Rocket engine simulation software
Simulation software for people who build rocket engines
Loren Aerospace builds Meco Rocket Simulator and the lorenlib simulation library. Our mission is to democratize access to space.
Our story
Our mission is to democratize access to space. We see a future where owning a space launch vehicle is as easy as owning a car.
To enable this future, we build simulation technology first: software that lets anyone design a rocket engine, fire it, and read what comes back. Manufacturing robotics and machine learning are where that road leads; simulation is where it starts.
What we build
Meco Rocket Simulator — a rocket engine design simulator, available now in Early Access on Steam. You set the geometry, you fire the engine, and you read the results on live graphs. The engine model behind it is written up in a preprint, DOI and all: 10.5281/zenodo.21864769.
lorenlib — the C++ simulation library that powers Meco, opening up for non-commercial and academic collaboration.
Who we are
Loren Aerospace Ltd is an independent company in London, built by Dannie Sim. Meco is developed in the open — the development blog goes back to 2021.
