Shroom Shaman slot: RTP and max win
Shroom Shaman is a medium-volatility slot by Reactor Games on Stake Engine, released 13 Oct 2026. Its base game returns 96.20%, above the median Engine slot (96.02%) and higher than 57% of them. The top payout is 50,000× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 8,333,336 spins. It has 4 bonus buys priced at 40× to 250× the bet; the best returns 96.20%, so each buy costs 1.52× the bet on average over the long run. It is the No. 951 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 v2. "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× | 96.20% | 50,000× | 1 in 8,333,336 | 1 in 2.48 | 1 in 44 | 0.04× base | Simulate |
| Extra Chance | Boosted spin | 2.00× | 96.20% | 50,000× | 1 in 4,166,668 | 1 in 2.46 | 1 in 26 | 0.08× base | Simulate |
| Hyper Chance | Boosted spin | 10× | 96.20% | 50,000× | 1 in 833,333 | 1 in 2.22 | 1 in 13 | 0.38× base | Simulate |
| Big Wild | Bonus buy | 40× | 96.20% | 4,812× | 1 in 4,937,252 | every round | 1 in 2.77 | 1.52× base | Simulate |
| Bonus | Bonus buy | 100× | 96.20% | 50,000× | 1 in 83,333 | – | 1 in 3.79 | 3.80× base | Simulate |
| Super Bonus | Bonus buy | 225× | 96.20% | 50,000× | 1 in 37,037 | – | 1 in 2.73 | 8.55× base | Simulate |
| Mysterybonus | Bonus buy | 250× | 96.20% | 50,000× | 1 in 33,333 | – | 1 in 4.37 | 9.50× base | Simulate |
Work out the cost of Shroom Shaman 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 | |
|---|---|---|
| v2 | 96.200% | Active |
Frequently asked
What is the RTP of Shroom Shaman?
Base spins return 96.20% of the amount wagered over the long run, from the published outcome table for version 2. All 4 of its bonus buys return 96.20%.
What is the max win in Shroom Shaman and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 8,333,336 spins. In the Big Wild buy (40×) 4,812× lands 1 in 4,937,252 buys.
Does Shroom Shaman have a bonus buy, and what does it cost?
Yes, 4 buy modes. Big Wild: 40× the base bet, 96.20% RTP, an expected cost of 1.52× the base bet per buy. Bonus: 100× the base bet, 96.20% RTP, an expected cost of 3.80× the base bet per buy. Super Bonus: 225× the base bet, 96.20% RTP, an expected cost of 8.55× the base bet per buy. Mysterybonus: 250× the base bet, 96.20% RTP, an expected cost of 9.50× the base bet per buy.
Is Shroom Shaman high or low volatility?
Medium. Its base-mode standard deviation is 20.5× 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 Shroom Shaman
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
DEAD RECKONINGBlackout Interactive RTP96.20%Max win50,000×Volatility
Sling ShotRigged Studios RTP96.20%Max win50,000×Volatility
Big CheeseShift Gaming RTP96.20%Max win50,000×Volatility
Candy CatchStackhaus RTP96.10%Max win50,000×Volatility
Fat EddieObscure Studio RTP96.05%Max win50,000×Volatility
Stoneage BanditsWinCap Gaming RTP96.20%Max win50,000×Volatility