnings. 7 day expiry. BeGambleAware.org. Full T&Cs
Unibet
3.9 Big Bass ScoreGood to know: Stake £30 on slots to unlock the spins. Wins from the spins have 10x wagering. Use your spins within 48 hours.
18+. New GB customers. Opt in and stake £30 on slots. 10x wagering on spin winnings. Spins expire in 48 hours. BeGambleAware.org. Full T&Cs
888 Casino
3.9 Big Bass ScoreGood to know: Deposit at least £10. Wager the bonus 10 times within 5 days. Wins go up to £100.
18+. New UK customers. Min deposit £10. 10x wagering within 5 days. Max win £100. BeGambleAware.org. Full T&Cs
bet365
Top pick3.9 Big Bass ScoreGood to know: Deposit at least £10. No wagering on spin wins. Use your spins within 7 days.
18+. New UK customers. Min deposit £10. No wagering on spin winnings. Spins expire in 7 days. BeGambleAware.org. Full T&Cs
MrQ
3.9 Big Bass ScoreGood to know: Deposit £10 to unlock the spins. Use them within 48 hours.
18+. New UK customers. Min deposit £10. No wagering. Spins expire in 48 hours. BeGambleAware.org. Full T&Cs
Casumo
3.8 Big Bass ScoreGood to know: Deposit at least £20. Wager the bonus 10 times. Use it within 7 days.
18+. New UK customers. Min deposit £20. 10x wagering on the bonus. Bonus valid for 7 days. BeGambleAware.org. Full T&Cs
Stake £20 & Get 150 Free Spins
Good to know: Opt in when you sign up and stake £20 to unlock the spins. You get 50 a day for 3 days. The offer lasts 7 days from sign-up.
18+. New UK customers. Opt in. Deposit and stake £20. Debit card only. No wagering on spin winnings. 7 day offer. Spins expire after 7 days. BeGambleAware.org. Full T&Cs
Paddy Power
3.7 Big Bass Score60 free spins with no depositGood to know: 60 free spins with no deposit. Bet £10 for 200 more. Use your spins within 7 days.
18+. New UK customers. Code PGCDE1. Deposit and bet £10 for 200 more spins. No wagering. 7 day expiry. BeGambleAware.org. Full T&Cs
Hippodrome Casino
3.7 Big Bass Score100% deposit match up to £100 + 100 free spins on Big Bass Bonanza
Good to know: Deposit £20 by debit card within 7 days of signing up. The bonus has 10x wagering and lasts 30 days. Spin winnings have no wagering.
New customers only, 18+. Opt in when you sign up and deposit £20 or more by debit card within 7 days. Get a 100% match bonus up to £100 with 10x wagering, valid for 30 days. Stake £20 on slots to get 100 free spins on Big Bass Bonanza at 20p each. Free spin winnings have no wagering. Full T&Cs apply. BeGambleAware.org Full T&Cs
William Hill
3.6 Big Bass ScoreGood to know: Use code WHV200. Spin wins have 10x wagering and go up to £30. Use your spins within 72 hours.
18+. New UK customers. Code WHV200. Min deposit £10. 10x wagering. Max win £30. Spins expire in 72 hours. BeGambleAware.org. Full T&Cs
Good to know: Pick the offer when you sign up and stake £20 within 7 days to unlock the spins. You get 50 a day for 3 days. Use each batch within 7 days.
18+. New UK customers. Select the offer. Deposit and stake £20 within 7 days. Debit card only. No wagering on spin winnings. Spins expire after 7 days. BeGambleAware.org. Full T&Cs
18+ New customers only. Bonus terms and contribution rates vary by operator. Always check full terms before claiming. BeGambleAware.org | GamCare.org.uk | GamStop.co.uk
Christmas Big Bass slots: frequently asked questions
What is the best Christmas Big Bass slot?
Our pick is Big Bass Christmas Bash. It mixes a high RTP, a 5,000x max win and bonus modifiers.
Which Christmas slot has the highest RTP?
Big Bass Christmas Bash and Christmas Big Bass Bonanza both have a 96.71% RTP at their top setting. Some sites use lower versions, so check the game info screen.
Which Christmas slot has the biggest max win?
Big Bass Xmas Xtreme, at 10,000x your stake.
What is the newest Christmas Big Bass slot?
Big Bass Christmas Frozen Lake. It came out on 26 November 2025.
Are these games available at UK casinos?
Yes. You can play them at UKGC-licensed sites that carry Pragmatic Play slots.