Pulse Vault slot: RTP and max win
Pulse Vault is a low-volatility slot by Volo Gaming on Stake Engine, released 7 Aug 2026. Its base game returns 94.00%, below the median Engine slot (96.02%). The top payout is 5,000× the bet; from a base spin it lands about once every 565,627 spins. It has 2 bonus buys priced at 50× to 200× the bet; the best returns 94.00%, so each buy costs 3.00× the bet on average over the long run. It is the No. 6213 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 v2. "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× | 94.00% | 5,000× | 1 in 565,627 | 1 in 4.45 | 1 in 6.81 | 0.06× base | Simulate |
| Surge Boost | Boosted spin | 1.50× | 94.00% | 5,000× | 1 in 179,724 | 1 in 3.31 | 1 in 5.37 | 0.09× base | Simulate |
| Quick Charge | Boosted spin | 5.00× | 94.00% | 5,000× | 1 in 118,337 | 1 in 2.28 | 1 in 3.60 | 0.30× base | Simulate |
| Reactor Rush | Bonus buy | 50× | 94.00% | 5,000× | 1 in 159,256 | – | 1 in 3.70 | 3.00× base | Simulate |
| Supernova Max | Bonus buy | 200× | 94.00% | 5,000× | 1 in 129,085 | – | 1 in 3.42 | 12.00× base | Simulate |
Work out the cost of Pulse Vault 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 | |
|---|---|---|
| v2 | 94.000% | Active |
Frequently asked
What is the RTP of Pulse Vault?
Base spins return 94.00% of the amount wagered over the long run, from the published outcome table for version 2. All 2 of its bonus buys return 94.00%.
What is the max win in Pulse Vault and how likely is it?
The top payout is 5,000× the base bet. On a base spin it lands 1 in 565,627 spins. In the Reactor Rush buy (50×) 5,000× lands 1 in 159,256 buys.
Does Pulse Vault have a bonus buy, and what does it cost?
Yes, 2 buy modes. Reactor Rush: 50× the base bet, 94.00% RTP, an expected cost of 3.00× the base bet per buy. Supernova Max: 200× the base bet, 94.00% RTP, an expected cost of 12.00× the base bet per buy.
Is Pulse Vault high or low volatility?
Low. Its base-mode standard deviation is 10.7× the bet, which puts it in the lowest 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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