Storm Gaming · medium volatility · free demo

Book of Oaths

Book of Oaths is a five-reel video slot from UK studio Storm Gaming, built around the familiar "Book of" adventure template. It runs on a 5x3 grid with 10 paylines and pairs a fantasy theme with a scatter-triggered bonus that fans of the genre will recognize.

Book of Oaths facts

Volatility
Medium
Reels
5
Paylines
Fixed
Bet range
0.1 – 100
Game type
Slots
Provider
Storm Gaming
Categories Egyptian

Facts from the SlotsLaunch games feed, last synced 6 Sep 2026. The rules inside the game take precedence.

Free Demo

Book of Oaths

by Storm Gaming

18+ | T&Cs Apply | Gamble Responsibly

Last updated: Sep 2, 2026
Provider: Storm Gaming Volatility: Medium
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Slot Review

Book of Oaths Overview

Book of Oaths is a medium volatility slot by Storm Gaming. This game plays across 5 reels. Play Book of Oaths for free on Slottomat, compare the core stats quickly, and browse trusted slot offers available in your market.

Book of Oaths: Storm Gaming's Adventure-Book Slot

Reels, Paylines and Betting Range

The layout is a classic 5x3 set of reels with 10 paylines that pay left to right from the leftmost reel. Stakes run from 0.10 per spin, which gives the game a wide enough span to cover casual sessions and higher-stake play alike. The bet you set covers all 10 lines on every spin, keeping the maths straightforward and the interface uncluttered.

The Book Symbol and the Bonus Trigger

As with most titles in this category, the book is the key symbol and acts as the scatter that triggers the bonus. Landing enough books on the reels at once opens the bonus spins round, which is where the game's headline feature comes into play. For the exact value of each symbol and how wins are formed, open the in-game paytable from the demo.

Bonus Spins: Locked and Changing Symbols

The book scatters trigger the bonus spins feature. According to Storm Gaming, the round is built around locked and changing symbols that build towards an exciting final spin, rather than the single random expanding symbol seen in many other "Book of" titles. A Feature Buy option is also available in permitted jurisdictions, letting you purchase entry to the bonus directly. Exact spin counts, the way symbols lock and change, and any retrigger rules are shown in the in-game paytable, which you can open from the demo.

RTP and Volatility

Book of Oaths runs at a 96% RTP, placing it right on the widely cited industry average. That is a fair, middle-of-the-road return rather than a standout in either direction. Volatility sits in the medium band, meaning you can expect a mix of modest base-game wins punctuated by the more impactful bonus spins round. RTP is a long-run average, so individual sessions will swing above and below it; the bonus feature is where most of the win potential is concentrated. If you play at a live casino, confirm the configured RTP in the in-game info panel, since operators can sometimes run alternative settings.

Playing on Mobile

The reels and controls are sized for readable portrait play, the touch controls mirror the desktop buttons, and the bonus spins feature behaves identically across devices. Nothing is stripped out for smaller screens.

Similar Storm Gaming Slots to Try

Storm Gaming's catalog is smaller than the big studios' but spans a range of themes and mechanics. If you enjoy Book of Oaths, these same-studio titles are worth a demo spin:

  • Magic Merlin Megaways — a fantasy-themed Megaways title with shifting ways to win.
  • Arto & The 7 Deadly Spins Megaways — the studio's higher-variance Megaways entry.
  • Bar-X Triple Play Megaways — a classic Bar-X feel updated with the Megaways engine.

You can browse the full studio range on the Storm Gaming provider page.

Try the Free Demo First

Book of Oaths is a clean, recognizable take on the book-adventure formula: a 5x3 grid, 10 paylines, a scatter book, and a bonus spins round driven by locked and changing symbols that build to a final spin. The 96% RTP and medium volatility make it an accessible option for fans of the genre. The best way to judge whether the variance and feature pacing suit you is to load the free demo above and play a handful of spins on credits before committing anywhere.

For responsible play support, our Responsible Gaming guide offers free and independent guidance.

FAQ

Common Questions About Book of Oaths

Direct answers to the questions players usually ask before trying a slot.

The game loads instantly in any modern browser using play credits only. Just click the play button at the top of this page and start spinning immediately.

The maximum win multiplier for Book of Oaths is not publicly disclosed in available documentation and should be confirmed in the in-game paytable, accessible via the information button in the demo. Book-style slots typically concentrate their highest payout potential within the free spins bonus round, where an expanding special symbol mechanic can produce significantly larger wins than the base game. Load the free demo on Slottomat to explore the full pay structure and paytable details directly.
Yes. Book of Oaths runs in any modern browser and runs directly in any mobile browser on iOS and Android devices, including tablets, with no app download required. The mobile version delivers the same maths and the complete feature set of the desktop version, so nothing is removed or simplified for smaller screens. Touch controls are optimised for mobile use, and both portrait and landscape orientations are supported cleanly.
Book of Oaths plays with medium volatility - a mix of smaller, more frequent base-game wins and less frequent but more impactful bonus events. Expect stretches between significant payouts, as the free spins round is where most of the win potential is concentrated. Running a few dozen demo spins on Slottomat is a sensible way to get a feel for the variance before drawing any session conclusions.
Free spins in Book of Oaths are triggered by landing the scatter symbols on the reels. According to the studio, the bonus uses locked and changing symbols that build toward an exciting final spin, and a Feature Buy option is also available where permitted. Exact spin counts, retrigger conditions, and symbol rules are shown in the in-game paytable, which you can open from the free demo on Slottomat. Note: this is not the classic single random expanding-symbol mechanic used by some other 'Book of' titles.
Book of Oaths takes a more structured, template-driven approach than several other Storm Gaming titles. Where games like Arto & The 7 Deadly Spins Megaways use the Megaways engine for thousands of ways to win per spin, Book of Oaths sticks to a clean 5x3, 20-payline format that is immediately familiar. All Storm Gaming titles are available as free demos on Slottomat, making the full range easy to compare side by side.