Altar of Souls slot: RTP and max win
Altar of Souls is a medium-volatility slot by Valkyrie on Stake Engine, released 19 Oct 2026. Its base game returns 96.70%, above the median Engine slot (96.02%) and higher than 86% of them. The top payout is 10,000× the bet; from a base spin it lands about once every 2,561,193 spins. It is the No. 40 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 v11. "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× | 96.70% | 10,000× | 1 in 2,561,193 | 1 in 6.47 | 1 in 27 | 0.03× base | Simulate |
| Boost | Boosted spin | 3.00× | 96.70% | 10,000× | 1 in 131,747 | 1 in 6.24 | 1 in 19 | 0.10× base | Simulate |
| Superboost | Boosted spin | 6.00× | 96.70% | 10,000× | 1 in 65,476 | 1 in 5.58 | 1 in 11 | 0.20× base | Simulate |
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 | |
|---|---|---|
| v11 | 96.700% | Active |
| v10 | 96.700% |
Frequently asked
What is the RTP of Altar of Souls?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 11. All 3 modes return 96.70%.
What is the max win in Altar of Souls and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 2,561,193 spins.
Does Altar of Souls have a bonus buy?
No. None of its published modes costs 20× the base bet or more.
Is Altar of Souls high or low volatility?
Medium. Its base-mode standard deviation is 19.6× 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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