Book of Inferno

Book of Inferno Review

We have seen many Book slots, as new ones constantly appear. Some stand out more than others, and Book of Inferno should impress most Book slot enthusiasts. You're taken to hell in a visually appealing experience, with great attention to detail. The book symbol itself is particularly impressive.

Instead of Dante's guide Virgil, you get demons of different kinds. They mainly appear on larger wins, and a large pentagram reveals the Book in the base game. This gives you marked symbols that can expand ‘book of’ style, in addition to the chosen symbol in the bonus round. The max win of 5,846x your stake is slightly higher than usual, and Book of Inferno is worth a look.

Book of Inferno Slot Features

The premium symbols pay between 75 and 500 x your stake for 5 of a kind, and the Book Wild substitutes for pay symbols. The Book pays the same as the top symbol should you land a pure wild win, and it also serves as the scatter symbol, like in most ‘book slots’.

All symbols are shown above the grid, and random symbols are marked at random times in all stages of the game. The marked symbol becomes a special expanding symbol, and landing enough instances awards a full payline win. Landing the book with marked symbols gives you an extra marked symbol (the next tier above), which can lead to more expanding symbol wins.

The Bonus Round triggers when you land 3, 4, or 5 book scatters, giving you 10, 15, or 20 free spins. You also win 2x, 20x, or 200x your stake from the triggering scatters, and you get the same number of extra spins during the feature if you land 3, 4, or 5 scatters. A symbol is chosen up front to become the special expanding symbol, and the marked symbol feature can also trigger in the bonus round.

Finally, players in eligible regions can use the Bonus Buy option. It costs 125x your stake, guaranteeing 3+ scatters on the next spin. The Bonus Buy RTP increases to 96.65 %, at least on the highest tier.

The 200 Spins Book of Inferno Slot Experience

You see the marked symbol feature in the base game, before we buy the bonus round. It triggers around 1:30 into the 4:17-minute video, and we got the minimum of 10 free spins. The number 10 was chosen, and you can see how we did by watching the video.

Review Summary

To stand out in the crowded ‘Book slot’ genre, you need great visuals or interesting features. Book of Inferno has both, with detail that makes you want to read the diabolical book. The pentagram the book appears from is impressive, showing you're in a nasty underworld.

The Marked Symbol feature has been seen before, but it keeps the base game interesting. The 5,846x potential is slightly above the "standard" 5,000x, but not significantly. Overall, Book of Inferno is a solid game, and the visuals will attract many ‘book slot’ fans.