Cosmos Lines Game

Cosmos Lines is a quiet puzzle game from Insality Games about filling a grid one line at a time. Each numbered dot marks the start of a line with a fixed length, and the puzzle is figuring out how to stretch every line across the board so they all fit together without crossing.

There's no timer and no penalty for thinking. Levels get harder gradually as the grids grow and the arrangements get tighter, but a level only ends when you actually solve it — the cosmic art and soft music are there to keep it relaxing rather than tense.

Controls

Click and drag from a numbered dot to draw its line; on phone or tablet, do the same with a finger. That's the whole interaction.

Tips

• Start with the dots that only have one obvious path — locking those in first narrows down the harder ones.
• A dot's number is the exact length its line must be, not a maximum, so a line that's too short or too long won't fit even if it looks close.
• If a level has you stuck, use the built-in hint rather than guessing repeatedly — since each line has one exact fit, trial and error burns time without teaching you much.

It suits slow, one-level-at-a-time sessions more than fast reflex play.