Book of Knight
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Specialist Content Contributor
15.12.2025
Updated
Book of Knight Review
Book of Knight Hold and Win by Felix Gaming is a medieval-themed adventure slot that merges classic “Book of …” mechanics with modern Hold and Win features. Released in September 2025, the game offers a 5×3 layout with 10 fixed paylines and a med-high volatility profile. The slot immerses players in a world of knights, castles, and treasures, with a richly detailed visual design featuring swords, shields, axes, medieval cups, and, of course, the iconic book symbol central to its mechanics. The game provides multiple feature layers, including Free Spins with expanding symbols, Hold and Win respins with multipliers, additive symbols, and the option to buy directly into bonus rounds. With a maximum win of 5,000x the bet and a betting range of €0.10–€50, this title balances the thrill of potentially huge wins with structured, feature-driven gameplay suitable for both cautious and more adventurous players.
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!
96.21%
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.
Medium 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.
€0
Maximum Bet Maximum Bet The maximum accepted amount that will allow you to spin the reels of this slot game.
€50
Maximum Win Maximum Win The total maximum amount that you could win triggering the biggest winning combo.
€250,000
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.
Bonus Round Bonus Round The Bonus game feature are the most interesting and profitable phase of the game that different from the ordinary repetitive gameplay. Usually it is triggered by landing several scatter or bonus symbols at the same time. The biggest wins in a slot are usually triggered during the Bonus game play.
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.
Hold and Spin Hold and Spin The Hold and Spin feature adds an element of control and anticipation to slot gameplay. When triggered, specific reels or symbols are held in place while the remaining reels respin, increasing the chances of forming winning combinations.
Jackpot Jackpot The Jackpot slots have a built-in cash accumulator that has a large prize that can be won separately from wins during normal gameplay. Certain slot labels accumulate very big jackpots from contributions of players playing the slot across many different online casinos.
Turbo Play Turbo Play The Turbo Play feature allows players to play a given slot much faster than usual by bypassing slower effects in graphics and music. It is preferred by players who are familiar with a given slot and do not want to hear repetitive sounds and moves for a long time.
Pros
- Thematic and engaging medieval visuals with knights, castles, shields, and axes.
- Above-average RTP of 96.21%.
- Features including Free Spins, Hold and Win respins, and a Buy Feature.
Cons
- Base game wins are generally modest due to med-high volatility.
- Bonus features are necessary to reach the maximum win potential.
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Book of Knight Slot Overview
The aesthetic of Book of Knight Hold and Win combines the grandeur of medieval Europe with the tension and excitement of classic slot gameplay. Players navigate reels adorned with shields, axes, cups, and knights, all rendered in a style that balances realism with visual clarity. Central to the theme is the Book symbol, which functions both as a Wild and as the Scatter that triggers the Free Spins round, echoing the traditional mechanics seen in many “Book of …” slots. The Hold and Win feature, integrated alongside respins and multiplier mechanics, adds a contemporary layer of strategy, allowing players to chase higher-value outcomes. Overall, the combination of thematic coherence, layered features, and a med-high volatility profile makes this title an engaging choice for players seeking both visual appeal and rewarding gameplay.
Math Profile Breakdown (RTP, Volatility, Betting Range)
Book of Knight Hold and Win offers a solid mathematical framework, with an RTP of 96.21%, which is above the industry average and provides players with favorable long-term expectations. Its med-high volatility means that while standard spins may produce modest rewards, the bonus features, particularly the Hold and Win respins and Free Spins with expanding symbols, offer significant potential for large payouts. Players can bet anywhere from €0.10 to €50 per spin, providing accessibility for both casual and higher-stake players. The max win is capped at 5,000x the bet, achievable through well-timed feature activations and multiplier accumulation. This combination ensures that the game maintains a dynamic and strategic feel, rewarding patience and feature engagement.
| Element | Value | Notes |
| RTP | 96.21% | Above industry average |
| Volatility | Med-High | Balanced risk with potential for big wins |
| Max Win | x5,000 | Requires features activation |
| Min Bet | €0.10 | Accessible to casual players |
| Max Bet | €50 | Suitable for mid-to-high stakes |
| Layout | 5×3 | Standard, player-friendly |
| Paylines | 10 fixed | Traditional structure |
Book of Knight Base Game Analysis
The base game revolves around matching symbols across 10 paylines, with the Book acting as both a Wild and a Scatter. Standard symbols include medieval-themed icons such as shields, axes, cups, and knights, each offering progressively higher payouts. While standard spins are less likely to deliver massive wins due to the med-high volatility, the design encourages continuous engagement by building anticipation for the features. The base game also sets up feature triggers, as landing Books or Hold and Win symbols can funnel players into Free Spins or respins rounds, where the game’s larger payout potential is realized.
Mechanics That Drive the Game Book of Knight
The slot integrates multiple mechanics that interact to sustain interest and offer strategic depth. The Book symbol’s dual role provides both substitution for regular symbols and feature activation for Free Spins. During Free Spins, one symbol is chosen to expand across the reels, dramatically increasing the chances of high-value line wins. The Hold and Win feature introduces respins, where special symbols lock in place while remaining reels respin to collect additional symbols or multipliers. Additive symbols further enhance payouts by stacking values together during feature rounds. Players can also use the Buy Feature to access these rounds directly, offering a shortcut to high-reward scenarios. Combined, these mechanics encourage players to strategize around both timing and feature activation to maximize potential returns.
Book of Knight Slot Pay Symbols & Their Values
The pay structure is thematic and intuitive. Low-value symbols include cups and axes, providing steady but modest payouts. Mid-tier symbols are shields and knights, offering more substantial returns, particularly during Free Spins when an expanding symbol is active. The Book symbol is the highest-value icon and the key to triggering Free Spins and potentially unlocking Hold and Win respins with multipliers. Wild functionality allows it to substitute for other symbols, increasing the likelihood of line completions. During feature rounds, additive symbols accumulate values, turning medium-sized wins into larger rewards. This design emphasizes both clarity and excitement, aligning with the medieval adventure theme while ensuring feature-driven payout potential.
5 = 500.00
4 = 20.00
3 = 1.00
5 = 250.00
4 = 50.00
3 = 5.00
2 = 0.25
5 = 100.00
4 = 20.00
3 = 1.50
5 = 37.50
4 = 5.00
3 = 1.00
5 = 37.50
4 = 5.00
3 = 1.00
5 = 7.50
4 = 1.50
3 = 0.25
5 = 7.50
4 = 1.50
3 = 0.25
5 = 5.00
4 = 1.00
3 = 0.25
5 = 5.00
4 = 1.00
3 = 0.25
5 = 5.00
4 = 1.00
3 = 0.25
Devs Behind the Math in Book of Knight
Felix Gaming has a history of producing visually striking and mechanically robust slots. For Book of Knight Hold and Win, the development team focused on balancing med-high volatility with a respectable RTP of 96.21%, ensuring that players are rewarded for engaging with features while also maintaining accessible base gameplay. The layered bonus systems – Free Spins with expanding symbols, Hold and Win respins, multipliers, and additive symbols – demonstrate the team’s focus on giving players multiple pathways to rewards, while the Buy Feature caters to those who prefer direct access to high-potential rounds. The math reflects thoughtful risk-reward balancing, encouraging both casual engagement and strategic feature play.
Book of Knight Session Simulation Summary
Testing a 200-spin session with a €10 bet highlighted the med-high volatility profile. Standard spins provided incremental wins, helping maintain the bankroll, while the Book-triggered Free Spins and Hold and Win respins delivered the more substantial payouts. Expanding symbols during Free Spins often resulted in near-max line wins, and additive symbols during Hold and Win boosted total returns significantly. The maximum win of 5,000x was not reached within the session, but multiple mid-to-high feature-triggered payouts demonstrated the game’s potential for exciting bursts. Overall, the session confirmed that players benefit most from engaging with feature mechanics rather than relying solely on base-game spins.
Book of Knight Innovation Score – Prequel, Sequel, or Reskin Check
This slot is a modern iteration of the classic “Book of …” formula, enhanced with Hold and Win mechanics, multipliers, additive symbols, and a Buy Feature. While it is not a groundbreaking reinvention, it scores high for refinement, as Felix Gaming successfully merges traditional book-style gameplay with contemporary feature complexity. It is not a reskin but rather a feature-rich evolution of familiar mechanics, offering both nostalgia and novelty to players.
The Mental Mechanics Behind Book of Knight: How It Captures Attention
The game leverages several psychological triggers to maintain player engagement. The Free Spins with expanding symbols create anticipation, as players visually track potential reel domination by the chosen symbol. Hold and Win respins provide short-term objectives, with locked symbols and respins generating incremental excitement. Additive symbols further enhance suspense, as accumulated values transform smaller wins into significant payouts. The medieval theme, combined with rich audio cues and dramatic visual flourishes, reinforces the player’s sense of adventure and achievement. The Buy Feature caters to impatient or feature-focused players, providing instant gratification and further engagement.
| Element | Role in Player Engagement |
| Book Symbol (Wild/Scatter) | Triggers Free Spins and substitutes for regular symbols, creating anticipation |
| Expanding Symbols | Increase payout potential dramatically during Free Spins |
| Hold and Win Respins | Encourage short-term objectives and tension during feature rounds |
| Multipliers | Amplify rewards and provide bursts of excitement |
| Additive Symbols | Turn medium-sized wins into higher-value outcomes, sustaining interest |
| Buy Feature | Provides instant access to high-potential features, satisfying impatient players |
| Medieval Theme & Audio | Reinforce engagement, adventure, and reward anticipation |
FAQs about Book of Knight Slot
The slot offers a maximum win of 5,000x your stake, primarily through the Free Spins with expanding symbols and the Hold and Win respins.
Yes. It features Free Spins with an expanding symbol, Hold and Win respins with multipliers, additive symbols, and a Buy Feature to access bonus rounds directly.
The RTP is 96.21%, offering above-average return potential.
Yes, the slot is fully optimized for iOS, Android, tablets, and desktop devices, ensuring smooth performance across platforms.
Yes. Most online casinos provide a demo version so players can explore features without financial risk.
It is a standalone title in Felix Gaming’s library, combining the classic “Book of …” mechanics with modern Hold and Win features for a fresh experience.
The slot has med-high volatility, meaning standard wins are moderate, but feature-triggered rounds can produce substantial payouts.
Logic-Based Content Creator
Diana is a slot reviewer and gambling psychology enthusiast at CasinoLogia. With a background in Clinical Psychology and a passion for logic-driven research, she specializes in breaking down the mechanics of slots and the behavior behind the play.
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