Hels Domain slot: RTP and max win
Hels Domain is a high-volatility slot by Valkyrie on Stake Engine, released 30 May 2026. Its base game returns 97.70%, above the median Engine slot (96.02%) and higher than 99% of them. The top payout is 20,000× the bet, bigger than 59% of Engine slots; from a base spin it lands about once every 146,594 spins. It has 2 bonus buys priced at 50× to 2,500× the bet; the best returns 97.70%, so each buy costs 1.15× the bet on average over the long run. It is the No. 30 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 v15. "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× | 97.70% | 20,000× | 1 in 146,594 | 1 in 16 | 1 in 57 | 0.02× base | Simulate |
| Ante | Boosted spin | 3.00× | 97.70% | 20,000× | 1 in 47,236 | 1 in 9.12 | 1 in 26 | 0.07× base | Simulate |
| Tricksterspin | Bonus buy | 50× | 97.70% | 20,000× | 1 in 6,198 | 1 in 6.29 | 1 in 9.86 | 1.15× base | Simulate |
| Fuspin | Bonus buy | 2,500× | 97.70% | 20,000× | 1 in 26 | 1 in 2.67 | 1 in 3.24 | 57.55× base | Simulate |
Work out the cost of Hels Domain 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 | |
|---|---|---|
| v15 | 97.701% | Active |
Frequently asked
What is the RTP of Hels Domain?
Base spins return 97.70% of the amount wagered over the long run, from the published outcome table for version 15. All 2 of its bonus buys return 97.70%.
What is the max win in Hels Domain and how likely is it?
The top payout is 20,000× the base bet. On a base spin it lands 1 in 146,594 spins. In the Tricksterspin buy (50×) 20,000× lands 1 in 6,198 buys.
Does Hels Domain have a bonus buy, and what does it cost?
Yes, 2 buy modes. Tricksterspin: 50× the base bet, 97.70% RTP, an expected cost of 1.15× the base bet per buy. Fuspin: 2,500× the base bet, 97.70% RTP, an expected cost of 57.55× the base bet per buy.
Is Hels Domain high or low volatility?
High. Its base-mode standard deviation is 68.6× 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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