Book of Kingdoms™ Slot
100% Deposit Bonus up to £100 + 50 Bonus Spins on Big Bass Bonanza
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Book of Kingdoms™ Demo
Recommended Casino
5,500+
Instant-
United Kingdom (UKGC)
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Book of Kingdoms™ Slot RTP, Details & Wager Limits
The Book of Kingdoms™ slot game is built on a 5-reel, 3-row layout with 25 paylines. Just as in many online slots, wins land when you connect three or more identical symbols across adjacent reels, beginning on the leftmost.
You can adjust your wager by tapping the + or – icons beside the spin button to change coins per line and coin value. There’s also the option to modify the total bet directly. The window follows the usual Pragmatic Play setup, starting at just 25p and going up to £250. However, when playing at UK Book of Kingdoms™ casinos, you’ll find the cap limited to £5. On top of that, autoplay, turbo, and quick spin aren’t available there. Under normal conditions, you’d be able to run 10 to 1,000 auto spins and increase the pace of each round.
You’re looking at a Book of Kingdoms™ RTP of 96.69%, which puts it a touch above the average calculated across some of the best online slots. However, there’s a 95.65% version, so be mindful when picking a casino. Also, since the game runs on medium volatility, you can expect smaller hits to keep the balance moving, with the occasional spike when features align.
The Book of Kingdoms™ max win tops out at 20,000x your bet. That’s a hefty return by any measure. Still, have a look at our free slots library. We got plenty more titles there with even higher potential.
Book of Kingdoms™ Theme—Sand-Swept Adventure Guided by Fortune Seekers and Ancient Secrets
The background in the Book of Kingdoms™ slot represents a desert environment at sunset, framed by palm leaves and ancient stone structures. The reels are bordered by worn pillars wrapped in vines. Then, in the distance, you’ll see staircases and towers carved into rock that indicate a hidden settlement or lost city.
As for the soundtrack, the game features an atmospheric rhythm influenced by Middle Eastern styles. You’ll be able to hear plucked string instruments, potentially the oud, joined by light hand-drum patterns and flowing flute motifs.
When it comes to symbols, the reels use polished 10 to A royals, shaped to match the desert theme, for smaller payouts. The higher tier consists of the explorer, the woman with a snake, the sultan, and the fez-wearing monkey. The golden book serves as both the wild and bonus symbol.
| Symbol | Payout / Info |
|---|---|
 10 | 3, 4, or 5 = 0.2, 0.8, or 2x the stake |
 J | 3, 4, or 5 = 0.2, 0.8, or 2x the stake |
 Q | 3, 4, or 5 = 0.2, 0.8, or 2x the stake |
 K | 3, 4, or 5 = 0.2, 0.8, or 2x the stake |
 A | 3, 4, or 5 = 0.4, 0.8, or 2x the stake3, 4, or 5 = 0.4, 2, or 8x the stake |
 Monkey | 3, 4, or 5 = 0.4, 2, or 8x the stake |
 Woman With Snake | 3, 4, or 5 = 0.6, 4, or 12x the stake |
 Sultan | 3, 4, or 5 = 0.8, 6, or 16x the stake |
 Explorer | 3, 4, or 5 = 1, 10, or 20x the stake |
 Wild | Book | Substitutes for all symbols except the Scatter & Money Symbol; 3 or 4 = 1 or 20x total bet + triggers free spins |
Book of Kingdoms™ Mobile Slot
I first tested the Book of Kingdoms™ demo at mobile casinos, trying both portrait and landscape views to see how well it handled the switch. Gameplay remained stable throughout, with no noticeable slowdowns.
In portrait mode, the reels sit toward the centre of the screen while the controls shift lower. This keeps everything within easy thumb reach. Rotating to landscape stretches the grid horizontally and pulls the interface closer together.
Book of Kingdoms™ Bonus Features
Unlike many new slots that come loaded with stacked mechanics, the gameplay in Book of Kingdoms™ revolves around free spins. These get triggered by the book symbol and a Money Respin mode. Both introduce their own payout paths, with expanding symbols in free spins and fixed jackpot values tied to the coin system.
Money Symbol
The silver coin is the dedicated Money symbol and can land on any reel. Each time this appears, it takes a random cash value from a preset range. You might also see a Mini (30x), Major (100x), or Mega (1,000x) jackpot values. Also, landing five or more coins at once triggers the Money Respin feature.
Money Respin Feature
After any regular line wins are paid, all standard symbols disappear. Only the coins that triggered the feature remain on the reels. Then the slot switches to special reels containing only coins and blank spaces. You begin with three respins.
During the feature, any new coin that lands locks in place until the mode ends. Every time you land at least one coin, the respin count resets to three. The round continues until no respins remain or the grid fills with coins.
Free Spins
The free spins round starts with 5 spins, and before it begins, the game randomly selects one regular symbol to become a special expanding symbol. After standard wins settle, this can expand to cover all positions on its reel and pays according to the paytable on every reel where it appears. This holds even if those reels are not adjacent; it only expands when enough symbols land to form a winning combination.
During the round, landing 3 or more Book symbols awards an extra 5 spins, and there’s no limit on how many times this can happen. Plus, the same expanding symbol remains active throughout the entire feature.
Book of Kingdoms™ Verdict: Treasure Runs in a Lost Desert Kingdom
I love how the small themed touches in Book of Kingdoms™, like the carved stone pillars and warm sunset lighting, help sell the idea of exploring forgotten ruins. The bonus lineup is fairly compact, but that actually benefits those who prefer easy-to-understand features. And they’re particularly rewarding, too. Free spins hinge on one symbol expanding across reels, and the money respins add fixed jackpot values.
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Charlon is an accomplished iGaming professional with years of experience in the UK and Irish markets. If you need expert advice on online casinos and slots, he’s the one to turn to. His deep knowledge and insights into the industry make him a trusted resource for guidance and recommendations.
