Impossible 13

Impossible 13 is a challenging number merging puzzle game where you combine three or more identical numbers to merge them into the next higher number. Keep merging and adding 1 until you reach the ultimate target: number 13! It sounds simple, but the difficulty quickly ramps up. Test your strategy and see how high you can get before running out of moves in this addictive game by Robo Whale.

Tap or click on groups of 3 or more identical numbers to merge them.

Each merge increases the number by 1.

Continue merging to reach number 13.

Plan your moves carefully—once you run out of moves, the game ends.

Challenge yourself to beat your highest score!