Lobbies · prototype · v0.1 · made for gamers

Released March 15, 2026
Travel through the solar system in your own spaceship! The motion of each celestial body is accurately reproduced by the Kepler equation.
Steam · 24 reviews · 88% positive
The Keplerian Space Discovery Lobby
Ver.2026-06-13
Launch Physics ImprovementsThe flight dynamics calculation during launch has been changed from a rotating reference frame to numerical integration in an inertial reference frame. By giving the spacecraft the launch site's rotational velocity as its initial velocity at liftoff, the Coriolis effect a…
Monthly Report May 2026
Thank you for your continued support of “Keplerian Space Discovery.”Here is an update on our progress in May and our goals for June.May ProgressOne major change we made was switching the calculation of the selected spacecraft’s orbit from using Kepler’s equations to using the equations of motion.As…
Ver.2026-05-22
We have fixed an issue where the orbital normal direction was reversed when performing an orbit-matching maneuver.We have added tooltips to the buttons on the spacecraft control panel.
via Steam