Halloween Granny slot: RTP and max win
Halloween Granny is a low-volatility slot by ODD GAMING on Stake Engine, released 8 Oct 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 2,810,423 spins. It has 2 bonus buys priced at 57× to 76× the bet; the best returns 96.00%, so each buy costs 2.28× the bet on average over the long run. It is the No. 1876 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× | 96.00% | 5,000× | 1 in 2,810,423 | 1 in 2.15 | 1 in 5.15 | 0.04× base | Simulate |
| Haunted | Bonus buy | 57× | 96.00% | 5,000× | 1 in 508,170 | every round | 1 in 3.77 | 2.28× base | Simulate |
| Brew | Bonus buy | 76× | 96.00% | 5,000× | 1 in 6,006 | – | 1 in 3.56 | 3.04× base | Simulate |
Work out the cost of Halloween Granny 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 | 96.000% | Active |
Frequently asked
What is the RTP of Halloween Granny?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 1. All 2 of its bonus buys return 96.00%.
What is the max win in Halloween Granny and how likely is it?
The top payout is 5,000× the base bet. On a base spin it lands 1 in 2,810,423 spins. In the Haunted buy (57×) 5,000× lands 1 in 508,170 buys.
Does Halloween Granny have a bonus buy, and what does it cost?
Yes, 2 buy modes. Haunted: 57× the base bet, 96.00% RTP, an expected cost of 2.28× the base bet per buy. Brew: 76× the base bet, 96.00% RTP, an expected cost of 3.04× the base bet per buy.
Is Halloween Granny high or low volatility?
Low. Its base-mode standard deviation is 11.0× 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.
Slots with similar math to Halloween Granny
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Happy ReelsLucid Gaming RTP96.00%Max win5,000×Volatility
Gates of Bellatro : HoldemGumble RTP96.00%Max win5,000×Volatility
Bull RunnerBolly Games RTP96.00%Max win5,000×Volatility
Crystal Cart PachinkoMaxRNG RTP96.00%Max win5,042×Volatility
Toaster BathLucky Foot RTP96.00%Max win5,000×Volatility
HEXRIOT9x16 RTP96.00%Max win5,000×Volatility