Madame X slot: RTP and max win
Madame X is a high-volatility slot by Atomic Play on Stake Engine, released 12 Sep 2026. Its base game returns 96.11%, above the median Engine slot (96.02%) and higher than 54% of them. The top payout is 10,000× the bet; from a base spin it lands about once every 20,000,200 spins. It has 4 bonus buys priced at 25× to 900× the bet; the best returns 96.11%, so each buy costs 0.97× the bet on average over the long run. It is the No. 4136 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 v1. "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× | 96.11% | 10,000× | 1 in 20,000,200 | 1 in 2.95 | 1 in 19 | 0.04× base | Simulate |
| Chance 5x | Boosted spin | 5.00× | 96.11% | 10,000× | 1 in 4,000,001 | 1 in 2.54 | 1 in 23 | 0.19× base | Simulate |
| Chance 25x | Bonus buy | 25× | 96.11% | 10,000× | 1 in 800,000 | 1 in 1.76 | 1 in 8.60 | 0.97× base | Simulate |
| Bonus Chance | Bonus buy | 54× | 96.11% | 10,000× | 1 in 123,457 | 1 in 3.34 | 1 in 11 | 2.10× base | Simulate |
| Bonus | Bonus buy | 100× | 96.11% | 10,000× | 1 in 100,001 | every round | 1 in 5.36 | 3.89× base | Simulate |
| Super Bonus | Bonus buy | 900× | 96.11% | 10,000× | 1 in 1,575,742 | every round | 1 in 3.82 | 35.01× base | Simulate |
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 | |
|---|---|---|
| v1 | 96.110% | Active |
Frequently asked
What is the RTP of Madame X?
Base spins return 96.11% of the amount wagered over the long run, from the published outcome table for version 1. All 4 of its bonus buys return 96.11%.
What is the max win in Madame X and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 20,000,200 spins. In the Chance 25x buy (25×) 10,000× lands 1 in 800,000 buys.
Does Madame X have a bonus buy, and what does it cost?
Yes, 4 buy modes. Chance 25x: 25× the base bet, 96.11% RTP, an expected cost of 0.97× the base bet per buy. Bonus Chance: 54× the base bet, 96.11% RTP, an expected cost of 2.10× the base bet per buy. Bonus: 100× the base bet, 96.11% RTP, an expected cost of 3.89× the base bet per buy. Super Bonus: 900× the base bet, 96.11% RTP, an expected cost of 35.01× the base bet per buy.
Is Madame X high or low volatility?
High. Its base-mode standard deviation is 26.0× the bet, which puts it in the highest 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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