Devils Spawn slot: RTP and max win
Devils Spawn is a high-volatility slot by Mental Machines on Stake Engine, released 30 Jun 2026. Its base game returns 95.00%, below the median Engine slot (96.02%). The top payout is 5,000× the bet; from a base spin it lands about once every 44,776 spins. It has 3 bonus buys priced at 50× to 200× the bet; the best returns 95.00%, so each buy costs 2.50× the bet on average over the long run. It is the No. 4934 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 v14. "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% | 5,000× | 1 in 44,776 | 1 in 4.79 | 1 in 28 | 0.05× base | Simulate |
| Bonus Hunt | Boosted spin | 2.00× | 95.00% | 5,000× | 1 in 13,363 | 1 in 5.14 | 1 in 12 | 0.10× base | Simulate |
| Hellspark | Bonus buy | 50× | 95.00% | 5,000× | 1 in 1,706 | 1 in 4.04 | 1 in 4.27 | 2.50× base | Simulate |
| Rising Inferno | Bonus buy | 100× | 95.00% | 5,000× | 1 in 667 | every round | 1 in 4.78 | 5.00× base | Simulate |
| Eternal Damnation | Bonus buy | 200× | 95.00% | 5,000× | 1 in 417 | every round | 1 in 3.58 | 10.00× base | Simulate |
Work out the cost of Devils Spawn 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 | |
|---|---|---|
| v14 | 95.000% | Active |
| v13 | 95.000% |
Frequently asked
What is the RTP of Devils Spawn?
Base spins return 95.00% of the amount wagered over the long run, from the published outcome table for version 14. All 3 of its bonus buys return 95.00%.
What is the max win in Devils Spawn and how likely is it?
The top payout is 5,000× the base bet. On a base spin it lands 1 in 44,776 spins. In the Hellspark buy (50×) 5,000× lands 1 in 1,706 buys.
Does Devils Spawn have a bonus buy, and what does it cost?
Yes, 3 buy modes. Hellspark: 50× the base bet, 95.00% RTP, an expected cost of 2.50× the base bet per buy. Rising Inferno: 100× the base bet, 95.00% RTP, an expected cost of 5.00× the base bet per buy. Eternal Damnation: 200× the base bet, 95.00% RTP, an expected cost of 10.00× the base bet per buy.
Is Devils Spawn high or low volatility?
High. Its base-mode standard deviation is 27.6× 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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