Free demo, RTP, volatility and bonus features of the Merlin's Grimoire slot by Play'n GO.
Journey to the woods of Avalon in Merlin's Grimoire. Discover the secrets of the ancient book in this magical 5-reel slot featuring expanding symbols and a dynamic way-multiplier system that increases your potential on every spin.
Merlin's Grimoire is an online slot from Play'n GO. Play'n GO develops a broad portfolio of online casino games, including celebrated slots, table games and bingo titles, with mobile-first demos and distinctive recurring series. CasinoCheck runs Merlin's Grimoire as a browser-based demo.
So the controls, presentation and feature flow can be checked without an account or a real-money stake. Trying the free version first shows whether the pace and interface suit you.
2%, high volatility and a stated maximum win of 30000x. The recorded release date is July 7, 2022. Treat the RTP as an average measured over very long play, not as a session forecast.
The volatility rating shows how bumpy the win distribution tends to be, and the max win marks the ceiling of the maths model.
Gameplay tags associated with Merlin's Grimoire include Bonus Buy. The list gives a fast overview of what drives the wins here. The detailed behaviour is described in the rules section, and the in-game help screens of Merlin's Grimoire carry the definitive payout table.
Spend the first rounds simply observing: how quickly Merlin's Grimoire resolves a spin, which symbols pay in the base game and how the display reacts when a feature is triggered. The information panel lists the current bet, the active lines and the payout table, and it is worth revisiting after every setting change.
A longer run gives a much better feel for the rhythm than a handful of spins.
Operators sometimes run different configurations of the same title. So check the RTP, limits and available features inside the casino version you open. What happens in a demo has no bearing on later real-money sessions. Set a spending limit before you start and stop when it is reached.
In the base game, reels 2, 3, and 4 can become 'active', splitting symbols to increase ways to win. Land 3 Scatters to trigger 10 Free Spins. During Free Spins, all 5 reels can become active. One symbol is chosen at random to become the Expanding Symbol.
If enough land to form a win, they expand to cover the entire reel. Scatters act as Wilds and can retrigger the feature. The game uses a dynamic payway system that can reach up to 7,776 ways.
How to play the Merlin's Grimoire demo: open the game, wait for the interface to finish loading and review the paytable or help menu before starting. Choose a comfortable virtual stake with the on-screen controls, then begin a round and let the result complete before changing settings. The demo uses play credits.
But the controls and feature sequence are designed to mirror the corresponding game experience.
For this slot format, set the virtual stake and press spin. Winning combinations are evaluated according to the paytable after the reels or grid settle. Check whether the game uses paylines, ways, clusters or another win system. That is because this determines how matching symbols connect. Wilds, scatters and bonus symbols may follow separate rules.
The mechanics recorded for this title are Bonus Buy. A Bonus Buy label means direct feature access may be offered in eligible versions. Compare its virtual cost with the normal trigger route. Feature labels summarise the catalogue entry. But the game screen determines the exact trigger, duration and payout calculation.
2% RTP, high volatility and a maximum win of 30000x. RTP is calculated across a very large number of rounds and cannot forecast a short demo session. Volatility describes the intended risk pattern: higher settings generally mean outcomes may be less frequent and more uneven.
A maximum win is a ceiling and should never be treated as a likely target.
During testing, watch the stake shown before every round, the balance change after settlement, the symbols or events that trigger features and any multiplier that remains active. Try the base game first instead of immediately selecting an optional shortcut.
If autoplay is available, set a limited number of rounds and stop conditions so the session remains easy to follow.
Availability, RTP and feature settings may differ between operators or countries. Always use the paytable and help menu in the exact version being played. Real-money gambling involves financial risk. Use fixed limits, take breaks and never increase a stake to recover a loss.
Last checked: 2026-09-11
Free demo mode: this game runs with play money only — no real-money wagering and no winnings.
18+ only. Gambling involves risk — play responsibly, set deposit and time limits, and never play with money you cannot afford to lose.
Merlin's Grimoire is an online slot developed by Play'n GO, released in 2022. It is built around bonus_buy. Use the free demo on this page to test the reels, bet steps and feature triggers with play money first.
On paper, Merlin's Grimoire offers a return to player (RTP) of 96.2%, high volatility and a maximum win of 30000x. In practice that means wins land less often. The swings run bigger, so bankroll patience matters here. RTP is a long-run average across millions of spins, not a promise for a single session.
Play Merlin's Grimoire for free here to compare it with other Play'n GO titles, then use the casino list on CasinoCheck to find a site that carries the game for real money. Bonus terms, payout speed and country availability differ between operators, so check the current conditions before you sign up.
Journey to the woods of Avalon in Merlin's Grimoire. Discover the secrets of the ancient book in this magical 5-reel slot featuring expanding symbols and a dynamic way-multiplier system that increases your potential on every spin.
Merlin's Grimoire is an online slot from Play'n GO. Play'n GO develops a broad portfolio of online casino games, including celebrated slots, table games and bingo titles, with mobile-first demos and distinctive recurring series. CasinoCheck runs Merlin's Grimoire as a browser-based demo.
So the controls, presentation and feature flow can be checked without an account or a real-money stake. Trying the free version first shows whether the pace and interface suit you.
2%, high volatility and a stated maximum win of 30000x. The recorded release date is July 7, 2022. Treat the RTP as an average measured over very long play, not as a session forecast.
The volatility rating shows how bumpy the win distribution tends to be, and the max win marks the ceiling of the maths model.
Gameplay tags associated with Merlin's Grimoire include Bonus Buy. The list gives a fast overview of what drives the wins here. The detailed behaviour is described in the rules section, and the in-game help screens of Merlin's Grimoire carry the definitive payout table.
Spend the first rounds simply observing: how quickly Merlin's Grimoire resolves a spin, which symbols pay in the base game and how the display reacts when a feature is triggered. The information panel lists the current bet, the active lines and the payout table, and it is worth revisiting after every setting change.
A longer run gives a much better feel for the rhythm than a handful of spins.
Operators sometimes run different configurations of the same title. So check the RTP, limits and available features inside the casino version you open. What happens in a demo has no bearing on later real-money sessions. Set a spending limit before you start and stop when it is reached.
In the base game, reels 2, 3, and 4 can become 'active', splitting symbols to increase ways to win. Land 3 Scatters to trigger 10 Free Spins. During Free Spins, all 5 reels can become active. One symbol is chosen at random to become the Expanding Symbol.
If enough land to form a win, they expand to cover the entire reel. Scatters act as Wilds and can retrigger the feature. The game uses a dynamic payway system that can reach up to 7,776 ways.
How to play the Merlin's Grimoire demo: open the game, wait for the interface to finish loading and review the paytable or help menu before starting. Choose a comfortable virtual stake with the on-screen controls, then begin a round and let the result complete before changing settings. The demo uses play credits.
But the controls and feature sequence are designed to mirror the corresponding game experience.
For this slot format, set the virtual stake and press spin. Winning combinations are evaluated according to the paytable after the reels or grid settle. Check whether the game uses paylines, ways, clusters or another win system. That is because this determines how matching symbols connect. Wilds, scatters and bonus symbols may follow separate rules.
The mechanics recorded for this title are Bonus Buy. A Bonus Buy label means direct feature access may be offered in eligible versions. Compare its virtual cost with the normal trigger route. Feature labels summarise the catalogue entry. But the game screen determines the exact trigger, duration and payout calculation.
2% RTP, high volatility and a maximum win of 30000x. RTP is calculated across a very large number of rounds and cannot forecast a short demo session. Volatility describes the intended risk pattern: higher settings generally mean outcomes may be less frequent and more uneven.
A maximum win is a ceiling and should never be treated as a likely target.
During testing, watch the stake shown before every round, the balance change after settlement, the symbols or events that trigger features and any multiplier that remains active. Try the base game first instead of immediately selecting an optional shortcut.
If autoplay is available, set a limited number of rounds and stop conditions so the session remains easy to follow.
Availability, RTP and feature settings may differ between operators or countries. Always use the paytable and help menu in the exact version being played. Real-money gambling involves financial risk. Use fixed limits, take breaks and never increase a stake to recover a loss.
Yes. The demo on this page runs Merlin's Grimoire with play money — no deposit, no account and no download. Demo balances have no cash value and cannot be withdrawn.
Merlin's Grimoire was developed by Play'n GO. You can browse the studio's other titles from the provider page linked at the top of this page.
Play'n GO publishes an RTP of 96.2% for Merlin's Grimoire. That figure is a theoretical long-run average; individual sessions can land far above or below it. Some operators run configurable RTP versions, so check the game info screen in the casino you play at.
Merlin's Grimoire is rated high volatility, which means wins land less often. The swings run bigger, so bankroll patience matters here.
The win cap for Merlin's Grimoire is 30000x. Reaching it usually requires the top feature combination, so treat it as a ceiling rather than an expected result.
Merlin's Grimoire uses bonus_buy. The demo above is the quickest way to see how often each feature triggers.
Yes. Merlin's Grimoire runs in the mobile browser on iOS and Android — the demo on this page adapts to portrait screens, and no app install is needed.
All Play'n GO slots and free demos