One-stroke stargazing
Cosmos Lines
Draw the route through space
Connect celestial nodes in one continuous route and solve calm, space-themed line puzzles.
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How to play
Start with the essentials
- Step 1. Start at a marked node and trace a continuous line through the puzzle.
- Step 2. Connect the required numbered or colored points in the correct order.
- Step 3. Plan the route before crossing into a dead end, especially on larger grids.
Controls
Take control of Cosmos Lines
Drag with a mouse or finger to draw a connected route through the grid.
Use the player toolbar to restart or enter fullscreen. If a game does not respond, click or tap inside the player first.
Mission briefing
A quiet route through a large universe
Cosmos Lines combines simple one-stroke rules with a patient cosmic mood. Each grid asks you to link its glowing nodes in one uninterrupted route, keeping the focus on observation and planning.
The early puzzles teach the language of colors and numbers, then wider boards turn each choice into a small routing problem. It is an easy game to enter and a comfortable one to linger with.
One continuous line
Trace a single route through every required point without leaving the puzzle unfinished.
Read the clues
Numbers and colors reveal the intended connection order.
Calm cosmic focus
The spacious starfield presentation makes each compact puzzle feel unhurried.
Gameplay gallery
Cosmos Lines gameplay
Game information
Before your next round
- Platform
- Web browser · mouse or touch
- Game view
- Portrait
- Categories
- Space Games for Kids
Games are loaded from an external provider and may display third-party ads. If something is not working, report a problem with Cosmos Lines.
Beyond the game
Keep your curiosity in orbit.
Take a closer look at real worlds, then return for another mission.
A field guide to our eight neighboring worlds.
✦ToolsCompare two worldsSee how size, distance, and years measure up.
✦Quick answers
Frequently asked questions
A few things worth knowing before you start another round of Cosmos Lines.
01Can I play in my browser?
Yes. The player opens directly on the page without an account or download.
02Does the layout work on mobile?
Yes. Check this game’s controls and orientation above. Some games are easier to play with more screen space.
03Can I restart the game?
Yes. Use the restart control in the player toolbar whenever you want a fresh round.
04Where can I find similar games?
Use the Similar Games section directly below the hero area.
Ready to play?
Cosmos Lines is waiting at the top of the page. Start another round whenever you like.