Bare Knuckle slot: RTP and max win
Bare Knuckle is a high-volatility slot by Arthea Gamelab on Stake Engine, released 14 Oct 2026. Its base game returns 96.70%, above the median Engine slot (96.02%) and higher than 86% of them. The top payout is 50,000× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 10,000,017 spins. It has 5 bonus buys priced at 75× to 1,000× the bet; the best returns 96.70%, so each buy costs 2.48× the bet on average over the long run. It is the No. 1343 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 v3. "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× | 96.70% | 50,000× | 1 in 10,000,017 | 1 in 3.45 | 1 in 98 | 0.03× base | Simulate |
| Walkout | Boosted spin | 2.00× | 96.70% | 50,000× | 1 in 5,000,008 | 1 in 3.21 | 1 in 30 | 0.07× base | Simulate |
| Clash | Bonus buy | 75× | 96.70% | 50,000× | 1 in 99,502 | – | 1 in 3.70 | 2.48× base | Simulate |
| Undercard | Bonus buy | 100× | 96.70% | 50,000× | 1 in 100,000 | – | 1 in 4.06 | 3.30× base | Simulate |
| Main Event | Bonus buy | 300× | 96.70% | 50,000× | 1 in 99,800 | – | 1 in 4.73 | 9.90× base | Simulate |
| Mystery | Bonus buy | 500× | 96.69% | 50,000× | 1 in 100,007 | – | 1 in 2.98 | 16.54× base | Simulate |
| Title Shot | Bonus buy | 1,000× | 96.70% | 50,000× | 1 in 100,000 | – | 1 in 3.36 | 33.00× base | Simulate |
Work out the cost of Bare Knuckle 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 | |
|---|---|---|
| v3 | 96.700% | Active |
Frequently asked
What is the RTP of Bare Knuckle?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 3. Its bonus buys return between 96.69% and 96.70%.
What is the max win in Bare Knuckle and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 10,000,017 spins. In the Clash buy (75×) 50,000× lands 1 in 99,502 buys.
Does Bare Knuckle have a bonus buy, and what does it cost?
Yes, 5 buy modes. Clash: 75× the base bet, 96.70% RTP, an expected cost of 2.48× the base bet per buy. Undercard: 100× the base bet, 96.70% RTP, an expected cost of 3.30× the base bet per buy. Main Event: 300× the base bet, 96.70% RTP, an expected cost of 9.90× the base bet per buy. Mystery: 500× the base bet, 96.69% RTP, an expected cost of 16.54× the base bet per buy. Title Shot: 1,000× the base bet, 96.70% RTP, an expected cost of 33.00× the base bet per buy.
Is Bare Knuckle high or low volatility?
High. Its base-mode standard deviation is 29.3× 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.
Slots with similar math to Bare Knuckle
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Final HourTrifecta RTP96.70%Max win50,000×Volatility
InfernoVoid Studios RTP96.70%Max win50,000×Volatility
Dead CanyonDaedalus RTP96.70%Max win50,000×Volatility
Hathors BlessingGlass Cannon RTP96.70%Max win50,000×Volatility
MOVING DAYVANDAL RTP96.70%Max win50,000×Volatility
Medieval FortuneHyperion RTP96.70%Max win50,000×Volatility