Orbiter Space Flight Simulator Mods -

Before adding spacecraft, these core mods improve the engine and environment:

: Often voted a "must-have," this spaceplane features complex systems while remaining beginner-friendly. Orbiter Space Flight Simulator Mods

: A highly realistic recreation of the Space Shuttle for advanced users. Before adding spacecraft, these core mods improve the

: A popular, slightly simpler alternative to NASSP for flying Apollo missions. Before adding spacecraft