Duel for the Queen slot: RTP and max win
Duel for the Queen is a high-volatility slot by AVA STUDIO on Stake Engine, released 22 Jun 2026. Its base game returns 95.42%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 1,000,511 spins. It has 2 bonus buys priced at 100× to 300× the bet; the best returns 95.40%, so each buy costs 14× the bet on average over the long run. It is the No. 4452 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 v7. "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× | 95.42% | 10,000× | 1 in 1,000,511 | 1 in 2.80 | 1 in 12 | 0.05× base | Simulate |
| Boost | Boosted spin | 2.00× | 95.38% | 10,000× | 1 in 1,000,065 | 1 in 2.27 | 1 in 10 | 0.09× base | Simulate |
| Small | Bonus buy | 100× | 95.36% | 10,000× | 1 in 100,086 | 1 in 1.03 | 1 in 3.67 | 4.64× base | Simulate |
| Large | Bonus buy | 300× | 95.40% | 10,000× | 1 in 100,031 | every round | 1 in 7.08 | 13.81× base | Simulate |
Work out the cost of Duel for the Queen 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 | |
|---|---|---|
| v7 | 95.415% | Active |
Frequently asked
What is the RTP of Duel for the Queen?
Base spins return 95.42% of the amount wagered over the long run, from the published outcome table for version 7. Its bonus buys return between 95.36% and 95.40%.
What is the max win in Duel for the Queen and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 1,000,511 spins. In the Large buy (300×) 10,000× lands 1 in 100,031 buys.
Does Duel for the Queen have a bonus buy, and what does it cost?
Yes, 2 buy modes. Small: 100× the base bet, 95.36% RTP, an expected cost of 4.64× the base bet per buy. Large: 300× the base bet, 95.40% RTP, an expected cost of 13.81× the base bet per buy.
Is Duel for the Queen high or low volatility?
High. Its base-mode standard deviation is 49.8× 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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