LunCoSim is an open-source, collaborative digital twin of the solar system. Built for high-fidelity space mission planning, engineering, and training, it enables multiple participants to design and operate complex systems in a shared 3D environment.
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Empowering everyone to architect the future of space, LunCoSim delivers professional-grade simulation fidelity at every scale—from individual rovers to entire lunar cities—through five core technological pillars:
Real-time collaborative engineering where multiple participants interact in the same high-fidelity environment. Whether you are driving a rover, monitoring telemetry, or managing orbital maneuvers, the simulation remains synchronized and authoritative.
We leverage Universal Scene Description (USD) for 3D world composition. This ensures industrial-grade interoperability with Pixar USD and NVIDIA Isaac Sim, allowing you to author once and simulate everywhere.
Native integration of Modelica provides high-fidelity 1D physics for critical subsystems. Calculate power draw, thermal rejection, and life support levels with professional-grade mathematical certainty.
We use the next-generation SysML v2 standard as our structural blueprint. Every entity and its state is defined by an engineering model, serving as the ultimate "Source of Truth" for the simulation.
Monitor your missions using the XML Telemetry and Command Exchange (XTCE) standard. Compatible with professional tools like YAMCS and NASA OpenMCT, LunCoSim provides real-time, standardized hardware telemetry.
- Desktop & Browser Support: High-performance native execution on Linux/Windows and accessible via web browsers (links coming soon).
- Headless-First Architecture: Core simulation logic is decoupled from rendering, enabling high-speed automated validation and massive parallel Monte Carlo analysis.
- Planetary Precision (f64): All spatial math and physics use double-precision floating point (f64) for absolute stability across the scales of a lunar base or the entire solar system.
- Hotswappable Plugins: A highly dynamic architecture where every feature — from flight software to physics integrators — is a modular plugin that can be swapped without a restart.
- Rust Toolchain (Stable)
- Git
Clone the repository and run the simulation sandbox:
git clone https://github.com/LunCoSim/lunco-sim.git
cd lunco-sim
cargo run --release -p lunco-client --bin rover_sandboxLunCoSim is built as a modular multi-crate workspace:
lunco-core: Headless simulation core and base traits.lunco-celestial: Planetary mechanics, SOI handling, and environments.lunco-physics: Precision f64 physics integration via Avian3D.lunco-telemetry: XTCE-based monitoring and signaling.lunco-fsw: Flight software and subsystem logic.lunco-client: Visual client for Desktop and Browser (WASM).lunco-avatar: User presence, perspective, and authority management.
The original Godot 4 implementation of LunCoSim is still available on the main-godot4 branch.
Want to contribute? We follow a strict TDD and Documentation mandate. Apply here to join our team! Check our Constitution to understand our core principles.