Harakiri slot: RTP and max win
Harakiri is a high-volatility slot by Colorful Play on Stake Engine, released 23 May 2026. Its base game returns 96.11%, above the median Engine slot (96.02%) and higher than 54% of them. The top payout is 20,000× the bet, bigger than 59% of Engine slots; from a base spin it lands about once every 2,646,073 spins. It has 4 bonus buys priced at 50× to 1,000× the bet; the best returns 96.11%, so each buy costs 3.89× the bet on average over the long run. It is the No. 724 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 v4. "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× | 96.11% | 20,000× | 1 in 2,646,073 | 1 in 4.53 | 1 in 7.16 | 0.04× base | Simulate |
| Extra Chance | Boosted spin | 2.00× | 96.11% | 20,000× | 1 in 2,496,092 | 1 in 4.36 | 1 in 13 | 0.08× base | Simulate |
| Feature Spin | Bonus buy | 50× | 96.11% | 20,000× | 1 in 31,404 | 1 in 1.30 | 1 in 5.06 | 1.95× base | Simulate |
| Regular Bonus | Bonus buy | 100× | 96.11% | 20,000× | 1 in 23,146 | – | 1 in 3.80 | 3.89× base | Simulate |
| Super Bonus | Bonus buy | 300× | 96.11% | 20,000× | 1 in 7,242 | – | 1 in 4.91 | 11.67× base | Simulate |
| Epic Bonus | Bonus buy | 1,000× | 96.11% | 20,000× | 1 in 143 | – | 1 in 5.26 | 38.90× base | Simulate |
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 | |
|---|---|---|
| v4 | 96.110% | Active |
| v2 | 96.110% |
Frequently asked
What is the RTP of Harakiri?
Base spins return 96.11% of the amount wagered over the long run, from the published outcome table for version 4. All 4 of its bonus buys return 96.11%.
What is the max win in Harakiri and how likely is it?
The top payout is 20,000× the base bet. On a base spin it lands 1 in 2,646,073 spins. In the Regular Bonus buy (100×) 20,000× lands 1 in 23,146 buys.
Does Harakiri have a bonus buy, and what does it cost?
Yes, 4 buy modes. Feature Spin: 50× the base bet, 96.11% RTP, an expected cost of 1.95× the base bet per buy. Regular Bonus: 100× the base bet, 96.11% RTP, an expected cost of 3.89× the base bet per buy. Super Bonus: 300× the base bet, 96.11% RTP, an expected cost of 11.67× the base bet per buy. Epic Bonus: 1,000× the base bet, 96.11% RTP, an expected cost of 38.90× the base bet per buy.
Is Harakiri high or low volatility?
High. Its base-mode standard deviation is 28.3× 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.
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