2048

The game starts with a few numbered tiles placed on the board. Using the arrow keys on a computer or swiping on a mobile 2048 device, you can move all tiles in one of four directions: up, down, left, or right. Whenever two tiles with the same number touch, they merge into one tile with double their value. For example, two 2 tiles become 4, two 4 tiles become 8, and two 16 tiles become 32. After each valid move, another small tile appears in an empty space, gradually making the board more crowded.