Battle Royal slot: RTP and max win
Battle Royal is a high-volatility slot by House Gaming on Stake Engine, released 24 Aug 2026. Its base game returns 90.30%, below the median Engine slot (96.02%). The top payout is 50,000× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 1,428,571 spins. It has 5 bonus buys priced at 20× to 500× the bet; the best returns 90.30%, so each buy costs 1.94× the bet on average over the long run. It is the No. 5989 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 v1. "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× | 90.30% | 50,000× | 1 in 1,428,571 | 1 in 2.74 | 1 in 10 | 0.10× base | Simulate |
| Big Chance | Boosted spin | 5.00× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 2.72 | 1 in 30 | 0.48× base | Simulate |
| Ultra Chance | Boosted spin | 10× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 2.67 | 1 in 27 | 0.97× base | Simulate |
| Wild Rush | Bonus buy | 20× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 1.17 | 1 in 8.49 | 1.94× base | Simulate |
| Golden Spoils | Bonus buy | 30× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 1.99 | 1 in 8.64 | 2.91× base | Simulate |
| Champion Clusters | Bonus buy | 50× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 1.17 | 1 in 5.37 | 4.85× base | Simulate |
| Arena Clash | Bonus buy | 100× | 90.30% | 50,000× | 1 in 1,000,000 | 1 in 1.02 | 1 in 4.77 | 9.70× base | Simulate |
| Golden Dusk | Bonus buy | 500× | 90.30% | 50,000× | 1 in 64,750 | every round | 1 in 4.96 | 48.50× base | Simulate |
Work out the cost of Battle Royal 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 | |
|---|---|---|
| v1 | 90.300% | Active |
Frequently asked
What is the RTP of Battle Royal?
Base spins return 90.30% of the amount wagered over the long run, from the published outcome table for version 1. All 5 of its bonus buys return 90.30%.
What is the max win in Battle Royal and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 1,428,571 spins. In the Wild Rush buy (20×) 50,000× lands 1 in 1,000,000 buys.
Does Battle Royal have a bonus buy, and what does it cost?
Yes, 5 buy modes. Wild Rush: 20× the base bet, 90.30% RTP, an expected cost of 1.94× the base bet per buy. Golden Spoils: 30× the base bet, 90.30% RTP, an expected cost of 2.91× the base bet per buy. Champion Clusters: 50× the base bet, 90.30% RTP, an expected cost of 4.85× the base bet per buy. Arena Clash: 100× the base bet, 90.30% RTP, an expected cost of 9.70× the base bet per buy. Golden Dusk: 500× the base bet, 90.30% RTP, an expected cost of 48.50× the base bet per buy.
Is Battle Royal high or low volatility?
High. Its base-mode standard deviation is 47.5× 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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