Blackout slot: RTP and max win
Blackout is a low-volatility slot by Irreverent Labs on Stake Engine, released 18 Aug 2026. Its base game returns 96.60%, above the median Engine slot (96.02%) and higher than 83% of them. The top payout is 20× the bet; from a base spin it lands about once every 1,000 spins. It is the No. 5421 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 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 | |
|---|---|---|---|---|---|---|---|---|---|
| Mark1 | Base spin | 1.00× | 96.60% | 20× | 1 in 1,000 | 1 in 1.13 | 1 in 1.13 | 0.03× base | Simulate |
| Mark1 Fin | Base spin | 1.00× | 96.60% | 20× | 1 in 1,000 | 1 in 1.13 | 1 in 2.43 | 0.03× base | Simulate |
| Mark2 | Base spin | 1.00× | 96.60% | 20× | 1 in 1,000 | 1 in 1.43 | 1 in 1.43 | 0.03× base | Simulate |
| Mark2 Fin | Base spin | 1.00× | 96.60% | 20× | 1 in 1,000 | 1 in 1.43 | 1 in 1.43 | 0.03× base | Simulate |
| Mark3 | Base spin | 1.00× | 96.60% | 2.30× | 1 in 2.38 | 1 in 2.38 | 1 in 2.38 | 0.03× base | Simulate |
| Mark3 Fin | Base spin | 1.00× | 96.60% | 3.80× | 1 in 119 | 1 in 2.38 | 1 in 2.38 | 0.03× base | Simulate |
| Mark4 | Base spin | 1.00× | 96.60% | 4.20× | 1 in 4.35 | 1 in 4.35 | 1 in 4.35 | 0.03× base | Simulate |
| Mark4 Fin | Base spin | 1.00× | 96.60% | 6.94× | 1 in 217 | 1 in 4.35 | 1 in 4.35 | 0.03× base | Simulate |
| Mark5 | Base spin | 1.00× | 96.60% | 6.90× | 1 in 7.14 | 1 in 7.14 | 1 in 7.14 | 0.03× base | Simulate |
| Mark5 Fin | Base spin | 1.00× | 96.60% | 11× | 1 in 357 | 1 in 7.14 | 1 in 7.14 | 0.03× 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 | |
|---|---|---|
| v5 | 96.600% | Active |
Frequently asked
What is the RTP of Blackout?
Base spins return 96.60% of the amount wagered over the long run, from the published outcome table for version 5. All 10 modes return 96.60%.
What is the max win in Blackout and how likely is it?
The top payout is 20× the base bet. On a base spin it lands 1 in 1,000 spins.
Does Blackout have a bonus buy?
No. None of its published modes costs 20× the base bet or more.
Is Blackout high or low volatility?
Low. Its base-mode standard deviation is 1.2× 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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