Number Chain

Number Chain is a free browser-based number puzzle game for quick mental breaks.

The goal is simple: find chains of 4 numbers in a row on the grid. A valid chain can go horizontally, vertically, or diagonally.

A chain can be either numbers in sequence, like 3-4-5-6, or the same number repeated four times, like 7-7-7-7.

It runs directly in the browser with no download, signup, ads, or payment.

You can also play the official version here:

https://numberchain.app