VerdictPragmatic Play makes three of the seven slots we track: Big Bass Bonanza, with Reel Kingdom, Sweet Bonanza and Gates of Olympus. Its games are carried by most large licensed casinos; search each lobby for the title you want.
Its best-known slot
Big Bass Bonanza: 96.71% RTP by default, high volatility, top prize 2,100x.
The five casinos
| Casino | Reported library | Slots and games |
|---|
| Casumo | 3,500+ games | 9.0/10 |
|---|
| Coral | 2,000+ games (some reports put it far higher) | 8.5/10 |
|---|
| Ladbrokes | 2,000+ games | 8.5/10 |
|---|
| PlayOJO | 2,000+ games (reports range to 7,000 and above) | 8.5/10 |
|---|
| 10bet | 2,000+ games (reports range from 1,200) | 8.0/10 |
|---|
Worth knowing
Its slots are usually high volatility, and several are supplied in more than one RTP version, so the help screen matters. Game suppliers to British casinos are licensed too, and their games are tested before release.
Pragmatic Play in the lobby
Pragmatic Play releases new slots more often than almost any other studio and is behind several of the most played games in Britain. Three of the seven we track are its work, and they show its range: a fishing slot on ten lines, and two six-by-five grids that pay for eight or more matching symbols anywhere. All three are high volatility. The studio also runs a live casino arm. Its slots are commonly supplied at several return settings, and sources quote more than one default for Sweet Bonanza, which is the clearest reason to read the figure in the game itself.
Where to play
Ad 18+ only. We may earn commission from these links. Advertiser disclosure
Casumo ★ 4.2 out of 5
50% bonus up to £100
10x wageringMatched deposit
- Wagering
- 10x bonus
- Minimum
- £20
- Time limit
- 7 days to complete wagering
- Worked value
- Deposit £200, get £100 bonus
Significant terms: 18+. New customers only. Opt-in required. 50% deposit bonus up to £100 on first deposit. Minimum deposit £20. 10x wagering on the bonus amount. Maximum bet or spin £5. Bonus valid for 7 days. Game, play and payment method restrictions apply. 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
Keep reading: Online slots UK, Debit card casinos UK and Instant withdrawal casinos UK.
Scores are desk-based: they draw on each casino's published terms, the public register and recent independent reviews, not on real-money accounts. Where scores tie we say so and name the tie-break. Offer terms dated 5 October 2026. How we score. 18+. Free help: 0808 8020 133 or safer gambling.
