Lady Plague slot: RTP and max win
Lady Plague is a low-volatility slot by Ovryx Gaming on Stake Engine, released 19 Mar 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 15,000,000 spins. It has 3 bonus buys priced at 30× to 200× the bet; the best returns 96.00%, so each buy costs 2.80× the bet on average over the long run. It is the No. 3597 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 v11. "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 15,000,000 | 1 in 3.02 | 1 in 33 | 0.04× base | Simulate |
| Enchanted | Boosted spin | 3.00× | 95.62% | 10,000× | 1 in 15,000,028 | 1 in 4.09 | 1 in 32 | 0.13× base | Simulate |
| Contaminated | Boosted spin | 10× | 95.50% | 10,000× | 1 in 15,000,000 | 1 in 1.08 | 1 in 6.27 | 0.45× base | Simulate |
| Plague | Bonus buy | 30× | 95.62% | 10,000× | 1 in 15,000,207 | 1 in 1.01 | 1 in 3.22 | 1.31× base | Simulate |
| Bonus | Bonus buy | 70× | 96.00% | 10,000× | 1 in 15,000,000 | 1 in 1.23 | 1 in 3.26 | 2.80× base | Simulate |
| Super Bonus | Bonus buy | 200× | 95.50% | 10,000× | 1 in 15,000,000 | 1 in 1.10 | 1 in 3.27 | 9.00× base | Simulate |
Work out the cost of Lady Plague 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 | |
|---|---|---|
| v11 | 95.501% | Active |
Frequently asked
What is the RTP of Lady Plague?
Base spins return 95.50% of the amount wagered over the long run, from the published outcome table for version 11. Its bonus buys return between 95.50% and 96.00%.
What is the max win in Lady Plague and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 15,000,000 spins. In the Bonus buy (70×) 10,000× lands 1 in 15,000,000 buys.
Does Lady Plague have a bonus buy, and what does it cost?
Yes, 3 buy modes. Plague: 30× the base bet, 95.62% RTP, an expected cost of 1.31× the base bet per buy. Bonus: 70× the base bet, 96.00% RTP, an expected cost of 2.80× the base bet per buy. Super Bonus: 200× the base bet, 95.50% RTP, an expected cost of 9.00× the base bet per buy.
Is Lady Plague high or low volatility?
Low. Its base-mode standard deviation is 12.5× 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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