Mossu

A Cubesat Terrarium You Can Always Rebuild! 

Mossu is a drifting cubesat terrarium where you explore real places and care for real plant species with your friends. Build your craft, expand your rover, and travel between Earth, the Moon, and Mars in a cozy, physics‑driven sandbox.

Grow scientifically‑grounded plants inside your orbital garden while navigating real terrain outside. Drift through microgravity, descend to the surface, and drive rovers across crater fields with true weight, balance, and tumbling behavior.

Every plant in Mossu is modeled with accurate morphology and physiology. They respond to climate, crowding, temperature, and shared resources. From warm orbital growth to cold Martian nights. Prune, water, feed, and guide them from seed to pollination with tiny drones and space bugs.

Start in a 10 cm cubesat and expand in any direction. Build rooms, stilts, terraces, or tall wobbling towers - everything you place is yours to move, rearrange, or rebuild at any time. Mossu’s construction system is expressive, physical, and never locks you into a layout.

Play solo or cooperatively as you explore real‑scale Earth orbit, the Moon, and Mars. Hunt for resources, complete missions, trade, research, and customize your craft together. Mossu’s systems are tactile, interconnected, and always grounded in real rules.

Features

• 14 real plant species with accurate growth and physiology
• Climate, crowding, and resource‑sharing simulation
• Cubesat terrarium building with full ownership and movable modules
• Real rover physics with weight, balance, and tumbling
• Microgravity drift and orbital motion
• Hands‑on plant care: prune, water, feed, clean
• Real‑scale Earth orbit, Moon, and Mars
• Cooperative multiplayer across the solar system
• Research, Comms, Shop, Mission, and Construction panels
• Simple modding support for plants, modules, and assets

Mossu is in early access so we can shape the experience together with player feedback! We have our initial destinations and systems landed, our roadmap looks straight forward:
-More destinations, plant species and modules
-Deeper systems such as static base building and large scale multiplayer servers

What you get access to now:
-Demo: Earth Orbit/Moon surface
-Early Access (Paid): Earth Orbit, Moon Orbit & Surface, Mars Orbit & Surface, all future updates included.