Haunted Laundromat slot: RTP and max win
Haunted Laundromat is a low-volatility slot by Big Ducking Wings on Stake Engine, released 8 Sep 2026. Its base game returns 95.00%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 10,000,000 spins. It has 6 bonus buys priced at 40× to 1,200× the bet; the best returns 95.00%, so each buy costs 2.00× the bet on average over the long run. It is the No. 4586 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× | 95.00% | 10,000× | 1 in 10,000,000 | 1 in 5.05 | 1 in 15 | 0.05× base | Simulate |
| Sorted Load | Boosted spin | 10× | 95.00% | 10,000× | 1 in 9,999,999 | 1 in 2.30 | 1 in 5.64 | 0.50× base | Simulate |
| Delicates | Bonus buy | 40× | 95.00% | 10,000× | 1 in 10,000,015 | 1 in 1.68 | 1 in 25 | 2.00× base | Simulate |
| Spin Cycle | Bonus buy | 100× | 95.00% | 10,000× | 1 in 9,999,999 | – | 1 in 2.74 | 5.00× base | Simulate |
| Night Shift | Bonus buy | 200× | 95.00% | 10,000× | 1 in 5,000,004 | 1 in 2.00 | 1 in 4.03 | 10.00× base | Simulate |
| Rinse Cycle | Bonus buy | 200× | 95.00% | 10,000× | 1 in 10,000,008 | – | 1 in 2.64 | 10.00× base | Simulate |
| Full Load | Bonus buy | 500× | 95.00% | 10,000× | 1 in 9,999,982 | – | 1 in 2.67 | 25.00× base | Simulate |
| Graveyard Shift | Bonus buy | 1,200× | 95.00% | 10,000× | 1 in 9,999,960 | – | 1 in 2.62 | 60.00× base | Simulate |
Work out the cost of Haunted Laundromat 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 | 95.000% | Active |
Frequently asked
What is the RTP of Haunted Laundromat?
Base spins return 95.00% of the amount wagered over the long run, from the published outcome table for version 1. All 6 of its bonus buys return 95.00%.
What is the max win in Haunted Laundromat and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 10,000,000 spins. In the Delicates buy (40×) 10,000× lands 1 in 10,000,015 buys.
Does Haunted Laundromat have a bonus buy, and what does it cost?
Yes, 6 buy modes. Delicates: 40× the base bet, 95.00% RTP, an expected cost of 2.00× the base bet per buy. Spin Cycle: 100× the base bet, 95.00% RTP, an expected cost of 5.00× the base bet per buy. Night Shift: 200× the base bet, 95.00% RTP, an expected cost of 10.00× the base bet per buy. Rinse Cycle: 200× the base bet, 95.00% RTP, an expected cost of 10.00× the base bet per buy. Full Load: 500× the base bet, 95.00% RTP, an expected cost of 25.00× the base bet per buy. Graveyard Shift: 1,200× the base bet, 95.00% RTP, an expected cost of 60.00× the base bet per buy.
Is Haunted Laundromat high or low volatility?
Low. Its base-mode standard deviation is 8.8× 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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