2048 Prototype is a puzzle based on a grid that gradually fills with numbered tiles. After each move one of the empty tiles will fill with a value of 2 or sometimes 4. The four arrow buttons (up, down, left, right) slide all the tiles on the board in the direction of the arrow until they encounter the edge of the grid or another tile. Adjacent tiles of the same number will double and combine into a single tile when they collide. The goal is to trigger a combination that equals 2048. But if you reach 2048 don't stop there, higher combinations are possible. If the board fills up and none of the adjacent tiles contain the same numbers, the game is over.