A space puzzle game where you create galaxies. Discover cosmic surprises and over 60 endings. Complete the ending collection to unlock Endless Mode, and see how far your own galaxy can grow.

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Planned Release Date: December 2026

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About This Game

Grab a planet. Give it an orbit. Grow a galaxy.


Catch a drifting planet with your mouse, guide it toward an orbit, and let go. PLANETOON is a space puzzle game where a simple action can set a whole universe in motion.

Choose where to welcome each planet and how far to spread your orbits. Every placement helps shape the galaxy taking form before you.

Nurture life. Watch it reach for the stars.


Life can emerge on your planets, grow into civilizations, and reach out to other worlds. Some may even leave their home planet and embark on a journey of their own.

Watch the planets turn, and follow the changes unfolding in the universe you helped create.

Beyond the next orbit, something unexpected.


Planets, UFOs, black holes. A variety of celestial objects and visitors brings unexpected encounters and changes to your galaxy.

Some rare phenomena can only be found as you extend your orbits farther out. A beautiful arrangement of planets, a surprising encounter: each discovery gives you another idea to try in your next galaxy.

Over 60 endings. More space to create.

Guide your galaxy toward 12 billion years of history. How you nurture it, and the events you encounter, can lead to over 60 different endings.

Collect every ending to unlock Endless Mode, then keep building beyond 12 billion years.

A galaxy of your own, shaped by your hands.

Supported Platforms

Supports Windows and macOS.

Streaming and Gameplay Videos

Feel free to stream PLANETOON and create or share gameplay videos. Monetization is allowed. You do not need to contact us or request permission in advance. We would appreciate it if you could include a link to the game in your video or stream description.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI tools were used during development for coding assistance, pre-generated audio, and translation. No content is generated by AI during gameplay.

System Requirements

Windows
macOS
    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i3-4xxx / AMD FX-4xxx (or better)
    • Memory: 4096 MB RAM
    • Graphics: DirectX 11 compatible GPU (Intel HD 4000+, GT 730+, HD 7750+)
    • DirectX: Version 11
    • Storage: 500 MB available space
    • Sound Card: DirectX compatible
    Recommended:
    • OS: DirectX compatible
    • Processor: Intel Core i5-8xxx / AMD Ryzen 5 2xxx (or better)
    • Memory: 8192 MB RAM
    • Graphics: GeForce GTX 1060 / Radeon RX 580 (or better)
    • DirectX: Version 12
    • Storage: 1024 MB available space
    • Sound Card: DirectX compatible
    Minimum:
    • OS: macOS 12 Monterey or later
    • Processor: Apple Silicon or 64-bit Intel processor
    • Graphics: Metal-compatible GPU
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
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