Number Tubes

Number Tubes is a fun sorting game that gets more challenging the longer you play. Stack the numbered marbles on top of each other to make them merge together and form a higher number.

How to play Number Tubes?

You can pick up any marble from the four tubes and drop it into another tube. When two of the same marbles touch, they will merge together and form a new one. The number on the new marble will be one point higher.

When you move any marble and fail to make a match, a new row of marbles will appear at the bottom of the tubes. These new marbles will push the other marbles up.

Keep merging marbles and see how far you can count. But watch out! If the marbles spill over the top of any of the four tubes, you lose the game.

Play more free online games like Number Tubes

For more games in which you have to add up numbers or merge numbered items, head over to our collection of number games.

We also have a section with lots of other sorting games and merge games you might enjoy. 

Who created Number Tubes?

Number Tubes was created by GameBerry Studio.

When was Number Tubes first released?

This game was first released on September 18, 2025.