The Royal Family slot: RTP and max win
The Royal Family is a high-volatility slot by Static on Stake Engine, released 18 Aug 2026. Its base game returns 96.50%, above the median Engine slot (96.02%) and higher than 66% of them. The top payout is 55,555× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 2,005,654 spins. It has 4 bonus buys priced at 100× to 1,000× the bet; the best returns 96.20%, so each buy costs 3.80× the bet on average over the long run. It is the No. 4755 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 v18. "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× | 96.50% | 55,555× | 1 in 2,005,654 | 1 in 8.34 | 1 in 13 | 0.04× base | Simulate |
| Ante | Boosted spin | 3.00× | 96.50% | 55,555× | 1 in 668,536 | 1 in 8.42 | 1 in 21 | 0.11× base | Simulate |
| Regular | Bonus buy | 100× | 96.20% | 55,555× | 1 in 20,056 | – | 1 in 4.01 | 3.80× base | Simulate |
| Super | Bonus buy | 300× | 96.20% | 55,555× | 1 in 6,685 | – | 1 in 4.19 | 11.40× base | Simulate |
| Mystery | Bonus buy | 500× | 96.20% | 55,555× | 1 in 4,011 | 1 in 2.22 | 1 in 6.74 | 19.00× base | Simulate |
| Shocker Spins | Bonus buy | 1,000× | 96.10% | 55,555× | 1 in 2,006 | 1 in 2.38 | 1 in 5.37 | 39.00× base | Simulate |
Work out the cost of The Royal Family 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 | |
|---|---|---|
| v18 | 96.500% | Active |
Frequently asked
What is the RTP of The Royal Family?
Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 18. Its bonus buys return between 96.10% and 96.20%.
What is the max win in The Royal Family and how likely is it?
The top payout is 55,555× the base bet. On a base spin it lands 1 in 2,005,654 spins. In the Regular buy (100×) 55,555× lands 1 in 20,056 buys.
Does The Royal Family have a bonus buy, and what does it cost?
Yes, 4 buy modes. Regular: 100× the base bet, 96.20% RTP, an expected cost of 3.80× the base bet per buy. Super: 300× the base bet, 96.20% RTP, an expected cost of 11.40× the base bet per buy. Mystery: 500× the base bet, 96.20% RTP, an expected cost of 19.00× the base bet per buy. Shocker Spins: 1,000× the base bet, 96.10% RTP, an expected cost of 39.00× the base bet per buy.
Is The Royal Family high or low volatility?
High. Its base-mode standard deviation is 56.8× 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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