Book of Shadows is a Nolimit City video slot released on 20 August 2020 with an occult horror theme and an adjustable reel area. The game starts with five reels and three rows, while Shadow Rows can extend the layout to four or five rows and increase the active paylines. Lucky Locks, the Wheel of Bonus and a Free Spins round with a Golden expanding symbol add choices around the underlying random results.
Book of Shadows uses 5 reels with a selectable height of 3, 4 or 5 rows. The chosen layout carries 10, 15 or 20 fixed paylines, and qualifying combinations are evaluated from the leftmost reel across adjacent reels. Book of Shadows keeps the selected line set fixed for that chosen grid size.
Book of Shadows centres its design on changing the reel window before a spin or preserving selected reels after one. These controls alter the stake, layout or symbols held for a respin, but they do not let a player select the final reel stops. Book of Shadows evaluates each paid action under the rules displayed for the loaded version.
Book of Shadows has the following verified specifications:
Book of Shadows is listed by Wildz with an RTP of 94.09%, demo play enabled and volatility rated 10/10. The loaded configuration and available controls can vary by jurisdiction, so the information panel inside the game remains the relevant place to confirm the active rules before wagering.
Book of Shadows forms line wins with matching symbols landing from left to right on one of the active paylines. The base 5x3 layout uses 10 lines, while adding one or two Shadow Rows changes the window to 5x4 or 5x5 and raises the line count to 15 or 20. Book of Shadows requires the relevant symbols to align on the same active line.
Book of Shadows charges according to the selected stake and any optional mechanic used for that game cycle. A larger grid creates more evaluated positions and lines, but it does not guarantee that a paid combination will land. Book of Shadows settles the result before another independent cycle begins.
Book of Shadows Shadow Rows let the player choose between three, four and five visible rows. Each added row introduces 5 additional paylines, moving the game from 10 lines to 15 and then 20 while also increasing the total spin cost. Book of Shadows displays the active layout and line count before the next spin.
Book of Shadows applies the chosen row setting to the spin rather than treating the larger grid as a free expansion. Activating more rows changes the wager and the mathematical setup, but it cannot make a particular symbol or payout appear. Book of Shadows therefore pairs the extra positions with an explicit additional cost.
Book of Shadows Lucky Locks become available after a main-game spin and allow up to 4 reels to remain in place while the others respin. The price is adjusted for the selected lock arrangement, allowing promising symbols or Book scatters to stay visible for the next result. Book of Shadows leaves at least one reel available to change during the paid respin.
Book of Shadows treats a Lucky Locks action as an additional paid decision rather than a guaranteed completion of a win or bonus. Holding reels reduces which columns change, but the symbols landing on the respun reels remain random. Book of Shadows shows the adjusted price before the player confirms the action.
Book of Shadows Wheel of Bonus can place a completed win at risk for a chance to enter the Free Spins feature. The mechanic offers a separate route towards the bonus round instead of requiring another standard paid spin to find three Book symbols. Book of Shadows makes collection of the original win the alternative to taking that risk.
Book of Shadows can remove the amount risked if the Wheel of Bonus attempt is unsuccessful. The wheel outcome is random, and neither the size of the prior win nor a repeated betting pattern guarantees entry to Free Spins. Book of Shadows therefore requires the player to choose between a settled return and an uncertain feature attempt.
Book of Shadows awards 10 Free Spins when at least 3 Book symbols land as scatters. A Golden symbol is selected for the round and can expand over an entire reel when it contributes to a win, while one redraw of the selected symbol is available before the feature begins. Book of Shadows uses the Book as both the triggering scatter and a wild symbol.
Book of Shadows uses the active Shadow Rows setting for the awarded spins, and three or more Book symbols during the feature retrigger it. The expanding symbol and retrigger opportunities increase the possible combinations, but they do not ensure a full-reel expansion or a specific feature return. Book of Shadows resolves every free spin independently within the feature rules.
Book of Shadows has a return to player figure of 94.09% on the MGA build served by Wildz for this page. RTP is a theoretical long-term percentage calculated across a very large number of game cycles rather than a promise for one session. Book of Shadows can return a different amount over any finite period of play.
Book of Shadows may appear in other mathematical configurations outside the version described here. Players should check the in-game information panel before staking, because a short run can finish above or below the published RTP. Book of Shadows RTP does not identify when a win, lock opportunity or bonus will occur.
Book of Shadows is rated 10/10 on the Wildz volatility scale, placing it in the very-high-volatility category. Results can therefore be uneven, with non-winning or smaller-paying rounds occurring between less frequent feature sequences and larger outcomes. Book of Shadows players should account for this variation when setting a spending limit.
Book of Shadows volatility describes how payouts are distributed rather than when the next win will arrive. A series without Free Spins or a large line win does not make either event due on the following cycle. Book of Shadows remains random whether the preceding sequence contained wins or losses.
Book of Shadows has a verified maximum win potential of 30,338x the stake. The upper value is associated with the game’s highest-paying combinations and feature conditions, including the Golden expanding symbol across the adjustable reel area. Book of Shadows does not include a progressive jackpot because its jackpot type is listed as none.
Book of Shadows maximum win is a ceiling rather than a typical payout. Shadow Rows, Lucky Locks and bonus access options cannot force the required sequence, and a player may lose the full amount committed to any cycle. Book of Shadows can end a session without approaching the advertised ceiling.
Book of Shadows play begins by checking the information panel, selecting a stake and choosing three, four or five Shadow Rows. The spin control starts a paid cycle, after which Lucky Locks or a permitted gamble option may be offered according to the result. The 60x, 90x and 120x bonus-purchase options are not available through Gambling Commission-licensed casinos in Great Britain. Book of Shadows shows the applicable stake and feature availability in the version supplied by the operator.
Book of Shadows is subject to Great Britain’s online-slot stake limits when supplied by a licensed operator. Customers aged 18–24 may stake no more than £2 per game cycle, while customers aged 25 and over have a £5 maximum; these limits control expenditure but do not change the random outcome. Book of Shadows players should set an affordable limit before using any paid option.
Yes, Book of Shadows supports compatible mobile phones and tablets as well as desktop computers. The adjustable 5x3, 5x4 and 5x5 layouts, paylines and principal feature controls are presented through an HTML5 game interface that adapts to smaller displays. Book of Shadows retains the same three selectable reel heights on a supported mobile version.
Book of Shadows mobile play uses the same random game logic rather than offering a different probability because of the device. Browser support, screen size and connection quality can affect presentation, so the game panel should be checked after loading. Book of Shadows should be closed if a connection interruption prevents the displayed result from being confirmed.
Yes, Book of Shadows has demo play enabled at Wildz. The free version uses virtual credits to demonstrate Shadow Rows, Lucky Locks and the Free Spins rules without producing withdrawable cash winnings. Book of Shadows demo credits cannot be withdrawn or converted into a cash balance.
Book of Shadows demo results do not predict a later real-money session. At a Gambling Commission-licensed website, age verification is required before access to free-to-play gambling games, and practice outcomes cannot reveal a profitable betting pattern. Book of Shadows uses demo mode to explain operation rather than to forecast payout timing.
Book of Shadows may be supplied in Great Britain by an online casino holding the appropriate Gambling Commission permission and carrying the Nolimit City game. Customers must be at least 18 years old, complete age and identity checks and remain within the statutory online-slot stake limits. Book of Shadows feature availability must also follow the controls required for the British market.
Book of Shadows is listed internationally by Wildz, while Wildz states that visitors from the United Kingdom are redirected to partner casinos. Players should check the Gambling Commission public register for the business that ultimately supplies the game before depositing. Book of Shadows players should confirm the receiving operator rather than relying only on the international catalogue.
Book of Shadows real-money play in England, Scotland and Wales falls within the framework supervised by the Gambling Commission. Licensed remote operators must verify at least the customer’s name, address and date of birth before gambling, and purchased slot features are not permitted in Great Britain. Book of Shadows is also covered by the statutory per-cycle limits that apply specifically to online slots.
Book of Shadows players must distinguish Great Britain from the United Kingdom as a whole because Northern Ireland has a separate legal framework. The rules below cover the principal requirements applying when the slot is offered by a Gambling Commission licensee. Book of Shadows free-play access at a licensed remote operator is subject to age verification.
| Area | United Kingdom Rule |
|---|---|
| Minimum online gambling age | 18+ |
| Main regulator | Gambling Commission |
| Online casino licensing | Operators serving Great Britain must hold the appropriate Gambling Commission permission |
| Identity checks | Name, address and date of birth must be verified before gambling |
| Maximum online slot stake, ages 18–24 | £2 per game cycle, in force since 21 May 2025 |
| Maximum online slot stake, ages 25+ | £5 per game cycle, in force since 9 April 2025 |
| Free demo access at licensed operators | Age verification is required before access to free-to-play gambling games |
| Bonus purchase | Purchased slot features are prohibited in Great Britain |
| Wildz status for UK visitors | Wildz states that UK visitors are redirected to partner casinos |
This feature lets you lock up to 4 reels in place on each spin for a variable fee.
The Wheel of Bonus comes into play whenever you land a win. This lets you gamble you win in exchange for free spins.
The game advertises a top payout worth 30,338x your bet.
Min/Max Bet:
€
0.20 –
100.00
Volatility:
High
(10/10)
Platform:
Desktop & Mobile
Developer:
No Limit City
Game Type:
Slots