Summerine slot: RTP and max win
Summerine is a medium-volatility slot by Cotton Balls on Stake Engine, released 20 Sep 2026. Its base game returns 96.27%, above the median Engine slot (96.02%) and higher than 60% of them. The top payout is 2,500× the bet; from a base spin it lands about once every 200,000 spins. It has 2 bonus buys priced at 35× to 100× the bet; the best returns 96.29%, so each buy costs 1.30× the bet on average over the long run. It is the No. 4262 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 v12. "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× | 96.27% | 2,500× | 1 in 200,000 | 1 in 2.80 | 1 in 5.62 | 0.04× base | Simulate |
| Regular Feature | Bonus buy | 35× | 96.29% | 2,500× | 1 in 50,000 | 1 in 1.12 | 1 in 5.01 | 1.30× base | Simulate |
| Top Feature | Bonus buy | 100× | 96.28% | 2,500× | 1 in 10,000 | – | 1 in 3.81 | 3.72× 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 | |
|---|---|---|
| v12 | 96.270% | Active |
Frequently asked
What is the RTP of Summerine?
Base spins return 96.27% of the amount wagered over the long run, from the published outcome table for version 12. Its bonus buys return between 96.28% and 96.29%.
What is the max win in Summerine and how likely is it?
The top payout is 2,500× the base bet. On a base spin it lands 1 in 200,000 spins. In the Regular Feature buy (35×) 2,500× lands 1 in 50,000 buys.
Does Summerine have a bonus buy, and what does it cost?
Yes, 2 buy modes. Regular Feature: 35× the base bet, 96.29% RTP, an expected cost of 1.30× the base bet per buy. Top Feature: 100× the base bet, 96.28% RTP, an expected cost of 3.72× the base bet per buy.
Is Summerine high or low volatility?
Medium. Its base-mode standard deviation is 14.9× 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.
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