Book of slots
3 inferno slots · 3 related slots · Book-of mechanic or ‘Book of’ in the name · newest firstBook of slots with an inferno theme: the book as wild and scatter, an expanding symbol in the free spins and a dark backdrop. All themes, studios and parameters together are in the inferno slot overview.
The classic recipe is what you get in Book of the Damned by Rival Gaming, where the reels themselves can grow next to the chosen symbol, and in Book of Lilith by Spinomenal, which lets scatter wins count anywhere on the screen. Book of Inferno by Quickspin belongs to the same series: its free spins also revolve around expanding symbols. All three sit at high volatility and offer an option to buy the free spins.
The classic recipe is easy to spot: an old book that counts as both wild and scatter, a round of free spins triggered by that book, and, just before the round starts, one randomly chosen symbol that expands across the whole reel during the free spins. That expanding symbol is what creates the long quiet stretches and the sudden full screens the series is known for.
On an inferno site the book takes on a darker form: damned souls, a demonic temptress, a book full of evil or a laboratory full of madness. The table shows provider, RTP, volatility, max win and release date for each title.
Every title in the table has a round of free spins, so the list of inferno slots with free spins is the natural next step: there you compare the same round across every theme and see which expanding symbols, multipliers and extra spins other studios use.
Slots3+ 3 related slots in the table
Providers3represented
RTP range94.19–96.11%RTP known for all 3
Largest max win10,000× (2 slots)shared maximum
Newest with own page23 Oct 2025Book of Lilith
Book of slots at a glance
All slots, newest first
The table is deliberately short. It only holds slots that really use the book recipe or belong to a Book of series: 3 inferno slots with a page of their own and 3 related titles, 6 in total.
The classic recipe. The two newest titles with a page of their own use the book as wild and scatter, trigger the free spins with it and pick a symbol beforehand that expands across the reel. In one of them the reels themselves can grow as well; in the other, scatter wins count anywhere on the screen. The third title with a page of its own is older and also builds its free spins around expanding symbols.
Related titles. Two of the three titles without a page follow the same recipe, with extra free spins during the round: a slot about gods at a forge and a volcano, and a vampire slot. The third is the newest in the list and goes another way: the book sits next to a link bonus with fixed jackpots and collection symbols, and the round revolves around symbols that stay in place.
Four of the six titles offer an option to buy the free spins, including all three with a page of their own.
Cards: newest release first, only slots with their own page; the table lists every slot.
Book of Lilith
Spinomenal
RTP 96.01% · Max 10,000×
Book of the Damned
Rival Gaming
RTP 96.11% · Max 10,000×
Book of Inferno
Quickspin
RTP 94.19% · Max 5,798×
| Slot | Provider | RTP | Volatility | Max win | Release |
|---|---|---|---|---|---|
| Book of Lilith | Spinomenal | 96.01% | High | 10,000× | 23 Oct 2025 |
| Book of the Damned | Rival Gaming | 96.11% | High | 10,000× | 10 Oct 2025 |
| Book of Inferno | Quickspin | 94.19% | High | 5,798× | 25 Jan 2023 |
Related slots without their own page
| Slot | Provider | RTP | Volatility | Max win | Release |
|---|---|---|---|---|---|
| Book of Madness Flaming Link | SimplePlay | 96.12% | High | 500× | 9 Feb 2026 |
| Book of Evil | SpinOn | 94% | High | 5,000× | 18 Sep 2024 |
| Forge of the Gods | Iron Dog Studio | 96% | High | 5,500× | 22 May 2023 |
Source: provider data · last checked on 17 Jun 2026 · 3 inferno slots with their own page.
Spread by volatility
Number of slots per level
Book of slots have a reputation as high-volatility slots, and this list confirms it without exception: all 6 titles sit at high volatility.
The recipe explains why. The big payouts come almost entirely in the free spins, when the chosen symbol forms full reels; in the base game things often stay quiet for a long time. If you want a calmer ride, you will not find it in this list, but among lower-volatility slots in other themes.
High
3 slots · Book of Lilith, Book of the Damned, Book of Inferno
Highest RTP among book of slots
Highest RTP first
The values sit close together. The newest title, the one with the link bonus, comes first, followed directly by the two classic book slots with a page of their own and the slot about gods. Two titles sit clearly lower: the older title with a page of its own and the vampire slot.
For four of the six slots the studio supplies several RTP versions, and the two lowest values both belong to titles with several versions. An operator can therefore run a different setting from the one in the game data. Check the game information inside the slot itself before you rely on this column.
Largest max win among book of slots
Largest max win first
The two classic book slots with a page of their own share the highest ceiling. The older title with a page of its own, the slot about gods and the vampire slot reach roughly half of that. The title with the link bonus and fixed jackpots has by far the lowest ceiling in the list.
A max win is known for every title. Always read the ceiling together with the volatility of the same title.
How this list is put together
Criterion, count and source
The list contains inferno slots whose game data name the Book of mechanic, plus titles from a Book of series, recognisable by a name that starts with Book of. The Book label in the theme tags is not enough on its own: many devil slots show a book, a scroll or a pact only as backdrop, without the book being wild and scatter. You will find those titles among the devil and demon slots.
Values come from the game data, checked up to June 17, 2026. The order follows the column you choose. It is not a ranking and not advice.
Criterion
Feature Book-of mechanic in the provider data, or a name that starts with ‘Book of’. The theme tag Book on its own does not count.
Count
3 inferno slots, each with its own page; 3 with RTP, 3 with max win, 3 with volatility. In addition, 3 related slots without their own page are listed in a separate table; they are not counted. All counts and distributions cover the inferno slots.
Order
Table: newest release first. Cards: as stated per section.
Source and date
Provider data, last checked on June 17, 2026. No ranking.
