Book Of Rampage Slot Review
Red sandstone mesas stack against a hazy orange sky, a low sun spilling flare across the top right, cacti standing guard at either end of a wooden rail fence. Book Of Rampage sets its reels in that desert canyon, painted in warm, saturated Western tones, and puts an unusual amount of weight on one symbol: the Book does nearly everything here at once.
The Spinomenal original runs on a 5×3 grid with 10 fixed paylines and an RTP of 93.96%, several points under the going rate for UK slots. The canyon has been revisited since – we covered Book Of Rampage Reloaded in 2026, and Book Of Rampage 2 and the Christmas Edition wear the same boots. This is where the ride started.
The Canyon Reels
All symbols pay left to right from the leftmost reel, and only the highest win on each line is paid. Wins on multiple lines in a single round are added together, and each win is multiplied by the bet per line. It’s a conventional setup, and the game doesn’t dress it up.
The wild is a Book symbol that also works as a scatter, substituting for every symbol in the game. That double duty is the whole engine of the slot. Everything good about it flows from the Book landing in numbers.
Three or more scattered Books pay in addition to any line wins, with the same bet per line as the triggering spin:
- Three scattered Books pay 2x
- Four scattered Books pay 25x
- Five scattered Books pay 250x
The Paytable
Wins are multiplied by bet per line, and the ladder is steep at the top:
- Buffalo – 2: 10, 3: 100, 4: 1,000, 5: 5,000
- Horse – 2: 5, 3: 40, 4: 400, 5: 2,000
- Wolf – 2: 5, 3: 30, 4: 100, 5: 750
- Snake – 2: 5, 3: 30, 4: 100, 5: 750
- A / K – 3: 5, 4: 40, 5: 150
- Q / J / 10 – 3: 5, 4: 25, 5: 100
The Buffalo is the clear premium symbol. Five of them on a line pay 5,000, the highest single-line prize the game offers and its practical ceiling.
On the practical side, the bet is set per line with the plus and minus buttons. Auto play opens a configuration screen where the number of spins is chosen, and it runs until the count finishes or the pause button stops it.
Turbo Mode shortens each round to the shortest possible game cycle. On desktop it’s toggled by the rabbit button in the bottom left corner; on mobile it sits in the settings menu, and it can also be switched on from the auto play configuration screen.
Free Spins & the Expanding Symbol
Three or more scattered Books trigger 10 free spins. Before the round begins, a wheel of all the game’s symbols – everything except the Book itself – is spun to select one expanding symbol for the whole round.
It’s a proper wheel of fortune moment, and it means two identical triggers can play out completely differently. What the wheel settles before a single spin resolves shapes everything that follows.
During the free spins, after each spin’s result is determined, the expanding symbol grows to cover its reel positions and form new paylines on top of the existing ones. There’s a sensible restriction built in: the symbol only expands when the expansion will produce a win.
When it does pay, it pays generously by the standards of line slots. The expanding symbol awards its paytable value across all active lines, regardless of whether the winning symbols sit on consecutive reels. Expanded wins count separately from the original spin result.
While the round runs, the stake is locked: the bet per line stays exactly as it was on the triggering spin, and the plus and minus buttons are disabled until the free spins finish. The help and settings buttons go quiet during any spin too.
A full screen of Buffalos across ten lines is the dream scenario, and the maths allows it. The round works like this, step by step:
- Land three or more scattered Books anywhere on the reels
- Collect the scatter prize, paid on top of any line wins
- Spin the wheel to choose the round’s expanding symbol
- Play 10 free spins, with the expander paying separately after each result
- Land three or more Books again for an extra 10 spins
The retrigger is worth having. A round that’s already paying can extend itself without warning, and each extra block of 10 spins carries the same expanding symbol the wheel chose at the start.
Buy Feature
For players who’d rather not wait for the Books to align, a Buy Feature button skips straight to the free spins round. Clicking it opens a window where the bet for the purchased round can be adjusted.
The buy price scales with the bet chosen, so check the window before committing. Pay the price and the round begins immediately, wheel and all. The purchase buys the same round an organic trigger would: 10 spins, one wheel-picked expanding symbol, and retrigger potential on top.
Our Honest Verdict
Overall Rating: 6.3/10
Most of a session here is quiet canyon – short spins, small line wins, waiting for the Book to arrive. When three of them land at once, everything happens in the space of a few seconds. That rhythm, long dusk then sudden noise, is the whole appeal.
The wheel pick is the best thing in the build. It settles the expanding symbol before a free spin resolves, so two identical triggers play out nothing alike, and the non-consecutive pay rule lets a full reel of Buffalos collect on all ten lines. The weakness is just as clear: one round, one symbol doing the work, and nothing behind it. Draw a royal at the wheel and the feature is small, with no second string anywhere. The return also sits several points below the going rate for UK slots – the Christmas edition that later dressed this canyon in garland runs warmer.
For players who enjoy the book-of loop in its plainest Western cut, this is a sound starting point, and the later Rampages build on exactly this frame. Anyone wanting a bigger menu of features or a kinder return will find both elsewhere in the canyon. The sunset, at least, is free.
Book Of Rampage FAQs
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How do you trigger the free spins in Book Of Rampage?
Land three or more scattered Book symbols anywhere on the reels. The Books pay 2x for three, 25x for four and 250x for five, on top of any line wins, and award 10 free spins. -
What does the expanding symbol do in the free spins?
Before the round starts, a wheel selects one expanding symbol. After each free spin’s result is determined, that symbol expands to form new paylines if the expansion creates a win, paying across all active lines whether or not the symbols are consecutive. Any expanded win is paid on top of the spin’s own result. -
Can the free spins retrigger?
Yes. Landing three or more scattered Book symbols during the round awards an additional 10 free spins, with the bet per line unchanged from the triggering spin. -
Can you buy the bonus on Book Of Rampage?
Yes. The Buy Feature purchases the free spins round immediately. The buy price scales with the bet you set in the purchase window, and the round plays out exactly as an organic trigger would. -
What is the RTP of Book Of Rampage?
The RTP is 93.96%, which is several points below the typical rate for online slots. -
How many paylines does Book Of Rampage have?
The game runs on 10 fixed paylines, with all symbols paying left to right from the leftmost reel. -
What is the grid size of Book Of Rampage?
It’s a 5×3 grid – five reels and three rows – with the expanding symbol able to fill reel positions during free spins. -
Who makes Book Of Rampage?
Spinomenal. The studio has since revisited the rampage canyon in Book Of Rampage 2, Book Of Rampage Reloaded and a Christmas edition.
