sand pile model app for iPhone and iPad

The longer the chain reaction, the more score values will be added.
Make chain reaction huge with as little power (number of taps) as possible. That is the strategy to raise the score.

If you clear all the cells, the stage clears and you move on to the next stage.
As the stage goes up, the difficulty goes up a little.

The power will be added automatically when the stage clears.
The power can also be increased by looking at the CM.

Play is easy. The guide will be displayed at the first start, so please refer to it.


● cell
The cell shows numbers or *.
The main operation of play is to tap this cell.
When you tap a cell, numbers increase or * disappears and stars are emitted up, down, left and right.

You can change the display of cells from numbers to shapes.

● power
Power means the number of times you can tap a cell.
When power is low, the cells area frame turns orange or red to indicate that.
When the power goes to zero, the game is over.

● stage
When all the cells disappear, the stage is clear.
When you clear the stage, power is added and you move on to the next stage.

● score
When the number displayed in a cell increases or the cell disappears, the score is added.
The score to be added varies according to the length of the chain reaction and the number of stage.
The longer the chain reaction, the higher the score to be added.
The higher the number of stage, the higher the score to be added.

● power up
You can increase the power by watching CM.

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The app name ‘sand pile model’ is derived from the mathematical model ‘sand pile model’.