BlackJack 1000 slot: RTP and max win
BlackJack 1000 is a medium-volatility slot by xLab on Stake Engine, released 2 May 2026. Its base game returns 96.67%, above the median Engine slot (96.02%) and higher than 84% of them. The top payout is 15,000× the bet, bigger than 50% of Engine slots; from a base spin it lands about once every 10,870 spins. It has 1 bonus buy priced at 100× the bet; the best returns 96.67%, so each buy costs 3.33× the bet on average over the long run. It is the No. 2491 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 | |
|---|---|---|---|---|---|---|---|---|---|
| Bonus | Bonus buy | 100× | 96.67% | 15,000× | 1 in 10,870 | 1 in 1.23 | 1 in 4.28 | 3.33× base | Simulate |
| Base | Unknown | – | 96.37% | – | – | – | – | – |
Work out the cost of BlackJack 1000 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 | 96.671% | Active |
Frequently asked
What is the RTP of BlackJack 1000?
Base spins return 96.67% of the amount wagered over the long run, from the published outcome table for version 2. Its bonus buy returns 96.67%.
What is the max win in BlackJack 1000 and how likely is it?
The top payout is 15,000× the base bet. On a base spin it lands 1 in 10,870 spins. In the Bonus buy (100×) 15,000× lands 1 in 10,870 buys.
Does BlackJack 1000 have a bonus buy, and what does it cost?
Yes, 1 buy mode. Bonus: 100× the base bet, 96.67% RTP, an expected cost of 3.33× the base bet per buy.
Is BlackJack 1000 high or low volatility?
Medium. Its base-mode standard deviation is 16.8× the bet, which puts it in the middle 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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