Dune Reaper slot: RTP and max win
Dune Reaper is a high-volatility slot by GEMINI GAMING on Stake Engine, released 24 Oct 2026. Its base game returns 96.69%, above the median Engine slot (96.02%) and higher than 84% of them. The top payout is 100,000× the bet, bigger than 100% of Engine slots; from a base spin it lands about once every 4,990,652 spins. It has 4 bonus buys priced at 100× to 500× the bet; the best returns 96.69%, so each buy costs 3.31× the bet on average over the long run. It is the No. 2415 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 v8. "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× | 96.69% | 100,000× | 1 in 4,990,652 | 1 in 5.80 | 1 in 20 | 0.03× base | Simulate |
| Spice Scent Boost | Boosted spin | 4.00× | 96.69% | 100,000× | 1 in 2,853,926 | 1 in 3.33 | 1 in 16 | 0.13× base | Simulate |
| Minor Spice Fountain | Bonus buy | 100× | 96.69% | 100,000× | 1 in 3,333,333 | 1 in 1.18 | 1 in 5.00 | 3.31× base | Simulate |
| Thumper Array | Bonus buy | 100× | 96.69% | 100,000× | 1 in 4,990,396 | 1 in 3.30 | 1 in 8.22 | 3.31× base | Simulate |
| Major Spice Fountain | Bonus buy | 250× | 96.69% | 100,000× | 1 in 3,333,333 | 1 in 1.18 | 1 in 5.00 | 8.28× base | Simulate |
| Mystery Dune | Bonus buy | 500× | 96.69% | 100,000× | 1 in 3,333,333 | 1 in 1.18 | 1 in 5.00 | 16.55× base | Simulate |
Work out the cost of Dune Reaper 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 | |
|---|---|---|
| v8 | 96.690% | Active |
Frequently asked
What is the RTP of Dune Reaper?
Base spins return 96.69% of the amount wagered over the long run, from the published outcome table for version 8. All 4 of its bonus buys return 96.69%.
What is the max win in Dune Reaper and how likely is it?
The top payout is 100,000× the base bet. On a base spin it lands 1 in 4,990,652 spins. In the Minor Spice Fountain buy (100×) 100,000× lands 1 in 3,333,333 buys.
Does Dune Reaper have a bonus buy, and what does it cost?
Yes, 4 buy modes. Minor Spice Fountain: 100× the base bet, 96.69% RTP, an expected cost of 3.31× the base bet per buy. Thumper Array: 100× the base bet, 96.69% RTP, an expected cost of 3.31× the base bet per buy. Major Spice Fountain: 250× the base bet, 96.69% RTP, an expected cost of 8.28× the base bet per buy. Mystery Dune: 500× the base bet, 96.69% RTP, an expected cost of 16.55× the base bet per buy.
Is Dune Reaper high or low volatility?
High. Its base-mode standard deviation is 52.9× 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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