Merge Numbers Puzzle is a free puzzle game developed by Vnstart LLC for Android devices. The game is a digital unification game that requires players to skillfully move the numbers +1, -1, +2, and -2 to the appropriate numbers to make addition and subtraction. The goal is to combine blocks of the same number to create bigger blocks.

The game is easy to learn but difficult to master. Players start with 5 original cards that they can drag to any card in the chessboard area. When two cards meet, they will calculate the total of both cards on the board. With every three identical cards near each other, they will combine to form a bigger new card. The game ends when the player's card number reaches zero.

Merge Numbers Puzzle is not only a fun and addictive game but also helps players practice their ability to do addition and subtraction quickly. It is an interesting game for adults to play with friends and challenge relatives.

Overall, Merge Numbers Puzzle is a simple yet challenging puzzle game that will keep players entertained for hours.