In brief: Big Bass Bonanza has a default RTP of 96.71%, high volatility and a maximum win of 2,100x the stake.
Key facts
| Detail | Big Bass Bonanza |
|---|
| Developer | Pragmatic Play |
|---|
| Default RTP | 96.71% |
|---|
| Volatility | High |
|---|
| Layout | 5 reels, 3 rows |
|---|
| Ways to win | 10 paylines |
|---|
| Maximum win | 2,100x |
|---|
| Top prize at the £5 stake limit | £10,500 |
|---|
How it plays
Pragmatic Play's fishing slot. Ten paylines and one feature: three scatters award ten or more free spins, in which a fisherman collects the cash value on every fish. Every fourth fisherman adds spins and a multiplier up to 10x.
The maths
High volatility with a 96.71% default RTP, the highest of the seven popular slots we list. PlayOJO's 80 welcome spins play on it.
What it costs
| Staked | Average cost |
|---|
| £20 (100 spins at 20p) | £0.66 |
|---|
| £100 | £3.29 |
|---|
At the default RTP. A single session can differ widely.
In Britain
£5 maximum stake (£2 for ages 18 to 24), no autoplay, no bonus buy.
Big Bass Bonanza slot sites
Pragmatic Play games are reported at PlayOJO, Coral, Ladbrokes, Casumo and 10bet. Search the lobby to confirm.
Ad 18+ only. We may earn commission from these links. Advertiser disclosure
PlayOJO ★ 4.2 out of 5
80 free spins, no wagering
No wageringFree spins
- Wagering
- None
- Minimum
- £10
- Time limit
- See offer terms
- Worked value
- 80 spins at £0.10 (£8 in spins)
Significant terms: 18+. First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. BeGambleAware.org
Coral Casino ★ 4.3 out of 5
Bet £10 on slots, get 100 free spins
No wageringFree spins
- Wagering
- None
- Minimum
- £10
- Time limit
- 48 hours to accept, then 7 days
- Worked value
- 100 spins at £0.10 (£10 in spins)
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. BeGambleAware.org
Ladbrokes Casino ★ 4.2 out of 5
Play £10 on slots, get up to 500 free spins
No wageringFree spins
- Wagering
- None
- Minimum
- £10
- Time limit
- Claim daily for 10 days; each batch valid 7 days
- Worked value
- Up to 500 spins at £0.10 (up to £50 in spins)
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. BeGambleAware.org
Other popular slots
| Slot | Developer | Default RTP | Volatility | Max win |
|---|
| Big Bass Bonanza | Pragmatic Play | 96.71% | High | 2,100x |
|---|
| Starburst | NetEnt | 96.09% | Low | 500x |
|---|
| Sweet Bonanza | Pragmatic Play | Varies by version (96.48% to 96.51% quoted) | High | 21,100x |
|---|
| Gates of Olympus | Pragmatic Play | 96.50% | High | 5,000x |
|---|
| Book of Dead | Play'n GO | 96.21% | High | 5,000x |
|---|
| Fishin' Frenzy | Blueprint Gaming (Reel Time Gaming) | 96.12% | Medium to high | 5,000x |
|---|
| Fluffy Favourites | Eyecon | 95.39% | High | 5,000x |
|---|
More slots pages: Sweet Bonanza UK, Fluffy Favourites UK and Free slots UK.
Offer terms dated 5 October 2026, from each casino's published conditions. Other casino details are reported by independent reviews. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
