With Book of Shadows, the slot RTP and Australian online gambling law explained together come down to two points. The return figure most often quoted is right only for the top version of the game. And for anyone physically in Australia, the real-money online game can't lawfully be offered at all, so no local version or local settings exist.
The basics most pages already cover: it's a Nolimit City "book" slot released on 20 August 2020, with a 5×3 grid, Extreme volatility and a 30,338× bet maximum payout.
Which RTP figure is right
You'll see 96.01%, 96.19% and a row-by-row series of 96.01%, 96.07% and 96.19% for three, four and five rows. The game sheet from Nolimit City doesn't confirm the row-by-row sequence. It shows a total RTP of 96.01% plus two lower versions:
| Version (game ID) | RTP |
|---|---|
| BookOfShadows | 96.01% |
| BookOfShadowsDX1 | 94.09% |
| BookOfShadowsDX3 | 90.15% |
So 96.01% is the maximum RTP the provider lists, rather than a guaranteed amount. A casino can run any of the three builds. The game's own rules do give a separate RTP for four and for five Shadow Rows, filled in by the game, so a row-based figure may be real; the info panel within the game you're checking is the only reliable source.
The max-win odds nobody official has published
Review sites often repeat a third-party estimate that the maximum win on a base spin has a 1 in 97 million probability. Nolimit City confirms the 30,338× ceiling but marks the max-win probability as "N/A".
The provider does publish other frequencies, based on 10 billion simulated spins:
- The bonus round occurs about 1 in 154 spins. Some pages show this number as if it referred to the top win, but it doesn't.
- A win of 100× bet or more occurs about 1 in 843 spins.
- The hit frequency is 33.33%, meaning roughly one in three spins gives a return.
With Extreme volatility, most of the return comes from rare large hits. This game normally has long runs of no wins or small wins.
How the features work
Shadow Rows
For a higher stake, you can increase the grid size from 5×3 to 5×4 or 5×5. Adding rows increases the number of paylines. The provider doesn't provide the payline count for every layout. You can also change the rows for the free spins, which affects the number of spins you receive.
Lucky Locks
You can lock selected reels and respin the remaining ones for a modified price following any base-game spin. Nolimit City recommends keeping book symbols to increase the likelihood of triggering free spins. Every respin constitutes a separate paid bet, and it adds up quickly.
Free spins and the Golden symbol
The book acts as both a scatter and a wild. 10 free spins start when three or more appear. A Golden symbol is picked randomly and fills its entire reel whenever it creates an additional win. If the initial selection isn't to your liking, you can redraw it one time.
Gambles and the feature buy
Players can use a 50/50 double-or-nothing gamble on wins, or bet them on a wheel to try for free spins. The Nolimit Bonus allows players to purchase free spins directly.
The provider mentions that the buy and the gamble-into-bonus might be taken out in some regulated markets. Australia isn't one of those markets with a trimmed version, for the reasons below.
Stakes as shipped
The Nolimit City page lists €1.00 / €100.00, though the game sheet clarifies that the default bet is €1.00. The real range spans from €0.10 to €100, or €200 when using Boosted Bet. Casinos can set limits within those bounds.
How Australia's rules apply to this game
Online slots can't be offered here
Under section 15 of the Interactive Gambling Act 2001 (Cth), online casino games, including online pokies and slots, may not be provided to people physically in Australia. This applies to Australian and offshore providers alike. They also may not be advertised here.
For Book of Shadows, this means there is no lawful real-money online version for an Australian player. There is no local build with features switched off or a capped buy price either. The offer itself is prohibited.
The offences fall on providers
The Act's offences target those advertising or providing the service, rather than the players. The ACMA has internet providers block websites that offer prohibited gambling services. A site isn't lawful just because it bypasses a block.
No stake cap and no RTP minimum
No online casino can be licensed in Australia, so no Australian stake cap or minimum RTP for online slots exists. Local standards cannot be used to compare any of the figures listed above. The €200 Boosted Bet, the feature buy and the 90.15% build aren't measured against any Australian limit, since no lawful Australian online version exists.
BetStop doesn't cover it
BetStop, the national self-exclusion register run under ACMA, covers licensed online and phone wagering. It does not cover online casino games or gambling services provided illegally in Australia. Signing up won't block access to an online Book of Shadows offering.
The 2026 reforms don't change this yet
The Interactive Gambling Amendment (Gambling Reform) Act 2026 was passed in August 2026. According to the Federal Register, its primary schedules start on 1 January 2027. ACMA's overview includes lotteries, enforcement, BetStop and advertising. It contains nothing that allows online casino slots or establishes rules for RTP, speed or slot stakes.
The free demo
A free demo using virtual play coins is linked on Nolimit City's page. This isn't real-money gambling. It's a way to see how Lucky Locks and Shadow Rows affect the cost of every spin.
Establish your limits before you begin if you gamble in any lawful form.