Big Bass Bonanza vs Gates of Olympus

Big Bass Bonanza and Gates of Olympus, compared spin for spin.

Ryan JessopBy Ryan Jessop. Last checked .

Key takeaways

  • Big Bass Bonanza: 96.71%, high, 2,100x.
  • Gates of Olympus: 96.50%, high, 5,000x.
  • RTP gap: 0.21 points.
  • Both have a £5 maximum stake in Britain.

Short answer: Both Pragmatic Play, both high volatility. Big Bass Bonanza uses ten paylines; Gates of Olympus is a pays-anywhere grid with tumbles.

Side by side

DetailBig Bass BonanzaGates of Olympus
DeveloperPragmatic PlayPragmatic Play
Default RTP96.71%96.50%
VolatilityHighHigh
Layout5 reels, 3 rows6 reels, 5 rows
Ways to win10 paylinesPays anywhere (8 or more matching symbols)
Maximum win2,100x5,000x
Top prize at £5£10,500£25,000

Features compared

AspectBig Bass BonanzaGates of Olympus
Trigger and rewardThree, four or five scatters award 10, 15 or 20 free spins.Four or more scatters award 15 free spins.
What makes it payA fisherman wild can land on any free spin and collects the cash value of every fish on screen. Every fourth fisherman adds 10 spins and raises the multiplier on fish values, up to 10x.Multipliers become cumulative: each orb that lands in a winning sequence adds to a running total that applies to later wins in the round.

What 100 spins cost

StakeBig Bass BonanzaGates of Olympus
£0.1£0.33£0.35
£0.2£0.66£0.7
£1£3.29£3.5

The gap is £0.21 on every £100 staked, on average, over the long run.

How they feel

Big Bass is the calmer screen: reels stop, lines pay or do not. Gates rarely sits still, with tumbles and orbs on many spins. Neither pays more often in any meaningful sense; they simply present waiting differently.

Which should you play?

Choose Big Bass Bonanza if

you prefer classic reels and a higher default RTP.

Choose Gates of Olympus if

you prefer a busy grid and a higher ceiling.

Full reviews

Big Bass BonanzaPragmatic PlayRTP 96.71%Volatility HighMax win 2,100xGates of OlympusPragmatic PlayRTP 96.50%Volatility HighMax win 5,000x

Where to play

Ad 18+ only. We may earn commission from these links. Advertiser disclosure

Coral Casino logo

Coral Casino 4.3 out of 5

Bet £10 on slots, get 100 free spins

No wageringFree spins

Claim at Coral (advert, opens in a new tab)18+. New customers. T&Cs apply.
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

Read the Coral review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

Ladbrokes Casino logo

Ladbrokes Casino 4.2 out of 5

Play £10 on slots, get up to 500 free spins

No wageringFree spins

Claim at Ladbrokes (advert, opens in a new tab)18+. New customers. T&Cs apply.
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

Read the Ladbrokes review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

PlayOJO logo

PlayOJO 4.2 out of 5

80 free spins, no wagering

No wageringFree spins

Claim at PlayOJO (advert, opens in a new tab)18+. New customers. T&Cs apply.
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

Read the PlayOJO review Licence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.

More slot match-ups: Starburst vs Big Bass Bonanza, Book of Dead vs Fishin' Frenzy and Big Bass Bonanza vs Fishin' Frenzy.

Slot figures are developers' published defaults, each confirmed against two sources; your casino may run a lower RTP. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.

Frequently asked questions

Which is better, Big Bass Bonanza or Gates of Olympus?

Big Bass Bonanza if you prefer classic reels and a higher default RTP; Gates of Olympus if you prefer a busy grid and a higher ceiling.

Which has the higher RTP?

Big Bass Bonanza, at 96.71% by default.

Which has the bigger maximum win?

Gates of Olympus.

Can I play both at one casino?

Where both studios are in the lobby; search to confirm.

Big Bass Bonanza slot reviewBig Bass Bonanza slot reviewed for UK players.Gates of Olympus slot reviewGates of Olympus slot reviewed for UK players.Compare slotsCompare any two online slots side by side.

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