Keno Max cover art

Keno Max slot: RTP and max win

By Bolly Studios. Released 25 Sep 2026, math version 2.
Low volatilityNo. 1401 most played this monthMini game

Keno Max is a low-volatility slot by Bolly Studios on Stake Engine, released 25 Sep 2026. The top payout is 50,000× the bet. It is the No. 1401 most played Engine slot over the last 30 days.

Base RTP
96.70%
catalogue figure 96.700%
Max win
50,000×
of the base bet
Max win, base spins
1 in 4.31
1.85× top payout per spin
Base spin pays nothing
–
of spins
Players, last 30 days
1,056
$87K wagered (Engine Insights)
The 50,000× max win can't be reached from base spins in the published math. Base spins top out at 1.85×.

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.

ModeTypeCostRTPMax winMax win oddsPays anythingReturns the costExpected cost per round
Easy 1Base spin1.00×96.70%1.85×1 in 4.31–1 in 4.310.03× base Simulate
Easy 10Base spin1.00×96.70%1,000×1 in 1,116,4901 in 1.411 in 1.410.03× base Simulate
Easy 2Base spin1.00×96.70%3.80×1 in 161 in 2.331 in 2.330.03× base Simulate
Easy 3Base spin1.00×96.70%26×1 in 701 in 1.901 in 1.900.03× base Simulate
Easy 4Base spin1.00×96.70%90×1 in 3141 in 4.691 in 4.690.03× base Simulate
Easy 5Base spin1.00×96.70%300×1 in 1,3221 in 3.511 in 3.510.03× base Simulate
Easy 6Base spin1.00×96.70%700×1 in 5,9501 in 3.121 in 3.120.03× base Simulate
Easy 7Base spin1.00×96.70%700×1 in 22,4581 in 2.471 in 2.470.03× base Simulate
Easy 8Base spin1.00×96.70%800×1 in 78,1261 in 1.881 in 1.880.03× base Simulate
Easy 9Base spin1.00×96.70%1,000×1 in 294,4241 in 1.611 in 1.610.03× base Simulate
Hard 1Base spin1.00×96.70%3.00×1 in 3.69–1 in 3.690.03× base Simulate
Hard 10Base spin1.00×96.70%10,000×1 in 1,218,0271 in 2.451 in 2.450.03× base Simulate
Hard 2Base spin1.00×96.70%15×1 in 201 in 2.801 in 200.03× base Simulate
Hard 3Base spin1.00×96.70%80×1 in 991 in 9.861 in 9.860.03× base Simulate
Hard 4Base spin1.00×96.70%300×1 in 4531 in 351 in 350.03× base Simulate
Hard 5Base spin1.00×96.70%1,000×1 in 1,9491 in 181 in 180.03× base Simulate
Hard 6Base spin1.00×96.70%2,000×1 in 8,0791 in 121 in 120.03× base Simulate
Hard 7Base spin1.00×96.70%2,000×1 in 29,3301 in 7.351 in 7.350.03× base Simulate
Hard 8Base spin1.00×96.70%2,500×1 in 98,4151 in 4.671 in 4.670.03× base Simulate
Hard 9Base spin1.00×96.70%3,500×1 in 326,8651 in 3.121 in 3.120.03× base Simulate
Maximum 1Base spin1.00×96.70%4.00×1 in 4.141 in 4.141 in 4.140.03× base Simulate
Maximum 10Base spin1.00×96.70%50,000×1 in 74,4191 in 2.111 in 510.03× base Simulate
Maximum 2Base spin1.00×96.70%20×1 in 211 in 211 in 210.03× base Simulate
Maximum 3Base spin1.00×96.70%500×1 in 5221 in 521 in 5220.03× base Simulate
Maximum 4Base spin1.00×96.70%1,000×1 in 1,0531 in 811 in 810.03× base Simulate
Maximum 5Base spin1.00×96.70%2,500×1 in 3,0201 in 281 in 1890.03× base Simulate
Maximum 6Base spin1.00×96.70%6,000×1 in 13,0691 in 191 in 850.03× base Simulate
Maximum 7Base spin1.00×96.70%12,500×1 in 34,9261 in 8.751 in 1660.03× base Simulate
Maximum 8Base spin1.00×96.70%25,000×1 in 80,1911 in 3.811 in 450.03× base Simulate
Maximum 9Base spin1.00×96.70%40,000×1 in 91,7521 in 2.501 in 1000.03× base Simulate
Medium 1Base spin1.00×96.70%2.50×1 in 3.57–1 in 3.570.03× base Simulate
Medium 10Base spin1.00×96.70%3,000×1 in 1,189,3201 in 1.501 in 2.390.03× base Simulate
Medium 2Base spin1.00×96.70%8.00×1 in 171 in 2.381 in 2.380.03× base Simulate
Medium 3Base spin1.00×96.70%50×1 in 841 in 2.261 in 8.370.03× base Simulate
Medium 4Base spin1.00×96.70%180×1 in 3841 in 5.731 in 5.730.03× base Simulate
Medium 5Base spin1.00×96.70%600×1 in 1,6221 in 4.311 in 150.03× base Simulate
Medium 6Base spin1.00×96.70%1,400×1 in 7,0391 in 3.691 in 100.03× base Simulate
Medium 7Base spin1.00×96.70%1,400×1 in 25,8771 in 2.851 in 6.480.03× base Simulate
Medium 8Base spin1.00×96.70%1,600×1 in 86,1081 in 2.081 in 4.090.03× base Simulate
Medium 9Base spin1.00×96.70%2,000×1 in 319,4771 in 1.741 in 3.050.03× base Simulate

Version history

Base-mode RTP per published math version. Older versions stay public in the fairness API, so changes can be checked.

VersionBase RTP
v296.700%Active

Frequently asked

What is the RTP of Keno Max?

Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 2. All 40 modes return 96.70%.

What is the max win in Keno Max and how likely is it?

The top payout is 50,000× the base bet. On a base spin the top payout of 1.85× lands 1 in 4.31 spins.

Does Keno Max have a bonus buy?

No. None of its published modes costs 20× the base bet or more.

Is Keno Max high or low volatility?

Low. Its base-mode standard deviation is 3.1× 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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