Grimspell slot: RTP and max win
Grimspell is a high-volatility slot by Activ on Stake Engine, released 30 Sep 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 40,000× the bet, bigger than 84% of Engine slots; from a base spin it lands about once every 3,903,456 spins. It has 8 bonus buys priced at 200× to 1,000× the bet; the best returns 96.00%, so each buy costs 8.00× the bet on average over the long run. It is the No. 3510 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% | 40,000× | 1 in 3,903,456 | 1 in 2.78 | 1 in 12 | 0.04× base | Simulate |
| Bonus | Bonus buy | 200× | 96.00% | 40,000× | 1 in 30,892,801,977 | – | 1 in 4.55 | 8.00× base | Simulate |
| Mystery Bonus | Bonus buy | 260× | 96.00% | 40,000× | 1 in 486,075 | 1 in 2.00 | 1 in 6.62 | 10.40× base | Simulate |
| Super Bonus | Bonus buy | 400× | 96.00% | 40,000× | 1 in 25,188,916,877 | – | 1 in 4.55 | 16.00× base | Simulate |
| Coven Columns 2 | Bonus buy | 500× | 96.00% | 40,000× | 1 in 7,215,007,215 | – | 1 in 4.55 | 20.00× base | Simulate |
| Supernova | Bonus buy | 500× | 96.00% | 40,000× | 1 in 81,274 | – | 1 in 4.55 | 20.00× base | Simulate |
| Epic Bonus | Bonus buy | 800× | 96.00% | 40,000× | 1 in 366,153 | – | 1 in 4.26 | 32.00× base | Simulate |
| Coven Columns 3 | Bonus buy | 1,000× | 96.00% | 40,000× | 1 in 6,658,163 | – | 1 in 4.26 | 40.00× base | Simulate |
| Hidden Bonus | Bonus buy | 1,000× | 96.00% | 40,000× | 1 in 274,290 | – | 1 in 4.26 | 40.00× base | Simulate |
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 Grimspell?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 1. All 8 of its bonus buys return 96.00%.
What is the max win in Grimspell and how likely is it?
The top payout is 40,000× the base bet. On a base spin it lands 1 in 3,903,456 spins. In the Bonus buy (200×) 40,000× lands 1 in 30,892,801,977 buys.
Does Grimspell have a bonus buy, and what does it cost?
Yes, 8 buy modes. Bonus: 200× the base bet, 96.00% RTP, an expected cost of 8.00× the base bet per buy. Mystery Bonus: 260× the base bet, 96.00% RTP, an expected cost of 10.40× the base bet per buy. Super Bonus: 400× the base bet, 96.00% RTP, an expected cost of 16.00× the base bet per buy. Coven Columns 2: 500× the base bet, 96.00% RTP, an expected cost of 20.00× the base bet per buy. Supernova: 500× the base bet, 96.00% RTP, an expected cost of 20.00× the base bet per buy. Epic Bonus: 800× the base bet, 96.00% RTP, an expected cost of 32.00× the base bet per buy. Coven Columns 3: 1,000× the base bet, 96.00% RTP, an expected cost of 40.00× the base bet per buy. Hidden Bonus: 1,000× the base bet, 96.00% RTP, an expected cost of 40.00× the base bet per buy.
Is Grimspell high or low volatility?
High. Its base-mode standard deviation is 31.0× the bet, which puts it in the highest 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 Grimspell
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
HexyNoder RTP96.00%Max win40,000×Volatility
MLG 420Surge Play RTP96.00%Max win42,000×Volatility
Lucky Mans ChamberTitan Gaming RTP96.01%Max win40,000×Volatility
DreadfairChopChop Studios RTP96.00%Max win50,000×Volatility
Moo BeamWildCatch Studio RTP96.00%Max win50,000×Volatility
Heimdall's WatchBlooball Gaming RTP96.00%Max win50,000×Volatility