Slots
Book of 1X by Mancala: slot rules and free spins
Book of 1X is a Mancala video slot built on a 3x5 grid (three rows across five reels) with 10 fixed paylines. Its whole design rests on one symbol: a Scatter that doubles as the Wild and, when three or more land, opens a free spins round with an expanding symbol.
One symbol, two jobs: Scatter and Wild
The Scatter pays wherever it lands on the reels. It also works as a Wild, filling in for any other symbol to make up a winning combination.
Land three or more Scatters in any positions and the free spins bonus game begins.
Free spins with a special expanding symbol


The bonus opens with 10 free spins, and a special symbol is picked at random as it starts. During the free spins, things happen in this order:
Regular symbols pay out first;
The special symbol may then expand to fill 3 positions on its reel;
Once expanded, it pays like the regular symbol, even on non-adjacent positions and on all lines played.
Scatters cannot take the place of the special symbol during this round.
Book of 1X at a glance
Feature | Detail |
|---|---|
Studio | Mancala |
Grid | 3x5: 3 rows, 5 reels |
Paylines | 10 fixed lines, paying left to right |
Scatter | pays anywhere on the reels, also acts as Wild |
Bonus trigger | 3 or more Scatters |
Free spins | 10, with a randomly chosen expanding symbol |
Buy Bonus | 10 free spins for 44 times the stake |
You set the total stake before the spin, and it stays locked until the round ends. Each line pays only its highest win, paytable values follow the current bet, and wins are added to the balance in full.
Buying the bonus and controlling the game
Buy Bonus skips the wait for Scatters: straight from the base game, it launches the 10-spin free spins round. The price is 44 times the stake, so it scales with the bet selected before you buy.
Autoplay: choose the number of rounds, then hit “Start Autoplay”.
Loss limit: the run stops once your losses exceed the limit you set.
Win limit: it also halts if one round pays as much as, or more than, the top win you defined.
Spins left: during Autoplay, a counter takes the place of the “Start Autoplay” button; tapping it ends the run.
Further controls let you speed up the gameplay, open extra settings and the rules, mute the sound, adjust volume on a slider and go full screen. High-quality graphics improve the visuals; disabling them helps performance, and changing this option reloads the game.
Playing Book of 1X for free, for money and on a phone


Book of 1X starts free of charge, without any stake, from its card in the 1xBet slots catalogue.
Android users install the 1xBet app from an APK file published on the official site; the mobile page lists the installation steps.
The rest of Mancala's catalogue is gathered on the Mancala page, and the studio directory points to other providers. For another way to play, live dealer tables have a section of their own.
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Book of 1X: common questions
Can the free spins be extended?
Yes. Three or more Scatters during the bonus add 10 free spins, and those extra spins keep the special symbol already in play.
Which stake applies to free spins won with Scatters?
It is the stake of the triggering spin. The game rules state that all bonus games use the same stake as the spin that started them.