Yes, CosmosLines is completely free to play online.

How to play CosmosLines?

You can play directly in your browser using keyboard, mouse, or touch controls.

Can I play CosmosLines on mobile?

Yes, it works on phones and tablets.

CosmosLines

A game that tests brain power and IQ. The level will provide the player with multiple number dots as the starting point of the route and the corresponding color path grid, and the player needs to start from the starting point and pass through the path grid of the corresponding number to complete the corresponding number of squares. Paths of different colors cannot be crossed.