Mossu is a botanical cubesat terrarium floating through the real solar system, with you and your friends as it's caretakers! Hands on plant growth, cubesat construction and exploration in your shared, persistent craft. Go from Earth orbit to the Martian surface!

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Mossu's core experience is already playable: grow plants, build your cubesat, drive rovers, and explore Earth orbit, the Moon, and Mars. Early Access helps us expand the game with new destinations, plants, modules, and community-driven improvements.”

Approximately how long will this game be in Early Access?

“We expect Mossu to remain in Early Access for 6-12 months, depending on community feedback and development progress.”

How is the full version planned to differ from the Early Access version?

“The full version will expand Mossu with additional destinations, plant species, construction modules, missions, multiplayer features, and visual improvements.”

What is the current state of the Early Access version?

“Early Access currently includes:

-5 destinations
-Earth orbit, the Moon, and Mars
-Cooperative multiplayer
-Cubesat construction and rover exploration
-Research, missions, trading, and progression systems
-Fast travel between major landmarks
-10,000+ stars with accurate sky motion
-Fully playable plant growth and care systems

The core gameplay systems are complete, stable, and ready for player feedback.”

Will the game be priced differently during and after Early Access?

“Yes. Mossu will be available at a discounted price during Early Access, with a planned price increase at full release.”

How are you planning on involving the Community in your development process?

“Community feedback will play a major role in development. We'll gather suggestions through Steam and Discord and use them to help shape future plants, modules, missions, and features.”
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Download Mossu Demo

This game is not yet available on Steam

Planned Release Date: Q4 2026

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About This Game

Grow Real Plants

Build Your Cubesat

Explore Earth, Moon & Mars[

Features:

  • Grow 14 scientifically modeled plant species

  • Build and expand your own cubesat habitat

  • Drive physics-based rovers across real worlds

  • Explore Earth orbit, the Moon, and Mars

  • Prune, water, and shape living ecosystems

  • Play solo or cooperatively with friends

  • Research, trade, and complete missions

  • Create mods for plants, modules, and assets

System Requirements

    Minimum:
    • OS: Windows 10
    • Processor: Intel i7 9700k
    • Memory: 16 GB RAM
    • Graphics: Intel UHD 630
    • DirectX: Version 11
    • Storage: 2 GB available space
    Recommended:
    • OS: Windows 11
    • Processor: Intel i7 9700k
    • Memory: 16 GB RAM
    • Graphics: Nvidia GTX 970
    • DirectX: Version 12
    • Storage: 2 GB available space