Big Bunker Bounty slot: RTP and max win
Big Bunker Bounty is a medium-volatility slot by Hypnos Inc on Stake Engine, released 12 Aug 2026. Its base game returns 95.50%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 499,981 spins. It has 3 bonus buys priced at 100× to 500× the bet; the best returns 95.48%, so each buy costs 4.52× the bet on average over the long run. It is the No. 6352 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 v3. "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 | Base spin | 1.00× | 95.50% | 10,000× | 1 in 499,981 | 1 in 7.58 | 1 in 48 | 0.04× base | Simulate |
| Bonus Hunt | Boosted spin | 2.00× | 95.50% | 10,000× | 1 in 249,991 | 1 in 7.58 | 1 in 28 | 0.09× base | Simulate |
| Free Spins 3 | Bonus buy | 100× | 95.48% | 10,000× | 1 in 5,001 | – | 1 in 9.77 | 4.52× base | Simulate |
| Free Spins 4 | Bonus buy | 200× | 95.46% | 10,000× | 1 in 2,501 | – | 1 in 8.93 | 9.08× base | Simulate |
| Free Spins 5 | Bonus buy | 500× | 95.42% | 10,000× | 1 in 1,251 | – | 1 in 4.57 | 22.88× base | Simulate |
Work out the cost of Big Bunker Bounty 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 | |
|---|---|---|
| v3 | 95.504% | Active |
Frequently asked
What is the RTP of Big Bunker Bounty?
Base spins return 95.50% of the amount wagered over the long run, from the published outcome table for version 3. Its bonus buys return between 95.42% and 95.48%.
What is the max win in Big Bunker Bounty and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 499,981 spins. In the Free Spins 3 buy (100×) 10,000× lands 1 in 5,001 buys.
Does Big Bunker Bounty have a bonus buy, and what does it cost?
Yes, 3 buy modes. Free Spins 3: 100× the base bet, 95.48% RTP, an expected cost of 4.52× the base bet per buy. Free Spins 4: 200× the base bet, 95.46% RTP, an expected cost of 9.08× the base bet per buy. Free Spins 5: 500× the base bet, 95.42% RTP, an expected cost of 22.88× the base bet per buy.
Is Big Bunker Bounty high or low volatility?
Medium. Its base-mode standard deviation is 18.0× 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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