Souls Collector slot: RTP and max win
Souls Collector is a high-volatility slot by Zonko Labs on Stake Engine, released 23 Sep 2025. Its base game returns 96.34%, above the median Engine slot (96.02%) and higher than 64% of them. The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 1,000,000 spins. It has 3 bonus buys priced at 20× to 1,000× the bet; the best returns 96.52%, so each buy costs 6.96× the bet on average over the long run.
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× | 96.34% | 25,000× | 1 in 1,000,000 | 1 in 2.42 | 1 in 8.14 | 0.04× base | Simulate |
| No Dead | Boosted spin | 3.00× | 96.62% | 25,000× | 1 in 333,333 | – | 1 in 16 | 0.10× base | Simulate |
| Nd Nc | Bonus buy | 20× | 95.92% | 25,000× | 1 in 10,309 | 1 in 2.52 | 1 in 22 | 0.82× base | Simulate |
| Nd Nc Nunc | Bonus buy | 200× | 96.52% | 25,000× | 1 in 799 | 1 in 2.61 | 1 in 8.00 | 6.96× base | Simulate |
| Gods | Bonus buy | 1,000× | 96.29% | 25,000× | 1 in 181 | 1 in 5.05 | 1 in 5.05 | 37.13× base | Simulate |
Work out the cost of Souls Collector 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 | 96.344% | Active |
Frequently asked
What is the RTP of Souls Collector?
Base spins return 96.34% of the amount wagered over the long run, from the published outcome table for version 3. Its bonus buys return between 95.92% and 96.52%.
What is the max win in Souls Collector and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 1,000,000 spins. In the Nd Nc Nunc buy (200×) 25,000× lands 1 in 799 buys.
Does Souls Collector have a bonus buy, and what does it cost?
Yes, 3 buy modes. Nd Nc: 20× the base bet, 95.92% RTP, an expected cost of 0.82× the base bet per buy. Nd Nc Nunc: 200× the base bet, 96.52% RTP, an expected cost of 6.96× the base bet per buy. Gods: 1,000× the base bet, 96.29% RTP, an expected cost of 37.13× the base bet per buy.
Is Souls Collector high or low volatility?
High. Its base-mode standard deviation is 40.2× 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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