Midnight Mechanism cover art

Midnight Mechanism slot: RTP and max win

By Chaoz. Released 31 Oct 2026, math version 2.
Medium volatilityNo. 3664 most played this monthNew

Midnight Mechanism is a medium-volatility slot by Chaoz on Stake Engine, released 31 Oct 2026. Its base game returns 96.66%, above the median Engine slot (96.02%) and higher than 84% of them. The top payout is 22,222× the bet, bigger than 60% of Engine slots; from a base spin it lands about once every 9,998,172 spins. It has 3 bonus buys priced at 100× to 250× the bet; the best returns 96.66%, so each buy costs 3.34× the bet on average over the long run. It is the No. 3664 most played Engine slot over the last 30 days.

Base RTP
96.66%
catalogue figure 96.660%
Max win
22,222×
of the base bet
Max win, base spins
1 in 9,998,172
22,222× top payout per spin
Base spin pays nothing
61.0%
of spins
Players, last 30 days
65
$6K wagered (Engine Insights)

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
BaseBase spin1.00×96.66%22,222×1 in 9,998,1721 in 2.561 in 5.050.03× base Simulate
Star ChartBoosted spin1.50×96.66%22,222×1 in 5,000,6731 in 2.691 in 7.640.05× base Simulate
Ticking WildsBonus buy100×96.66%22,222×1 in 99,998every round1 in 3.463.34× base Simulate
Moon PhasesBonus buy120×96.66%22,222×1 in 99,999every round1 in 3.454.01× base Simulate
Grand AlignmentBonus buy250×96.66%22,222×1 in 49,999every round1 in 3.588.35× base Simulate

Work out the cost of Midnight Mechanism 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.

VersionBase RTP
v296.660%Active

Frequently asked

What is the RTP of Midnight Mechanism?

Base spins return 96.66% of the amount wagered over the long run, from the published outcome table for version 2. All 3 of its bonus buys return 96.66%.

What is the max win in Midnight Mechanism and how likely is it?

The top payout is 22,222× the base bet. On a base spin it lands 1 in 9,998,172 spins. In the Ticking Wilds buy (100×) 22,222× lands 1 in 99,998 buys.

Does Midnight Mechanism have a bonus buy, and what does it cost?

Yes, 3 buy modes. Ticking Wilds: 100× the base bet, 96.66% RTP, an expected cost of 3.34× the base bet per buy. Moon Phases: 120× the base bet, 96.66% RTP, an expected cost of 4.01× the base bet per buy. Grand Alignment: 250× the base bet, 96.66% RTP, an expected cost of 8.35× the base bet per buy.

Is Midnight Mechanism high or low volatility?

Medium. Its base-mode standard deviation is 14.4× the bet, which puts it in the middle 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 Midnight Mechanism

Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.

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