Bubble Brawl slot: RTP and max win
Bubble Brawl is a medium-volatility slot by Kraken Games on Stake Engine, released 4 Aug 2026. Its base game returns 96.07%, above the median Engine slot (96.02%) and higher than 52% of them. The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 2,500,000 spins. It has 5 bonus buys priced at 25× to 500× the bet; the best returns 96.52%, so each buy costs 6.96× the bet on average over the long run. It is the No. 5862 most played Engine slot over the last 30 days.
Every mode, side by side
Costs are multiples of the base bet. Odds come from the published outcome table for v31. "Returns the cost" counts rounds that pay back at least what the mode cost. Expected cost is cost × (1 − RTP): the average amount lost per round over the long run.
| Mode | Type | Cost | RTP | Max win | Max win odds | Pays anything | Returns the cost | Expected cost per round | |
|---|---|---|---|---|---|---|---|---|---|
| Base Game | Base spin | 1.00× | 96.07% | 25,000× | 1 in 2,500,000 | 1 in 3.46 | 1 in 11 | 0.04× base | Simulate |
| Scatter Storm | Boosted spin | 3.00× | 96.45% | 25,000× | 1 in 833,333 | 1 in 3.38 | 1 in 50 | 0.11× base | Simulate |
| Kraken Attack | Bonus buy | 25× | 96.49% | 25,000× | 1 in 10,964 | – | 1 in 34 | 0.88× base | Simulate |
| Shark Fury | Bonus buy | 25× | 96.48% | 25,000× | 1 in 11,672 | – | 1 in 27 | 0.88× base | Simulate |
| Marine Patrol | Bonus buy | 100× | 96.48% | 25,000× | 1 in 25,000 | – | 1 in 3.20 | 3.52× base | Simulate |
| Golden Shipwreck | Bonus buy | 200× | 96.52% | 25,000× | 1 in 12,500 | – | 1 in 3.00 | 6.96× base | Simulate |
| Abyss Storm | Bonus buy | 500× | 96.41% | 25,000× | 1 in 5,000 | – | 1 in 4.08 | 17.98× base | Simulate |
Work out the cost of Bubble Brawl bonus buys at your bet size
Version history
Base-mode RTP per published math version. Older versions stay public in the fairness API, so changes can be checked.
| Version | Base RTP | |
|---|---|---|
| v31 | 96.073% | Active |
Frequently asked
What is the RTP of Bubble Brawl?
Base spins return 96.07% of the amount wagered over the long run, from the published outcome table for version 31. Its bonus buys return between 96.41% and 96.52%.
What is the max win in Bubble Brawl and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 2,500,000 spins. In the Golden Shipwreck buy (200×) 25,000× lands 1 in 12,500 buys.
Does Bubble Brawl have a bonus buy, and what does it cost?
Yes, 5 buy modes. Kraken Attack: 25× the base bet, 96.49% RTP, an expected cost of 0.88× the base bet per buy. Shark Fury: 25× the base bet, 96.48% RTP, an expected cost of 0.88× the base bet per buy. Marine Patrol: 100× the base bet, 96.48% RTP, an expected cost of 3.52× the base bet per buy. Golden Shipwreck: 200× the base bet, 96.52% RTP, an expected cost of 6.96× the base bet per buy. Abyss Storm: 500× the base bet, 96.41% RTP, an expected cost of 17.98× the base bet per buy.
Is Bubble Brawl high or low volatility?
Medium. Its base-mode standard deviation is 18.8× the bet, which puts it in the middle third of Engine games. What volatility means.
Can I check that a result was fair?
Yes. Engine games use provably fair seeds. Once your server seed is revealed you can replay any round against the published outcome table. See how to verify a result.
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