Extreme Roulette slot: RTP and max win
Extreme Roulette is a low-volatility slot by Bolly Games on Stake Engine, released 12 May 2026. Its base game returns 95.48%, below the median Engine slot (96.02%). The top payout is 1,681× the bet. It has 2 bonus buys priced at 100× to 500× the bet; the best returns 95.80%, so each buy costs 21× the bet on average over the long run.
Every mode, side by side
Costs are multiples of the base bet. Odds come from the published outcome table for v28. "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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2x Mode | Base spin | 1.00× | 95.48% | 104× | 1 in 100,000 | 1 in 2.86 | 1 in 2.86 | 0.05× base | Simulate |
| 36x Mode | Base spin | 1.00× | 95.83% | 36× | 1 in 38 | 1 in 38 | 1 in 38 | 0.04× base | Simulate |
| 3x Mode | Base spin | 1.00× | 95.38% | 104× | 1 in 100,000 | 1 in 4.27 | 1 in 4.27 | 0.05× base | Simulate |
| Bonus Mode | Bonus buy | 100× | 95.60% | 364× | 1 in 100,000 | every round | 1 in 2.36 | 4.40× base | Simulate |
| Extreme Bonus Mode | Bonus buy | 500× | 95.80% | 1,681× | 1 in 100,000 | – | 1 in 2.36 | 20.98× base | Simulate |
Work out the cost of Extreme Roulette 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 | |
|---|---|---|
| v28 | 95.481% | Active |
Frequently asked
What is the RTP of Extreme Roulette?
Base spins return 95.48% of the amount wagered over the long run, from the published outcome table for version 28. Its bonus buys return between 95.60% and 95.80%.
What is the max win in Extreme Roulette and how likely is it?
The top payout is 1,681× the base bet. On a base spin the top payout of 104× lands 1 in 100,000 spins. In the Extreme Bonus Mode buy (500×) 1,681× lands 1 in 100,000 buys.
Does Extreme Roulette have a bonus buy, and what does it cost?
Yes, 2 buy modes. Bonus Mode: 100× the base bet, 95.60% RTP, an expected cost of 4.40× the base bet per buy. Extreme Bonus Mode: 500× the base bet, 95.80% RTP, an expected cost of 20.98× the base bet per buy.
Is Extreme Roulette high or low volatility?
Low. Its base-mode standard deviation is 4.0× the bet, which puts it in the lowest 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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