Place Box is a single-player game. The goal of the game is to increase focus and reaction time.

You have to tap to place boxes on the canvas.
Blue boxes are previously placed boxes.
The red box is the most recent placed box.
As for the white one, it's the indicator where the next box will be placed. Once you tap, it will be placed.

Please avoid placing boxes on blue ones, otherwise, the game will be over.

Also, you can compete with the whole world through Game Center Leaderboard.
Can't wait to see your score.