Gold Fillings cover art

Gold Fillings slot: RTP and max win

By TUNS LABS. Released 21 Oct 2026, math version 2.
Medium volatilityNo. 1125 most played this monthNew

Gold Fillings is a medium-volatility slot by TUNS LABS on Stake Engine, released 21 Oct 2026. Its base game returns 96.50%, above the median Engine slot (96.02%) and higher than 66% of them. The top payout is 10,000× the bet; from a base spin it lands about once every 6,374,819 spins. It has 4 bonus buys priced at 100× to 650× the bet; the best returns 96.50%, so each buy costs 3.50× the bet on average over the long run. It is the No. 1125 most played Engine slot over the last 30 days.

Base RTP
96.50%
catalogue figure 96.500%
Max win
10,000×
of the base bet
Max win, base spins
1 in 6,374,819
10,000× top payout per spin
Base spin pays nothing
70.9%
of spins
Players, last 30 days
1,520
$140K 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 spin1.00×96.50%10,000×1 in 6,374,8191 in 3.411 in 6.800.04× base Simulate
Sweet ToothBoosted spin2.00×96.50%10,000×1 in 1,696,0701 in 3.401 in 120.07× base Simulate
Fresh FillingBoosted spin2.20×96.50%10,000×1 in 7,436,2971 in 3.411 in 5.220.08× base Simulate
CheckupBonus buy100×96.50%10,000×1 in 96,192every round1 in 3.853.50× base Simulate
AppointmentBonus buy170×96.50%10,000×1 in 12,194every round1 in 4.325.95× base Simulate
CleaningBonus buy270×96.50%10,000×1 in 5,203–1 in 4.069.45× base Simulate
Root CanalBonus buy650×96.50%10,000×1 in 2,285–1 in 3.2922.75× base Simulate

Work out the cost of Gold Fillings 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
v296.500%Active

Frequently asked

What is the RTP of Gold Fillings?

Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 2. All 4 of its bonus buys return 96.50%.

What is the max win in Gold Fillings and how likely is it?

The top payout is 10,000× the base bet. On a base spin it lands 1 in 6,374,819 spins. In the Checkup buy (100×) 10,000× lands 1 in 96,192 buys.

Does Gold Fillings have a bonus buy, and what does it cost?

Yes, 4 buy modes. Checkup: 100× the base bet, 96.50% RTP, an expected cost of 3.50× the base bet per buy. Appointment: 170× the base bet, 96.50% RTP, an expected cost of 5.95× the base bet per buy. Cleaning: 270× the base bet, 96.50% RTP, an expected cost of 9.45× the base bet per buy. Root Canal: 650× the base bet, 96.50% RTP, an expected cost of 22.75× the base bet per buy.

Is Gold Fillings high or low volatility?

Medium. Its base-mode standard deviation is 17.0× 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 Gold Fillings

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

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