Firefly Bayou cover art

Firefly Bayou slot: RTP and max win

By rilljke. Released 8 Oct 2026, math version 1.
Medium volatilityNo. 1839 most played this monthNew

Firefly Bayou is a medium-volatility slot by rilljke on Stake Engine, released 8 Oct 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 7,723,678 spins. It has 3 bonus buys priced at 100× to 400× the bet; the best returns 96.00%, so each buy costs 4.00× the bet on average over the long run. It is the No. 1839 most played Engine slot over the last 30 days.

Base RTP
96.00%
catalogue figure 96.000%
Max win
25,000×
of the base bet
Max win, base spins
1 in 7,723,678
25,000× top payout per spin
Base spin pays nothing
71.4%
of spins
Players, last 30 days
559
$38K wagered (Engine Insights)

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.

ModeTypeCostRTPMax winMax win oddsPays anythingReturns the costExpected cost per round
BaseBase spin1.00×96.00%25,000×1 in 7,723,6781 in 3.501 in 6.970.04× base Simulate
MoonriseBoosted spin1.25×96.00%25,000×1 in 2,885,2371 in 3.541 in 8.890.05× base Simulate
FrenzyBoosted spin4.00×96.00%25,000×1 in 8,335,5561 in 3.051 in 4.210.16× base Simulate
NightBonus buy100×96.00%1,707×1 in 70,962every round1 in 2.944.00× base Simulate
GroveBonus buy200×96.00%23,060×1 in 81,627every round1 in 4.538.00× base Simulate
MoonBonus buy400×96.00%25,000×1 in 2,8301 in 1.011 in 4.9016.00× base Simulate

Work out the cost of Firefly Bayou 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
v196.000%Active

Frequently asked

What is the RTP of Firefly Bayou?

Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 1. All 3 of its bonus buys return 96.00%.

What is the max win in Firefly Bayou and how likely is it?

The top payout is 25,000× the base bet. On a base spin it lands 1 in 7,723,678 spins. In the Night buy (100×) 1,707× lands 1 in 70,962 buys.

Does Firefly Bayou have a bonus buy, and what does it cost?

Yes, 3 buy modes. Night: 100× the base bet, 96.00% RTP, an expected cost of 4.00× the base bet per buy. Grove: 200× the base bet, 96.00% RTP, an expected cost of 8.00× the base bet per buy. Moon: 400× the base bet, 96.00% RTP, an expected cost of 16.00× the base bet per buy.

Is Firefly Bayou high or low volatility?

Medium. Its base-mode standard deviation is 16.1× 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 Firefly Bayou

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

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