Book of Sun: Choice

Book of Sun: Choice is an Ancient Egypt slot where the Book symbol works as both Wild and Scatter. Free Spins feature Special Expanding Symbols that pay without adjacency, and players can buy the bonus for 90× the bet.

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About Book of Sun: Choice

Book of Sun: Choice is a ThreeOaks slot inspired by Ancient Egypt. The game uses the classic “Book” mechanic where the Book symbol acts as both Wild and Scatter. Three or more Books trigger 12 Free Spins, with retriggers awarding 12 additional spins. At the start of Free Spins, one symbol becomes a Special Expanding Symbol that can cover full reels and pay without adjacency. A Buy Bonus option is available for 90× the current bet.

Main Features of Book of Sun: Choice

Free Spins with Special Expanding Symbols
Book symbol acting as Wild and Scatter
Buy Bonus feature (90× current bet)

Bonus Mechanics in Book of Sun: Choice

Free Spins: 3 or more Books trigger 12 Free Spins. Retriggers add 12 more.
Special Expanding Symbols: Player selects one at feature start. Expands to cover reels and pays even without adjacency.
Bonus Buy: Players can buy Free Spins for 90× their bet.

Book of Sun: Choice Demo

Testing the game in demo helps you learn how often Books land to trigger 12 Free Spins, how Special Expanding Symbols behave (expanding to fill reels and paying even without adjacency), and whether buying the bonus at 90× suits your bankroll strategy. Spin risk-free first to gauge streakiness, symbol pacing, and overall win distribution before playing for real.

Book of Sun: Choice Payout Table

In Book of Sun: Choice the high-paying symbols are the pharaoh (up to 500×), falcon-headed deity (200×), green scarab (75×) and blue bird (75×). Low-paying ones are A and K (up to 15×) plus Q, J and 10 (up to 10×). The golden Book acts as both Wild and Scatter, substituting for other symbols, triggering Free Spins, and paying directly up to 200×.

Scatter

5: 200×

4: 20×

3: 2×

Pharaoh

5: 500×

4: 100×

3: 10×

2: 1×

Horus

5: 200×

4: 40×

3: 4×

2: 0.5×

Green Scarab

5: 75×

4: 10×

3: 3×

2: 0.5×

Blue Bird

5: 75×

4: 10×

3: 3×

2: 0.5×

5: 15×

4: 4×

3: 0.5×

5: 15×

4: 4×

3: 0.5×

5: 10×

4: 2.5×

3: 0.5×

5: 10×

4: 2.5×

3: 0.5×

Free Spins Trigger

When three or more Book symbols land during the main game, they unlock a set of 12 Free Spins. If additional Books appear while the feature is already active, they add another 12 spins to the round, giving players more chances to extend the session and build larger wins without restarting the base game.

Special Expanding Symbol

At the start of the Free Spins feature, players must select one symbol to act as a Special Expanding Symbol for the duration of the round. Each time the feature is retriggered, an extra expanding symbol can be chosen, with the potential to fill reels and create bigger wins as the bonus progresses.

Activating Expanding Symbols

During Free Spins, players can activate up to nine Special Expanding Symbols. Any symbol from the paytable, except the Book, may be chosen for this role. When selected, it has the ability to expand and fill the entire reel, adding a dramatic boost to the round.

How Expansions Work

If more than one Special Expanding Symbol is active, they expand one after another whenever enough symbols land to create a win. Expanded combinations pay even when symbols are not on adjacent reels, ensuring more frequent payouts and enhancing the overall winning potential.

Buy Bonus Feature

The game includes an option to instantly purchase Free Spins instead of waiting for them to trigger naturally. The cost of buying the feature is 90× the current bet, and once purchased, the Free Spins begin immediately at the same stake level. Players should note that the option is unavailable if there is not enough balance. This feature provides a shortcut to the most exciting part of the gameplay, letting players dive straight into the Free Spins round with the chance to unlock Special Expanding Symbols.

How to Play Book of Sun: Сhoice

Set your stake and spin the reels, watching for the golden Book symbol that unlocks the Free Spins feature. When three or more Books appear in the base game, they trigger 12 Free Spins and open the way to larger payouts. Before the round begins, one regular symbol (not the Book) is randomly chosen as the Special Expanding Symbol, and it remains active throughout the entire feature. Whenever enough of these symbols land to create a win, they expand to cover the reel completely, dramatically increasing the chance of multiple combinations. Expanded wins also count even when symbols do not land on adjacent reels, which makes every spin feel unpredictable and exciting. If three or more Books land again during the bonus, the round is retriggered with 12 additional spins, and each retrigger introduces another expanding symbol that can join the action. Over time, several chosen symbols may expand one after another, producing spectacular sequences and turning ordinary spins into massive wins. For players who do not want to wait for the natural trigger, a Buy Bonus option is available for 90× the current bet, instantly launching Free Spins at the same stake. This option gives direct access to the most thrilling part of the gameplay and is especially appealing to those who enjoy fast action. Many players choose to combine natural play with occasional bonus buys, making the experience flexible and tailored to their style.

Sun book, big booms, bigger chills

Grabbed a no-deposit deal with 100 FS and jumped straight into Book of Sun: Сhoice. The vibe is pure Egypt—golden Books, pharaohs, and that falcon god staring you down. Sound is low-key but tense, which fits the “one symbol can blow up the screen” feeling. My first bonus came from 3 Books for 12 spins. I picked the falcon-headed symbol and instantly felt the volatility—dead spins, then BOOM: three falcons hit, expanded across reels, and paid without adjacency. Later I retriggered for +12 and added a second expander. That’s when the heart-rate spiked. Best moment: a line-up that turned into an expanded block for roughly a 75× total (those mid symbols top at 75× for five). I chased the pharaoh dream (5 = 500×) but only teased it—two pharaohs kept landing and paying 1×, which is both comforting and torturous. Overall: swingy but thrilling. The 90× Buy Bonus is tempting if you’re impatient, but I liked earning it with the free spins from the promo. I’d play again for that expanding-symbol rush - just be ready for dry spells between the sunshine.

Cardiologist

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