Katana Monarch slot: RTP and max win
Katana Monarch is a low-volatility slot by unchained on Stake Engine, released 10 May 2026. Its base game returns 94.50%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 10,241,001 spins. It has 3 bonus buys priced at 50× to 300× the bet; the best returns 95.00%, so each buy costs 5.00× the bet on average over the long run. It is the No. 4732 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× | 94.50% | 10,000× | 1 in 10,241,001 | 1 in 1.47 | 1 in 8.78 | 0.06× base | Simulate |
| Enchanted | Boosted spin | 3.00× | 94.50% | 10,000× | 1 in 8,000,000 | 1 in 1.24 | 1 in 8.90 | 0.16× base | Simulate |
| Monarch Sword | Bonus buy | 50× | 94.50% | 10,000× | 1 in 3,000,000 | 1 in 1.70 | 1 in 4.06 | 2.75× base | Simulate |
| Bonus | Bonus buy | 100× | 95.00% | 10,000× | 1 in 15,000,000 | 1 in 1.22 | 1 in 3.56 | 5.00× base | Simulate |
| Super Bonus | Bonus buy | 300× | 94.50% | 10,000× | 1 in 10,000,000 | 1 in 1.21 | 1 in 2.75 | 16.50× base | Simulate |
Work out the cost of Katana Monarch 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 | 94.500% | Active |
Frequently asked
What is the RTP of Katana Monarch?
Base spins return 94.50% of the amount wagered over the long run, from the published outcome table for version 1. Its bonus buys return between 94.50% and 95.00%.
What is the max win in Katana Monarch and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 10,241,001 spins. In the Bonus buy (100×) 10,000× lands 1 in 15,000,000 buys.
Does Katana Monarch have a bonus buy, and what does it cost?
Yes, 3 buy modes. Monarch Sword: 50× the base bet, 94.50% RTP, an expected cost of 2.75× the base bet per buy. Bonus: 100× the base bet, 95.00% RTP, an expected cost of 5.00× the base bet per buy. Super Bonus: 300× the base bet, 94.50% RTP, an expected cost of 16.50× the base bet per buy.
Is Katana Monarch high or low volatility?
Low. Its base-mode standard deviation is 9.5× the bet, which puts it in the lowest 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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