Kingdom of Ruin slot: RTP and max win
Kingdom of Ruin is a low-volatility slot by Pascale Studios on Stake Engine, released 19 Aug 2026. Its base game returns 95.50%, below the median Engine slot (96.02%). The top payout is 15,000× the bet, bigger than 50% of Engine slots; from a base spin it lands about once every 15,001,783 spins. It has 4 bonus buys priced at 100× to 400× the bet; the best returns 95.50%, so each buy costs 18× the bet on average over the long run. It is the No. 5690 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 v10. "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% | 15,000× | 1 in 15,001,783 | 1 in 2.43 | 1 in 9.56 | 0.05× base | Simulate |
| Bonus | Bonus buy | 100× | 95.50% | 15,000× | 1 in 7,206,529 | 1 in 1.02 | 1 in 6.06 | 4.50× base | Simulate |
| Mystery | Bonus buy | 250× | 95.50% | 15,000× | 1 in 10,605,183 | 1 in 1.01 | 1 in 5.39 | 11.25× base | Simulate |
| Ante | Bonus buy | 300× | 95.50% | 15,000× | 1 in 4,535,736 | 1 in 1.81 | 1 in 4.77 | 13.50× base | Simulate |
| Super | Bonus buy | 400× | 95.50% | 15,000× | 1 in 12,359,278 | 1 in 1.32 | 1 in 4.49 | 18.00× base | Simulate |
Work out the cost of Kingdom of Ruin 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 | |
|---|---|---|
| v10 | 95.500% | Active |
Frequently asked
What is the RTP of Kingdom of Ruin?
Base spins return 95.50% of the amount wagered over the long run, from the published outcome table for version 10. All 4 of its bonus buys return 95.50%.
What is the max win in Kingdom of Ruin and how likely is it?
The top payout is 15,000× the base bet. On a base spin it lands 1 in 15,001,783 spins. In the Super buy (400×) 15,000× lands 1 in 12,359,278 buys.
Does Kingdom of Ruin have a bonus buy, and what does it cost?
Yes, 4 buy modes. Bonus: 100× the base bet, 95.50% RTP, an expected cost of 4.50× the base bet per buy. Mystery: 250× the base bet, 95.50% RTP, an expected cost of 11.25× the base bet per buy. Ante: 300× the base bet, 95.50% RTP, an expected cost of 13.50× the base bet per buy. Super: 400× the base bet, 95.50% RTP, an expected cost of 18.00× the base bet per buy.
Is Kingdom of Ruin high or low volatility?
Low. Its base-mode standard deviation is 11.1× the bet, which puts it in the lowest 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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