Sour Rush slot: RTP and max win
Sour Rush is a medium-volatility slot by HiFive Gaming on Stake Engine, released 25 Apr 2026. Its base game returns 96.50%, above the median Engine slot (96.02%) and higher than 66% 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 10,000,129 spins. It has 3 bonus buys priced at 100× to 500× the bet; the best returns 96.50%, so each buy costs 3.50× the bet on average over the long run.
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% | 50,000× | 1 in 10,000,129 | 1 in 3.44 | 1 in 16 | 0.04× base | Simulate |
| Ante | Boosted spin | 5.00× | 96.50% | 50,000× | 1 in 2,000,013 | 1 in 2.91 | 1 in 55 | 0.18× base | Simulate |
| Superspin1 | Boosted spin | 10× | 96.50% | 50,000× | 1 in 1,000,002 | 1 in 3.44 | 1 in 9.42 | 0.35× base | Simulate |
| Bonus | Bonus buy | 100× | 96.50% | 50,000× | 1 in 100,000 | – | 1 in 4.33 | 3.50× base | Simulate |
| Superspin2 | Bonus buy | 250× | 96.50% | 50,000× | 1 in 40,000 | 1 in 1.98 | 1 in 8.84 | 8.75× base | Simulate |
| Superbonus | Bonus buy | 500× | 96.50% | 50,000× | 1 in 20,000 | – | 1 in 3.02 | 17.50× 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 | |
|---|---|---|
| v1 | 96.500% | Active |
Frequently asked
What is the RTP of Sour Rush?
Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 1. All 3 of its bonus buys return 96.50%.
What is the max win in Sour Rush and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 10,000,129 spins. In the Bonus buy (100×) 50,000× lands 1 in 100,000 buys.
Does Sour Rush have a bonus buy, and what does it cost?
Yes, 3 buy modes. Bonus: 100× the base bet, 96.50% RTP, an expected cost of 3.50× the base bet per buy. Superspin2: 250× the base bet, 96.50% RTP, an expected cost of 8.75× the base bet per buy. Superbonus: 500× the base bet, 96.50% RTP, an expected cost of 17.50× the base bet per buy.
Is Sour Rush high or low volatility?
Medium. Its base-mode standard deviation is 20.6× 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 Sour Rush
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Hocus KushHexreel RTP96.50%Max win50,000×Volatility
SUPER HIGH BUDDYHiFive Gaming RTP96.50%Max win50,000×Volatility
Last ClueKLG Games RTP96.50%Max win50,000×Volatility
Ritual of ValhallaKROOMI RTP96.50%Max win50,000×Volatility
Skyward RichesBrimvale Games RTP96.50%Max win50,000×Volatility
SOUR SHOCKHiFive Gaming RTP96.50%Max win50,000×Volatility