The Plague Pharmacy slot: RTP and max win
The Plague Pharmacy is a medium-volatility slot by Vronispins on Stake Engine, released 21 Oct 2026. Its base game returns 96.50%, above the median Engine slot (96.02%) and higher than 66% 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 3,333,333 spins. It has 5 bonus buys priced at 100× to 1,000× the bet; the best returns 96.50%, so each buy costs 3.50× the bet on average over the long run. It is the No. 2990 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× | 96.50% | 25,000× | 1 in 3,333,333 | 1 in 2.77 | 1 in 7.19 | 0.04× base | Simulate |
| Ante | Boosted spin | 2.50× | 96.50% | 25,000× | 1 in 666,667 | 1 in 2.88 | 1 in 7.22 | 0.09× base | Simulate |
| Superante | Boosted spin | 10× | 96.50% | 25,000× | 1 in 500,000 | 1 in 2.49 | 1 in 10 | 0.35× base | Simulate |
| Bonus | Bonus buy | 100× | 96.50% | 25,000× | 1 in 66,667 | – | 1 in 2.92 | 3.50× base | Simulate |
| Mystery | Bonus buy | 200× | 96.50% | 25,000× | 1 in 50,000 | – | 1 in 3.40 | 7.00× base | Simulate |
| Spin | Bonus buy | 200× | 96.50% | 3,262× | 1 in 35,132 | – | 1 in 2.78 | 7.00× base | Simulate |
| Super | Bonus buy | 300× | 96.50% | 25,000× | 1 in 50,000 | – | 1 in 2.70 | 10.50× base | Simulate |
| Epic | Bonus buy | 1,000× | 96.50% | 25,000× | 1 in 35,714 | – | 1 in 2.60 | 35.00× base | Simulate |
Work out the cost of The Plague Pharmacy 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 | |
|---|---|---|
| v1 | 96.500% | Active |
Frequently asked
What is the RTP of The Plague Pharmacy?
Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 1. All 5 of its bonus buys return 96.50%.
What is the max win in The Plague Pharmacy and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 3,333,333 spins. In the Bonus buy (100×) 25,000× lands 1 in 66,667 buys.
Does The Plague Pharmacy have a bonus buy, and what does it cost?
Yes, 5 buy modes. Bonus: 100× the base bet, 96.50% RTP, an expected cost of 3.50× the base bet per buy. Mystery: 200× the base bet, 96.50% RTP, an expected cost of 7.00× the base bet per buy. Spin: 200× the base bet, 96.50% RTP, an expected cost of 7.00× the base bet per buy. Super: 300× the base bet, 96.50% RTP, an expected cost of 10.50× the base bet per buy. Epic: 1,000× the base bet, 96.50% RTP, an expected cost of 35.00× the base bet per buy.
Is The Plague Pharmacy high or low volatility?
Medium. Its base-mode standard deviation is 17.2× 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.
Slots with similar math to The Plague Pharmacy
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Cold NoseRising Sun studio RTP96.50%Max win25,000×Volatility
Atlantis TidesFortuneWorks RTP96.50%Max win25,000×Volatility
Dogs of ValhallaLucky Iron Games RTP96.50%Max win25,000×Volatility
Lucky FrogTofu RTP96.50%Max win25,000×Volatility
Hot ClutchUncrop Games RTP96.50%Max win25,000×Volatility
Hungry HothouseTalore Labs RTP96.50%Max win25,000×Volatility