Golden Koi slot: RTP and max win
Golden Koi is a high-volatility slot by Shift Gaming on Stake Engine, released 30 Jul 2026. Its base game returns 96.10%, above the median Engine slot (96.02%) and higher than 53% 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 12,000,000 spins. It has 5 bonus buys priced at 50× to 1,000× the bet; the best returns 96.10%, so each buy costs 1.95× the bet on average over the long run. It is the No. 2598 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 v34. "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× | 96.10% | 50,000× | 1 in 12,000,000 | 1 in 6.22 | 1 in 12 | 0.04× base | Simulate |
| Bonushunt | Boosted spin | 3.00× | 96.10% | 50,000× | 1 in 6,000,000 | 1 in 15 | 1 in 61 | 0.12× base | Simulate |
| Moonrise | Bonus buy | 50× | 96.10% | 50,000× | 1 in 500,459 | – | 1 in 17 | 1.95× base | Simulate |
| Regular | Bonus buy | 150× | 96.10% | 50,000× | 1 in 50,000 | – | 1 in 4.78 | 5.85× base | Simulate |
| Super | Bonus buy | 330× | 96.10% | 50,000× | 1 in 15,000 | – | 1 in 4.26 | 12.87× base | Simulate |
| Takeachance | Bonus buy | 420× | 96.10% | 50,000× | 1 in 5,000 | 1 in 1.96 | 1 in 6.77 | 16.38× base | Simulate |
| Fullmoon | Bonus buy | 1,000× | 96.10% | 50,000× | 1 in 3,000 | – | 1 in 4.92 | 39.00× 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 | |
|---|---|---|
| v34 | 96.100% | Active |
Frequently asked
What is the RTP of Golden Koi?
Base spins return 96.10% of the amount wagered over the long run, from the published outcome table for version 34. All 5 of its bonus buys return 96.10%.
What is the max win in Golden Koi and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 12,000,000 spins. In the Moonrise buy (50×) 50,000× lands 1 in 500,459 buys.
Does Golden Koi have a bonus buy, and what does it cost?
Yes, 5 buy modes. Moonrise: 50× the base bet, 96.10% RTP, an expected cost of 1.95× the base bet per buy. Regular: 150× the base bet, 96.10% RTP, an expected cost of 5.85× the base bet per buy. Super: 330× the base bet, 96.10% RTP, an expected cost of 12.87× the base bet per buy. Takeachance: 420× the base bet, 96.10% RTP, an expected cost of 16.38× the base bet per buy. Fullmoon: 1,000× the base bet, 96.10% RTP, an expected cost of 39.00× the base bet per buy.
Is Golden Koi high or low volatility?
High. Its base-mode standard deviation is 44.4× 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.
Slots with similar math to Golden Koi
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Dragons QuestColorful Play RTP96.11%Max win50,000×Volatility
Dead RudeNox Gaming RTP96.00%Max win50,000×Volatility
Ember HoardNox Gaming RTP96.00%Max win50,000×Volatility
Tokyo RushHammer Head Gaming RTP96.00%Max win50,000×Volatility
Cursed Coinsreavlix RTP96.11%Max win50,000×Volatility
Devils HandSlate Studios RTP96.02%Max win50,000×Volatility