What we like / What could be better
What we like
- Genuine 15,000x ceiling, high for a 10-payline book slot
- Two-tier free spins (standard and True Free Spins) adds variety to the bonus round
- Stake range from A$0.01 to A$100 fits almost any bankroll
- Demo mode available before risking real money
What could be better
- RTP can be set as low as 92.14 % depending on the operator, well below the quoted 96.33 %
- Only 10 paylines, thinner base-game action than modern 20+ line books
- Bonus buy price isn't published in the game's specification and varies by lobby
What the 15,000x ceiling pays at real stakes
Book of Truth's headline number is a maximum win of 15,000x your total stake. That's the ceiling TrueLab Games built into the paytable, and it only means anything once you attach a dollar figure to it.
The maths is straight multiplication: stake x 15,000 = ceiling payout.
| Stake per spin | 15,000x ceiling pays |
|---|---|
| A$0.20 | A$3,000 |
| A$1.00 | A$15,000 |
| A$5.00 | A$75,000 |
| A$20.00 | A$300,000 |
| A$100.00 (max bet) | A$1,500,000 |
At the A$0.01 minimum, the ceiling is worth about A$150, barely a talking point. Push to the A$100 top of the stake range and the same multiplier is worth A$1.5 million on paper. Whichever number you're chasing, check the operator's own win cap before you sit down at higher stakes; some lobbies cap total payouts per bonus round regardless of what the paytable technically allows.
Medium volatility, big ceiling: how rare is a 15,000x hit
TrueLab rates Book of Truth as medium volatility, which sits oddly next to a 15,000x ceiling. Medium volatility usually means a steadier spread of smaller and mid-size wins, not the long, dry stretches that pure high-volatility books are built for.
In practice that combination means the ceiling exists, but it's not the game's typical outcome. Most sessions will be carried by the expanding book symbol landing two or three wins across a payline, not the full 15,000x line-up.
We haven't run our own spin tracking on Book of Truth specifically. Our testing so far covers payout speed and lobby availability, not in-game hit frequency, so treat any hit-rate figure you see elsewhere with the same scepticism you'd apply to ours if we hadn't measured it. What the published RTP and volatility rating tell you is direction, not a guarantee for any single session.
RTP: 96.33 %, but it's not the only version live
The RTP most commonly quoted for Book of Truth is 96.33 %. That's a solid number for the book genre, comfortably inside the range players expect from a TrueLab Games title.
What matters more is that TrueLab ships this game with three separate RTP settings: 96.33 %, 94 % and 92.14 %. The operator picks which one goes live, and the choice isn't always disclosed on the lobby page. The difference between the top and bottom setting is close to four percentage points, which over thousands of spins is the gap between a game that pays back generously and one that quietly runs cold.
Before you commit real money, check the in-game paytable or info screen. Reputable pokie lobbies show the exact RTP percentage running on their build; if that number isn't visible anywhere, that's worth noting on its own.
Free spins, True Free Spins and the expanding book
Land the scattered book symbol enough times and Book of Truth drops you into its free spins round. TrueLab layers two versions of this feature into the game: a standard free spins mode and what the developer calls True Free Spins, a boosted variant that changes the maths behind the round rather than just adding more spins.
Both modes lean on the same trigger mechanic as the wider book genre: one symbol acts as the expanding wild and scatter combined, growing to fill an entire reel when it lands as part of a winning line during the feature. That expansion is what turns a modest base-game hit into a multi-line payout, and it's the mechanic doing most of the heavy lifting toward that 15,000x ceiling.
Outside the feature, the base game plays like most 5x3, 10-payline books: steady, unremarkable wins that exist mainly to fund your way into the next trigger.
Bonus buy: what the button actually costs you
Book of Truth ships with a bonus buy option, and in most pokie lobbies serving Australian players that button is live, not greyed out. TrueLab includes bonus buy as one of the game's core mechanics, so the feature isn't a lobby-specific add-on; it's built into the title.
What it costs varies by operator and isn't fixed in the game's published specification, so treat the price shown on your screen as the real number, not a rule of thumb from another site. Before you tap buy, read that price the same way you'd read a new stake: if the bonus costs 80x your normal spin, you're effectively betting 80 spins' worth of bankroll on one round.
The upside is skipping the wait for a natural trigger. The trade-off is that you're paying a fixed price for a variable outcome, and that price eats into your bankroll before the reels even move. Weigh it against how many spins you've got left in your session, not against how badly you want the feature.
Picking your stake: play for spins, not for the win
The honest way to approach a medium-volatility book with a 15,000x ceiling is to size your stake around how many spins you want, not around the number on the paytable.
- Set a session bankroll first, in dollars, before you open the game.
- Divide that bankroll by the number of spins you want to play. A$100 over 200 spins puts you at a A$0.50 stake, not A$5.
- Run the demo version before you touch real money. It shows you the reel behaviour, the expanding book, and both free spins modes without costing you anything.
- Decide upfront whether bonus buy is part of your plan. If it is, subtract its likely cost from your spin count before you start, not after your balance drops.
- Treat the 15,000x ceiling as a possibility, not a target. Medium volatility spreads results out; the ceiling sits at the far edge of that spread.
Book of Truth's stake range runs from A$0.01 to A$100 per spin, wide enough to fit almost any bankroll into a reasonable spin count. The number of spins you can afford tells you more about your odds of reaching a feature than the multiplier printed on the paytable ever will.
Grid, paylines and where Book of Truth sits in the genre
Book of Truth runs on a 5x3 grid with 10 fixed paylines, a tighter layout than the 20 to 40-line books that have become common since Book of Ra set the template back in 2005. Fewer paylines mean fewer small hits per spin, which is part of why the base game feels quieter than its ceiling suggests.
TrueLab Games released the title on 8 July 2021, well into the era when most book slots were adding Megaways reels or cluster mechanics to stand out. Book of Truth stuck with the classic format instead: Ancient Egypt theme, book scatter, expanding symbol, straightforward paylines. If you've played Book of Dead or the original Book of Ra, the base game will feel immediately familiar; the differences show up in the free spins structure and in that unusually high 15,000x ceiling, which sits above what most 10-payline books in this genre publish.
Try it free first: demo play and what it actually proves
Most pokie lobbies serving Australian players that carry TrueLab Games titles let you run Book of Truth in demo mode with play credits, no deposit required. It's the fastest way to see the expanding book symbol trigger, compare the standard free spins to True Free Spins, and get a feel for how often the base game pays before you commit a cent.
What demo play won't tell you is whether the live RTP running on that specific lobby is the 96.33 % top setting or one of the two lower ones. Demo builds sometimes run on a different configuration than the real-money version, so use the free session for mechanics and pacing, not for judging the payback percentage. Once you've got a feel for the volatility and decided on a stake plan, that's the point to switch to real money, if you're going to at all. The lobbies below carry Book of Truth in their TrueLab catalogue if you're ready to compare welcome offers.