Book of 1X: how this Mancala slot works
Book of 1X, made by Mancala, is a 10-line video slot whose fixed paylines run across a 3x5 grid of five reels, three positions high. Its Scatter has a second role as a Wild, and the bonus is a free spins round in which a randomly drawn symbol can expand.
How a round of Book of 1X works
Item | According to the game rules |
|---|---|
Developer | Mancala |
Layout | 3x5 grid, 10 fixed lines |
Win direction | left to right |
Key symbol | Scatter that also serves as Wild |
Bonus entry | at least 3 Scatters anywhere on the grid |
Bonus round | 10 free spins with an expanding symbol |
Buy Bonus price | 44 times the stake |
Before each spin you fix the total stake, which cannot change once the round is under way. A line pays only its best combination. Paytable amounts adjust to the stake on screen, and winning combinations are credited to the balance in full.
The Scatter's double role
Wherever it appears on the reels, the Scatter pays. As a Wild, it can replace any other symbol to complete a combination.
Three or more Scatters in any position switch the game into its bonus round.
Free spins: the special symbol at work
The round gives 10 free spins. At the start, the game draws a special expanding symbol at random. Once regular wins are settled, the chosen symbol may stretch across 3 positions of its reel; it then pays like the regular symbol, even when its positions are not adjacent, on all lines played.
Three or more Scatters during the free spins add 10 spins to the run. The stake stays the same as well: the bonus is played at the stake of the triggering spin, a rule that applies to every bonus game.
Buy Bonus and game options
To go straight to the bonus, the Buy Bonus feature sells entry to the bonus's 10 free spins at a price of 44 times the stake. Buying triggers them at once from the base game.
Autoplay is set by number of rounds before you press “Start Autoplay”. Two safeguards halt it: a loss limit, when losses go beyond the threshold you defined, and a win limit, when a single round's win reaches or exceeds the maximum you chose. During the run, the remaining spins are counted down where the “Start Autoplay” button was; pressing that counter stops Autoplay.
The interface also offers a quicker game speed, extra settings, the rules screen, a mute button with a volume slider, and full-screen mode. High-quality graphics are optional: turning them off helps performance, and any switch of this setting reloads the game.
Trying Book of 1X: free mode, real money, app
Book of 1X opens for free, without a stake, from its card in the slots section.
Android devices use the APK that the official site provides, and the mobile page describes the installation steps.
More Mancala titles sit on the Mancala studio page, while the providers index lists the studios in the catalogue.
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Book of 1X FAQ
Can the Scatter replace the special symbol during free spins?
No. According to the game rules, Scatters cannot substitute for the special expanding symbol in the free spins game.
Does the special symbol change when extra free spins are won?
No. The 10 additional spins won with 3 or more Scatters during the bonus use the special symbol that is currently selected.