Prediction Market slot: RTP and max win
Prediction Market is a low-volatility slot by Monstrums on Stake Engine, released 18 Aug 2026. Its base game returns 96.15%, above the median Engine slot (96.02%) and higher than 56% of them. The top payout is 10× the bet; from a base spin it lands about once every 10 spins. It is the No. 3893 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 v4. "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 | |
|---|---|---|---|---|---|---|---|---|---|
| Call 1000 | Base spin | 1.00× | 96.15% | 10× | 1 in 10 | 1 in 10 | 1 in 10 | 0.04× base | Simulate |
| Call 140 | Base spin | 1.00× | 96.25% | 1.40× | 1 in 1.45 | 1 in 1.45 | 1 in 1.45 | 0.04× base | Simulate |
| Call 200 | Base spin | 1.00× | 96.00% | 2.00× | 1 in 2.08 | 1 in 2.08 | 1 in 2.08 | 0.04× base | Simulate |
| Call 500 | Base spin | 1.00× | 96.15% | 5.00× | 1 in 5.20 | 1 in 5.20 | 1 in 5.20 | 0.04× 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 | |
|---|---|---|
| v4 | 96.154% | Active |
Frequently asked
What is the RTP of Prediction Market?
Base spins return 96.15% of the amount wagered over the long run, from the published outcome table for version 4. Across its 4 modes RTP ranges from 96.00% to 96.25%.
What is the max win in Prediction Market and how likely is it?
The top payout is 10× the base bet. On a base spin it lands 1 in 10 spins.
Does Prediction Market have a bonus buy?
No. None of its published modes costs 20× the base bet or more.
Is Prediction Market high or low volatility?
Low. Its base-mode standard deviation is 0.6× 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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