Uncle Franks Lawnsweeper slot: RTP and max win
Uncle Franks Lawnsweeper is a medium-volatility slot by Rat Hole Reels on Stake Engine, released 20 Feb 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 5,000× the bet; from a base spin it lands about once every 122,116 spins. It has 2 bonus buys priced at 100× to 200× the bet; the best returns 95.80%, so each buy costs 8.40× the bet on average over the long run. It is the No. 6706 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 v20. "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× | 96.00% | 5,000× | 1 in 122,116 | 1 in 3.56 | 1 in 7.11 | 0.04× base | Simulate |
| Bonusmine | Bonus buy | 100× | 95.72% | 5,000× | 1 in 101 | – | 1 in 10 | 4.28× base | Simulate |
| Bonusmeds | Bonus buy | 200× | 95.80% | 5,000× | 1 in 77 | – | 1 in 12 | 8.40× base | Simulate |
Work out the cost of Uncle Franks Lawnsweeper 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 | |
|---|---|---|
| v20 | 96.000% | Active |
Frequently asked
What is the RTP of Uncle Franks Lawnsweeper?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 20. Its bonus buys return between 95.72% and 95.80%.
What is the max win in Uncle Franks Lawnsweeper and how likely is it?
The top payout is 5,000× the base bet. On a base spin it lands 1 in 122,116 spins. In the Bonusmeds buy (200×) 5,000× lands 1 in 77 buys.
Does Uncle Franks Lawnsweeper have a bonus buy, and what does it cost?
Yes, 2 buy modes. Bonusmine: 100× the base bet, 95.72% RTP, an expected cost of 4.28× the base bet per buy. Bonusmeds: 200× the base bet, 95.80% RTP, an expected cost of 8.40× the base bet per buy.
Is Uncle Franks Lawnsweeper high or low volatility?
Medium. Its base-mode standard deviation is 14.9× 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.
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