Book of Madness

Book of Madness Comes to BulBul's Lineup

Book of Madness slot also carries a BulBul release alongside its Gamomat original, matching the headline RTP figure while arriving through a separate studio's distribution. It's another case of the book genre's blueprint being shared and repackaged, this time keeping the horror theming fully intact.

Theme & Gameplay Feel

This build sticks with the unsettling, asylum-style atmosphere that defines the Book of Madness name — dim, dread-soaked visuals standing in for the genre's usual sun-drenched desert scenes. Underneath, the mechanics follow the standard book-slot template: card-rank symbols anchor the paytable's lower tier, horror-themed icons take the premium spots, and a special book symbol serves as both scatter and wild, unlocking the free spins round where an expanding symbol drives the biggest wins.

What the RTP Means for You

Book of Madness slot under BulBul returns 96.15% to players, identical to the figure seen on the original release. That consistency is reassuring for players who don't want to hunt down a specific version to get the fairest return — this build delivers the same number regardless.

Volatility Explained

Rated medium volatility, this version should play out with the same approachable rhythm as its sibling release. Expect a fairly steady flow of smaller wins in the base game punctuated by the free spins round's bigger moments, without the harsher swings that define the genre's high-variance entries.

Max Win Potential

No max win figure has been published for this release, so it's best not to assume parity with other titles in the wider book genre. The free spins round, powered by the game's expanding symbol, remains the intended path to any serious payout.

Verdict

Book of Madness slot's BulBul release is essentially a parallel version of the Gamomat original, sharing the same fair 96.15% RTP and manageable medium volatility while carrying the same horror-tinged atmosphere throughout. Since the numbers line up so closely, the real deciding factor is simply which build happens to be listed where you're browsing, rather than any meaningful gap in value between the two. If you've already tried one version and enjoyed the mood, this is a low-risk way to sample the other — take the free demo for a spin at johnessyslots and judge for yourself.