SpellStorm slot: RTP and max win
SpellStorm is a high-volatility slot by NOTDED on Stake Engine, released 26 Aug 2026. Its base game returns 95.50%, below the median Engine slot (96.02%). The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 1,000,001 spins. It has 5 bonus buys priced at 50× to 500× the bet; the best returns 95.50%, so each buy costs 2.25× the bet on average over the long run. It is the No. 6230 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 v78. "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% | 25,000× | 1 in 1,000,001 | 1 in 2.62 | 1 in 6.18 | 0.05× base | Simulate |
| Boost Scatter | Boosted spin | 3.00× | 95.50% | 25,000× | 1 in 333,333 | 1 in 2.12 | 1 in 19 | 0.14× base | Simulate |
| Vip Spin | Bonus buy | 50× | 95.50% | 25,000× | 1 in 20,000 | 1 in 1.58 | 1 in 4.08 | 2.25× base | Simulate |
| Bonus 1 | Bonus buy | 100× | 95.50% | 25,000× | 1 in 10,000 | 1 in 1.14 | 1 in 4.32 | 4.50× base | Simulate |
| Vip2 Spin | Bonus buy | 150× | 95.50% | 25,000× | 1 in 6,667 | 1 in 1.29 | 1 in 3.70 | 6.75× base | Simulate |
| Bonus 2 | Bonus buy | 200× | 95.50% | 25,000× | 1 in 5,000 | 1 in 1.13 | 1 in 6.57 | 9.00× base | Simulate |
| Mystery Scatter | Bonus buy | 500× | 95.50% | 25,000× | 1 in 5,000 | 1 in 1.45 | 1 in 3.72 | 22.50× 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 | |
|---|---|---|
| v78 | 95.500% | Active |
Frequently asked
What is the RTP of SpellStorm?
Base spins return 95.50% of the amount wagered over the long run, from the published outcome table for version 78. All 5 of its bonus buys return 95.50%.
What is the max win in SpellStorm and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 1,000,001 spins. In the Vip Spin buy (50×) 25,000× lands 1 in 20,000 buys.
Does SpellStorm have a bonus buy, and what does it cost?
Yes, 5 buy modes. Vip Spin: 50× the base bet, 95.50% RTP, an expected cost of 2.25× the base bet per buy. Bonus 1: 100× the base bet, 95.50% RTP, an expected cost of 4.50× the base bet per buy. Vip2 Spin: 150× the base bet, 95.50% RTP, an expected cost of 6.75× the base bet per buy. Bonus 2: 200× the base bet, 95.50% RTP, an expected cost of 9.00× the base bet per buy. Mystery Scatter: 500× the base bet, 95.50% RTP, an expected cost of 22.50× the base bet per buy.
Is SpellStorm high or low volatility?
High. Its base-mode standard deviation is 30.7× 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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