Haunted Hull slot: RTP and max win
Haunted Hull is a high-volatility slot by Anchor Gaming on Stake Engine, released 9 Oct 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 3,300,017 spins. It has 4 bonus buys priced at 50× to 500× the bet; the best returns 96.00%, so each buy costs 2.00× the bet on average over the long run. It is the No. 964 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× | 96.00% | 25,000× | 1 in 3,300,017 | 1 in 4.92 | 1 in 13 | 0.04× base | Simulate |
| Ante | Boosted spin | 1.50× | 96.00% | 25,000× | 1 in 2,199,990 | 1 in 4.84 | 1 in 17 | 0.06× base | Simulate |
| Feature Spin | Boosted spin | 5.00× | 96.00% | 25,000× | 1 in 625,000 | 1 in 1.39 | 1 in 4.68 | 0.20× base | Simulate |
| Super Feature Spin | Bonus buy | 50× | 96.00% | 25,000× | 1 in 62,500 | 1 in 1.09 | 1 in 4.83 | 2.00× base | Simulate |
| Bonus | Bonus buy | 100× | 96.00% | 25,000× | 1 in 33,000 | – | 1 in 6.79 | 4.00× base | Simulate |
| Super Bonus | Bonus buy | 350× | 96.00% | 25,000× | 1 in 9,500 | – | 1 in 5.99 | 14.00× base | Simulate |
| Mystery Bonus | Bonus buy | 500× | 96.00% | 25,000× | 1 in 6,700 | 1 in 2.86 | 1 in 4.70 | 20.00× base | Simulate |
Work out the cost of Haunted Hull 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 | 96.000% | Active |
Frequently asked
What is the RTP of Haunted Hull?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 3. All 4 of its bonus buys return 96.00%.
What is the max win in Haunted Hull and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 3,300,017 spins. In the Super Feature Spin buy (50×) 25,000× lands 1 in 62,500 buys.
Does Haunted Hull have a bonus buy, and what does it cost?
Yes, 4 buy modes. Super Feature Spin: 50× the base bet, 96.00% RTP, an expected cost of 2.00× the base bet per buy. Bonus: 100× the base bet, 96.00% RTP, an expected cost of 4.00× the base bet per buy. Super Bonus: 350× the base bet, 96.00% RTP, an expected cost of 14.00× the base bet per buy. Mystery Bonus: 500× the base bet, 96.00% RTP, an expected cost of 20.00× the base bet per buy.
Is Haunted Hull high or low volatility?
High. Its base-mode standard deviation is 47.6× 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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