The purpose of the game is to reach the number 2048 on a tile, and to keep empty blocks on the grid as long as possible. All available tiles on the grid can be moved at the same time with the arrow buttons to the corresponding directions. After every move a new tile appears. If two tiles with the same number on them are moved next to each other, they can be merged into one by sliding them into each other, with the two numbers changing into their sum. These sums are the points, which are earned after every merge. The game is over when all the blocks are filled with tiles and the tiles cannot be moved or merged in any way.