Heist Protocol slot: RTP and max win
Heist Protocol is a low-volatility slot by SO Technologies on Stake Engine, released 29 Jul 2026. Its base game returns 96.25%, above the median Engine slot (96.02%) and higher than 60% of them. The top payout is 5,000× the bet. It has 2 bonus buys priced at 20× to 46× the bet; the best returns 96.50%, so each buy costs 0.71× 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 v5. "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 | |
|---|---|---|---|---|---|---|---|---|---|
| Data Heist | Base spin | 1.00× | 96.25% | 2,201× | 1 in 15,000,000 | 1 in 1.02 | 1 in 3.71 | 0.04× base | Simulate |
| Main Hall | Base spin | 1.00× | 96.65% | 2,500× | 1 in 15,000,000 | 1 in 1.01 | 1 in 2.95 | 0.03× base | Simulate |
| Maintenance Shaft | Base spin | 1.00× | 96.41% | 500× | 1 in 517,241 | – | 1 in 2.30 | 0.04× base | Simulate |
| Security Wing | Base spin | 1.00× | 96.49% | 1,987× | 1 in 15,000,000 | 1 in 1.02 | 1 in 4.19 | 0.04× base | Simulate |
| Bonus Safe | Bonus buy | 20× | 96.50% | 738× | 1 in 15,000,000 | every round | 1 in 2.89 | 0.71× base | Simulate |
| Bonus Breach | Bonus buy | 46× | 96.48% | 5,000× | 1 in 3,750,000 | 1 in 1.01 | 1 in 3.18 | 1.60× base | Simulate |
Work out the cost of Heist Protocol 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 | |
|---|---|---|
| v5 | 96.248% | Active |
Frequently asked
What is the RTP of Heist Protocol?
Base spins return 96.25% of the amount wagered over the long run, from the published outcome table for version 5. Its bonus buys return between 96.48% and 96.50%.
What is the max win in Heist Protocol and how likely is it?
The top payout is 5,000× the base bet. On a base spin the top payout of 2,201× lands 1 in 15,000,000 spins. In the Bonus Safe buy (20×) 738× lands 1 in 15,000,000 buys.
Does Heist Protocol have a bonus buy, and what does it cost?
Yes, 2 buy modes. Bonus Safe: 20× the base bet, 96.50% RTP, an expected cost of 0.71× the base bet per buy. Bonus Breach: 46× the base bet, 96.48% RTP, an expected cost of 1.60× the base bet per buy.
Is Heist Protocol high or low volatility?
Low. Its base-mode standard deviation is 4.5× 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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