Book of Truth

(TrueLab) Slot Review


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Book of Truth: Slot Overview

Another day, another 'book of' style slot rolls off the assembly line, this one coming from the team at TrueLab. Their first foray into the popular 'book of' category sees the studio use everything you associate with the genre while making an ingenious alteration to its free spins, leading to a higher max win than usual. While firing off one of these games can be a sign of taking the easy option, Book of Truth largely avoids this accusation due to its high build quality and clever feature twist.

Players approach an Egyptian temple lit up at night by burning braziers when taking on Book of Truth. Its action occurs on a 5-reel, 3-row game panel, where 1-10 paylines may be selected. The game is heavy on Egyptian vibe, with plenty of drama caused by all the statues, flames, and gold, but also from a dramatic soundtrack featuring a heavy Arabic influence and strong vocal section powering over the top. Sure, this thing's been done countless times in the past, yet Book of Truth brings Ancient Egypt to life well, where a heat haze literally shimmers off the screen.

book of truth slot

Since paylines are adjustable, bets start at just 1 p/c per spin, rising to $/€100 for the deeper-pocketed crowd. Hardcore gamers might be put off by Book of Truth's medium volatility, yet its new feature and higher than normal 15,000x potential are convincing trade-offs. The default RTP is decent as well, generating a theoretical return value of 96.33%, with no mention of whether this changes when buying the feature.

In Book of Truth, regular wins happen when three low paying 10-A card symbols land left to right from the first reel or at least two premiums. High pay symbols include Anubis, Bastet, and Horus, topped with an adventurer type who, not meaning to be harsh, doesn't look like a regular adventurer - he's got more of a villain look, but he's got the Indiana Jones get up, so he'll do. Values for premium symbols range from 75 to 500 times the stake, so full screens of Indianas are worth the full 5,000x the bet you look for as standard in these sorts of games. Next up, features.

Book of Truth: Slot Features

Book of Truth's round of free spins is where the expanding chosen symbols pull together full screen wins. However, Book of Truth actually comes with two bonus games rather than the usual one. The key to both is the book symbol, which doubles both wild and scatter. As wild, the book replaces any symbols to complete a line win, except expanded symbols.

Landing 3 or 4 scatters awards 10 free spins plus a payout of 2 or 20 times the stake. Before free spins commence, a regular random symbol is chosen to be the expanding one. Chosen symbols expand whenever they can form a win during the bonus round. Expanded symbols pay all active ways, regardless of their positions on the grid. That is, they do not need to be adjacent to each other.

Where Book of Truth gets really interesting is when 5 scatters land to award 10 True Free Spins and a prize of 200x the bet. In this one, a symbol is not selected to be the expanding one. Instead, all regular symbols are expanding symbols for True Free spins, acting in the same way as described above.

Fans of 'book' slots might well be tempted by the sound of True Free spins, so where permitted, players have the choice of buying either of the two free spin games. As you'd imagine, there is quite a cost difference between the two options, where 10 Free Spins costs 89x the stake or 536 times the stake is the cost for 10 True Free Spins. In both cases, this is with all 10 lines active – costs vary if you lower the number of lines.

book of truth slot
Book of Truth - Truth free spins in action

Book of Truth: Slot Verdict

Past games, like Legacy of Dead, could technically turn all pay symbols into expanding symbols during free spins. However, they required retriggers to do so, and getting so many retriggers is difficult, if not nigh on impossible, to achieve in real life. This makes True Free Spins a pretty unique proposition since all regular symbols are expanding symbols from the start of the feature. In practice, landing five scatters is no easy task either, which leaves buying the feature tempting, though it comes with a hefty price tag.

Another positive piece of news is potential has increased due to the feature tweak. Often you come across some 'book' innovation that looks tantalizing but still packs a regular 5k max win figure, which feels a little out of space since that's what most produce anyway. Not so Book of Truth, where wins have been capped at 15,000 times the stake. The rules section states the highest total coaxed out of the game was 12,000 times the bet, once in a billion simulated game rounds. Outside True Free Spins, Book of Truth is more or less a regular 'book' slot, albeit with above-average audio-visuals. Still, knowing five scatters can kick off something special, and much juicier wins are possible pushes Book of Truth to the upper part of the queue for players in the mood for this sort of game.

On one level, Book of Truth might be another 'book' imitator, but it's also one of TrueLab's best games. Using a pre-made template has provided a structure to follow while giving the team space to pad out gaps with creative flourishes. This they've done well, creating one of the more exciting free spins updates to come along in a while. There's a great atmosphere, the game caters to literally any bankroll, and it has an all expanding symbol game up its sleeve should you be lucky enough to hit five scatters or go all in to buy it.


Book of Truth offers something enticingly unique for fans of classic book-style gaming to enjoy.

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