Grimoire
96.66%
RTP
20,000x
Max Win
Bonus buy options
- Extra Bet3x spin
- Bonus100x bet
- Super Bonus250x bet
- Inkmagic Spin500x spin
- Mystery500x spin
- Reels
- 6
- Rows
- 6
- Paylines (up to)
- Cluster Pays
- Min Bet
- 0.1
- Max Bet
- 1000
- Release Date
- October 31, 2026
A Stake Engine title, so there is no maker demo to embed here. On Stake it can be played without an account as Demo (Fun Play).
About this Slot
Grimoire is a fantasy magic and fortune-telling slot by Bad Habit with an RTP of 96.66%, high volatility and a maximum win of 20,000x. The game uses a 6x6 grid with Cluster Pays: five or more matching symbols connected horizontally or vertically form a winning cluster, and multiple clusters on a single spin each pay separately.
Winning clusters trigger a free page turn, advancing through the bonus stages. Three Free Spins symbols trigger the Bonus, four trigger the Super Bonus, and five or more trigger the Hidden Bonus. During any bonus round, two additional Free Spins symbols award three extra spins, while three or more award five extra spins.
The Bonus round grants ten free spins with a multiplier that starts at x1 and increases by one after each re-spin, resetting to x1 at the beginning of each new spin. The Super Bonus also awards ten free spins, but the multiplier starts at x1 and never resets during the entire bonus round.
Mystery Symbols resolve to a random outcome on each spin. The Inkmagic Spin activates inside bonus rounds only: each cluster position fills a flask, and every 20 positions filled triggers a shower of Wilds. These Wilds never cover Free Spins symbols or other Wilds.
Five bonus buy options are available. Extra Bet costs 3x per spin. Bonus costs 100x the bet. Super Bonus costs 250x the bet. Inkmagic Spin costs 500x per spin. Mystery costs 500x per spin, though it may return less than its cost.
Grimoire Community RTP
Real RTP estimated from rounds contributed by the community, across all uploaders.
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Grimoire RTP Calculator
Grimoire has a theoretical RTP of 96.66%. Its volatility is High, so expect long dry spells punctuated by rare, large multipliers. Its win potential is capped at 20,000x your stake. Use the calculator below to estimate your expected return, variance range and risk of ruin over any number of spins.
Grimoire Variance Simulator
Grimoire sessions can swing far from its 96.66% average - its volatility is rated High. The simulator runs many virtual bankroll runs to estimate the bust rate, typical drawdown and best/worst outcomes over a set number of spins - compare a cautious bankroll against an aggressive one.
All Wins
No wins on this slot yet.
Play on Stake*Frequently asked questions about Grimoire
An RTP of 96.66% means Grimoire is built to pay back around 96.66 for every 100 wagered over millions of spins. Any single session can land far above or below that - use the RTP calculator on this page to model your own bet size and spin count.
Over the long run Grimoire's house edge is about 3.34% of everything you wager - roughly 3.34 lost per 100 staked. Short sessions vary widely; the calculator above shows the expected loss and variance range for your inputs.
Quite a lot. Because wins cluster around rare big hits, your balance can move far from the 96.66% average in either direction. The variance simulator above shows typical drawdowns, bust rate and best/worst outcomes for your bankroll.
It depends on your bet size and how long you want to play Grimoire. Use the variance simulator above to test a cautious versus an aggressive bankroll and see how often each survives your target number of spins.
