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81% positive of 16 · Positive · Live from Steam
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A rocket engine design sim with real physics. Design, build and test engines hands-on: wire pumps, injectors and nozzles on a node graph. Live graphs and 3D hardware answer every change. Learn step-by-step in 14 guided missions, or take complete control in free build. Recreate the Merlin 1D.
- Developer
- Loren Aerospace Ltd
- Publisher
- Open Space Launch Foundation
- Release date
- Jul 14, 2025
- Install size
- 1 GB minimum
- Platforms
- macOS · Windows
- Genres
- Indie, Simulation, Strategy, Early Access · All
- Steam app ID
- 1583540









