Barbarians Bounty slot: RTP and max win
Barbarians Bounty is a high-volatility slot by Mental Machines on Stake Engine, released 22 Sep 2026. Its base game returns 95.00%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 2,000,000 spins. It has 4 bonus buys priced at 50× to 1,000× the bet; the best returns 95.00%, so each buy costs 2.50× the bet on average over the long run. It is the No. 4154 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 | |
|---|---|---|---|---|---|---|---|---|---|
| Base | Base spin | 1.00× | 95.00% | 10,000× | 1 in 2,000,000 | 1 in 4.55 | 1 in 17 | 0.05× base | Simulate |
| Lookout | Boosted spin | 3.00× | 95.00% | 10,000× | 1 in 1,000,000 | 1 in 3.35 | 1 in 9.08 | 0.15× base | Simulate |
| Silent Alarm | Bonus buy | 50× | 95.00% | 10,000× | 1 in 200,000 | – | 1 in 4.00 | 2.50× base | Simulate |
| Smash Grab | Bonus buy | 250× | 95.00% | 10,000× | 1 in 4,000 | 1 in 1.01 | 1 in 4.13 | 12.50× base | Simulate |
| Big Score | Bonus buy | 500× | 95.00% | 10,000× | 1 in 2,000 | 1 in 1.01 | 1 in 3.75 | 25.00× base | Simulate |
| Dragnet | Bonus buy | 1,000× | 95.00% | 10,000× | 1 in 6,495 | – | 1 in 5.11 | 50.00× base | Simulate |
Work out the cost of Barbarians Bounty 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 | 95.000% | Active |
Frequently asked
What is the RTP of Barbarians Bounty?
Base spins return 95.00% of the amount wagered over the long run, from the published outcome table for version 2. All 4 of its bonus buys return 95.00%.
What is the max win in Barbarians Bounty and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 2,000,000 spins. In the Silent Alarm buy (50×) 10,000× lands 1 in 200,000 buys.
Does Barbarians Bounty have a bonus buy, and what does it cost?
Yes, 4 buy modes. Silent Alarm: 50× the base bet, 95.00% RTP, an expected cost of 2.50× the base bet per buy. Smash Grab: 250× the base bet, 95.00% RTP, an expected cost of 12.50× the base bet per buy. Big Score: 500× the base bet, 95.00% RTP, an expected cost of 25.00× the base bet per buy. Dragnet: 1,000× the base bet, 95.00% RTP, an expected cost of 50.00× the base bet per buy.
Is Barbarians Bounty high or low volatility?
High. Its base-mode standard deviation is 29.0× 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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