Book of Runes
91.44
Visitors Rating
Times Played 0 times
Rated 93.29/100%
Immerion Casino
Welcome bonus
500%/$1,000 + 250 Free Spins
x40 wagering (Bonus & Deposit)
Specialist Content Contributor
15.12.2025
Updated
Book of Runes Review
Book of Runes by Mancala Gaming is a high-volatility video slot that applies the classical “Book of…” framework to a mystical, alchemy-themed setting. Featuring a 5×3 reel layout with 10 fixed paylines, the game focuses on symbol expansion mechanics during Free Spins and introduces a Buy Feature for direct bonus access. Its core structure revolves around triggering a bonus round in which one symbol becomes randomly chosen to expand across reels, forming winning combinations even on non-adjacent positions. With a maximum win potential of 1230x, the game skews toward moderate payout ceilings, counterbalanced by concentrated variance and an RTP of 95%. The design prioritizes feature timing and symbol behavior over reel innovation, presenting a mathematically compact experience aimed at players who favor strategic bonus hunting.
Slot Information
Return to Player (RTP) Return to Player (RTP) The Return to Player is a statistic that aims to show the player's edge over the casino – the higher this number is the better! We review all slots based on this RTP value so click on the percentage on the right to find our more slots with a similar RTP!
95%
Volatility Volatility Volatility or Variance is meant to describe the winning potential of a slot game: a high volatility will have you win big but no so often, while a low volatility will let you win frequently, but less.
High
Progressive Slot Progressive Slot A progressive slot is a slot that keep on growing its total possible winning pool; usually linked by a network of slots. It is also known as a jackpot.
Slot type Slot type Slots can be categorized as classic, 3D, video slots, etc. Click on the type of slot on the right to see similar types of slots!
Video Slot
Rows Rows Part of the design of the slot, the rows are the horizontal lines that trigger special features when certain paying symbols fall in place.
3
Reels Reels Reels are the vertical lines that are build in the slots architecture; together with the rows they help trigger special winning combinations.
5
Paylines Paylines Paylines, or betting lines, are the pre-determined links of symbols across the rows and reels of a slot. A slot can have anywhere from just 1 payline or up to thousands paylines!
10
Slot Layout Slot Layout The layout of the slot is the way the slot is built, based on the number of rows, reels and paylines.
5×3
Slot Features
Minimum Bet Minimum Bet The minimum accepted amount that will allow you to spin the reels of this slot game.
€10
Maximum Bet Maximum Bet The maximum accepted amount that will allow you to spin the reels of this slot game.
€900
Maximum Win Maximum Win The total maximum amount that you could win triggering the biggest winning combo.
€4,917,600
Available Available The operating systems this slot game is optimized for – both PC and Mobile.
Android, iOS, Windows
Auto Play Auto Play Auto Play is a built-in function on the slot interface that enables automatic spinning of the slot without the player having to press the Spin button on every spin. Usually, the function can be preset to auto execute a certain number of spins like 20,50, 100, or more. Players can typically define their bet amount and set loss limits before starting Auto Play.
Bonus Buy Bonus Buy This feature enables players to instantly pay for and access the special bonus feature of the slot instead of waiting for a lucky spin in a long spin sequence. This feature has proven to be quite popular among slot players.
Book of Book of The Book of feature is a popular slot mechanic where a special symbol acts as both a scatter and a wild. When three or more Book symbols appear on the reels, they trigger a bonus round with free spins and an expanding symbol feature.
Free Spins Free Spins Free spins are the most popular feature in online slots today. Usually they are not just a free spinning on the usual gameplay of the slot but are bundled into separate and more exciting feature with special effects and much greater winning potential.
Pros
- Classic “Book of…” structure with expanding symbols
- Thematic cohesion with detailed alchemy-inspired visuals
- Wild also serves as Scatter, simplifying trigger conditions
- HTML5-based for seamless mobile and browser performance
Cons
- Max win of 1230x limits long-term high-stakes potential
- No multiplier mechanics or dynamic reel modifications
- High minimum bet entry may deter casual players
Rate this game
No star
Visitors Rating
0%
(0 votes)
Gold Star
0 votes
Silver star
0 votes
Bronze Star
0 votes
Aluminium star
0 votes
How would you rate this game?
Click on the star below to submit your rating
Book of Runes Slot Overview
Book of Runes unfolds across a 5×3 reel structure with 10 fixed paylines and a mathematical profile defined by high volatility and an RTP of 95%. Released in May 2024, this title adheres closely to the core principles of the “Book of…” genre but reinterprets them through the lens of magical runes and alchemical rituals. The maximum payout of 1230x the stake defines it as a lower-ceiling entry in the genre, especially when compared to other high-volatility peers, suggesting a more controlled risk-to-reward ratio.
Visually, the slot presents a dark, arcane aesthetic centered around a magical cave or ritual chamber. Symbols consist of runes, enchanted artifacts, and stylized character icons rendered with clarity and depth. The Book symbol functions as both Wild and Scatter, triggering the bonus round and substituting for all others. During Free Spins, one symbol is randomly chosen to expand and cover full reels when forming part of a win, a mechanic that remains central to the gameplay rhythm. The Buy Feature serves players who prefer immediate entry into the most lucrative part of the slot’s structure, bypassing base game variance.
Math Profile Breakdown (RTP, Volatility, Betting Range)
RTP: 95%
Volatility: High
Bet Range: 10–900
Max Exposure: 1230×
Book of Runes positions itself as a high-volatility game with a restrained top-end payout. The 95% RTP signifies a slightly less favorable return over time, but this is balanced by the controlled payout ceiling of 1230x, which prevents the bonus round from becoming overly imbalanced. The bet range is wide, accommodating both conservative and aggressive bankroll strategies. From a mathematical standpoint, the game is built around feature timing rather than explosive payout scaling, making it more suitable for players interested in bonus round frequency and controlled risk rather than jackpot-level outcomes.
Book of Runes Base Game Analysis
The base game operates on a fixed 5×3 matrix with 10 paylines, employing a straightforward win system that pays left to right. Symbol distribution includes a hierarchy of rune carvings, ancient books, and magical objects. Wins in this phase are typically modest, as most of the volatility is locked behind the bonus system. The dual-purpose Book symbol is the only trigger for elevated variance during regular spins, acting both as a Wild and the trigger for the bonus round when three or more appear anywhere on the reels.
In terms of behavior, the base game is functionally minimalistic, reinforcing its purpose as a pathway to the feature round. There is no cascading mechanic or gamble feature, meaning the standard spins rely entirely on symbol alignment or bonus triggering to generate significant returns. Players may experience extended dry sequences due to the high variance, but the potential payoff during Free Spins with expanding symbols provides the key risk-reward cycle that drives engagement.
Mechanics That Drive Catch N Cash
Book of Runes utilizes several well-integrated mechanics to structure its core loop:
Classic “Book of…” expanding symbol feature
Buy Bonus for instant feature entry
Dual Wild/Scatter Book symbol
10 Free Spins with retrigger potential
5×3 layout with 10 paylines
High-volatility balance with static symbol payout potential
This framework supports a consistent feature-hunting strategy with clearly defined variance boundaries.
Book of Runes Slot Pay Symbols & Their Values
High-value
Sorceress character
Rune-engraved golden artifact
Medium-value
Purple flask
Magic ring
Alchemical compass
Low-value
A, K, Q, J, 10 in stylized font
Special Symbols
Book Symbol: Functions as both Wild (substituting for all regular symbols) and Scatter (3+ triggers Free Spins).
Expanding Symbol: Randomly selected at the start of Free Spins; expands to cover full reels when it forms part of a win, paying on any position.
5 = 5.000
4 = 2.500
3 = 500
2 = 100
5 = 2.500
4 = 1.000
3 = 250
2 = 50
5 = 1.000
4 = 500
3 = 200
2 = 30
5 = 750
4 = 400
3 = 200
2 = 20
5 = 500
4 = 250
3 = 150
5 = 400
4 = 200
3 = 100
5 = 200
4 = 100
3 = 50
5 = 100
4 = 50
3 = 30
5 = 50
4 = 30
3 = 20
Devs Behind the Math in Book of Runes
Mancala Gaming consistently delivers slots with compact, feature-focused mechanics and thematic visual cohesion. Their portfolio often includes titles with high volatility and straightforward bonus triggers, aiming for a balanced blend between accessibility and risk. Book of Runes is aligned with this philosophy: its mathematics emphasize timely entry into a deterministic bonus round rather than relying on deep reel variation or random modifiers. The inclusion of a Buy Feature further supports the studio’s tendency to provide direct access to core mechanics, a choice that appeals to players preferring structure over unpredictability.
Book of Runes Session Simulation Summary
Over a total of 200 manually recorded spins on Book of Runes, played consistently at a 100-credit stake per spin, the total amount wagered was 20,000 credits. The base game delivered 37 individual winning spins, the majority yielding between 30 and 150 credits. A notable high occurred on spin 94, with a 5-of-a-kind combination of the Sorceress symbol paying out 600 credits. However, base game performance was mostly low-impact, with cumulative base returns totaling 2,710 credits. A dry sequence from spin 121 to 158 produced no wins at all, underscoring the high-volatility structure. By the 160th spin, the running deficit had reached -15,790 credits—until feature activations began to recalibrate outcomes.
Three Free Spins rounds were recorded during the session—triggered on spins 61, 164, and 198. The first feature produced 10 Free Spins with the expanding symbol assigned to the Magic Ring (medium-tier), and the total return amounted to 2,300 credits. The second bonus was far more impactful: with the Sorceress chosen as the expanding symbol, two full-screen expansions were recorded, paying 6,000 and 4,800 credits respectively—leading to a total payout of 11,460 credits from that round alone. The final feature, activated near session-end, delivered 3,200 credits with the Golden Artifact as the expander. In total, Free Spins rounds contributed 16,960 credits. Factoring all results, the session concluded with a net outcome of -330 credits, recovering nearly the entire investment via late-phase feature performance.
Book of Runes Innovation Score – Prequel, Sequel, or Reskin Check
Book of Runes follows the widely recognized “Book of…” template but does so with a unique presentation and original symbol design. It is not a sequel or rebranded iteration of a prior Mancala Gaming title. Unlike slots that repurpose symbol libraries or bonus structures with minimal variation, this title introduces fresh iconography, a distinct visual theme, and an alchemist’s lab setting that diverges from the usual Egyptian or tomb-based locales seen in similar formats.
A review of Mancala’s broader catalog shows no prior title with this specific theme-mechanics combination, nor any reuse of its rune-based visual assets. While the gameplay model is familiar, the execution and styling suggest that Book of Runes is a standalone creation, developed as an original thematic entry rather than a derivative work.
The Mental Mechanics Behind Book of Runes: How It Captures Attention
Book of Runes establishes a mental gameplay loop around anticipation, predictability, and controlled variance. The use of a single, clearly defined bonus round that revolves around expanding symbols creates a focused objective for players, aligning short-term expectations with long-term feature hunting.
| Mechanic | Description |
|---|---|
| Expanding Symbols | Selected during Free Spins; expand vertically and pay on any position |
| Scatter Symbols | The Book triggers Free Spins when 3+ appear |
| Risk/Gamble Feature | Not present; the slot does not include a double-or-nothing mechanic |
| Wild Symbols | The Book substitutes for any regular symbol |
| Stacked Symbols | Not inherently present; expansions mimic stacking but only during bonuses |
FAQs About Book of Runes Slot
The maximum win is 1230x your bet, and while it is possible, it typically requires high-value symbol expansions during Free Spins.
Yes, the game offers 10 Free Spins triggered by 3 or more Book symbols, with retrigger potential and expanding symbols.
The RTP is set at 95%.
Yes, it is fully compatible with mobile devices via HTML5 technology.
Yes, many platforms offer a demo version for practice play without financial risk.
No, Book of Runes is a standalone game with unique visuals and design, though it shares genre mechanics.
Yes, the slot is classified as high volatility, meaning payouts are less frequent but can be significant.
Content Writer
A detail-oriented content strategist focused on the online slot industry, Mladen specializes in scientific-style slot reviews, session simulations, and in-depth mechanical breakdowns. With a strong editorial framework that prioritizes originality, structure, and compliance with evolving content policies, they consistently deliver high-level insights across new and upcoming titles. Their expertise spans statistical interpretation, visual analysis, and gameplay logic, with a commitment to eliminating boilerplate phrasing and ensuring full alignment with provider-specific mechanics and themes.
Table of Contents