George Kristiansen

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Astronomy Calculators
Free
Get a collection of small and simple calculator utilities.
Windows
Perilune - 3D Moon Landing Simulator
Free
Perilune is a 3D lunar landing flight simulator game with procedurally generated terrain and realistic physics.
Android
Orbit-Vis
Free
Orbit-Vis: Real-Time Orbit Simulation Made Easy
Windows
George Kristiansen Moon lander
Free
An Accessible Apollo-Inspired Lunar Landing Simulator
Windows