Halloween Reaper slot: RTP and max win
Halloween Reaper is a medium-volatility slot by Big Ducking Wings on Stake Engine, released 4 Oct 2026. Its base game returns 95.00%, below the median Engine slot (96.02%). The top payout is 50,000× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 9,999,999 spins. It has 4 bonus buys priced at 80× to 200× the bet; the best returns 95.00%, so each buy costs 4.00× the bet on average over the long run. It is the No. 900 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 v3. "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× | 95.00% | 50,000× | 1 in 9,999,999 | 1 in 1.58 | 1 in 6.00 | 0.05× base | Simulate |
| Doublechance | Boosted spin | 2.00× | 95.00% | 50,000× | 1 in 9,999,999 | 1 in 1.57 | 1 in 5.02 | 0.10× base | Simulate |
| Holdwin | Bonus buy | 80× | 95.00% | 50,000× | 1 in 250,000 | – | 1 in 3.44 | 4.00× base | Simulate |
| Reaper | Bonus buy | 100× | 95.00% | 50,000× | 1 in 200,000 | – | 1 in 4.86 | 5.00× base | Simulate |
| Mystery | Bonus buy | 200× | 95.00% | 50,000× | 1 in 50,000 | – | 1 in 4.77 | 10.00× base | Simulate |
| Super | Bonus buy | 200× | 95.00% | 50,000× | 1 in 50,000 | – | 1 in 4.01 | 10.00× base | Simulate |
Work out the cost of Halloween 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 | |
|---|---|---|
| v3 | 95.000% | Active |
Frequently asked
What is the RTP of Halloween Reaper?
Base spins return 95.00% of the amount wagered over the long run, from the published outcome table for version 3. All 4 of its bonus buys return 95.00%.
What is the max win in Halloween Reaper and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 9,999,999 spins. In the Holdwin buy (80×) 50,000× lands 1 in 250,000 buys.
Does Halloween Reaper have a bonus buy, and what does it cost?
Yes, 4 buy modes. Holdwin: 80× the base bet, 95.00% RTP, an expected cost of 4.00× the base bet per buy. Reaper: 100× the base bet, 95.00% RTP, an expected cost of 5.00× the base bet per buy. Mystery: 200× the base bet, 95.00% RTP, an expected cost of 10.00× the base bet per buy. Super: 200× the base bet, 95.00% RTP, an expected cost of 10.00× the base bet per buy.
Is Halloween Reaper high or low volatility?
Medium. Its base-mode standard deviation is 23.9× 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.
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