Real orbital mechanics. Pull back, aim, burn — and pray your gravity assist actually works.
The orbital puzzle game for people who want to fly across the solar system but only have five minutes.
Keplerian orbits, eccentric trajectories, SOI transitions. Not a cartoon — a simulation. Every burn costs delta-v, every gram of fuel matters.
Each crux is a self-contained orbital puzzle. Waiting for coffee? Nail a Hohmann transfer. On the bus? Try a two-burn gravity assist. No save files, no 40-hour campaigns.
Pull back to set your burn vector. Release to fire. Feels like Angry Birds, works like mission control. Your intuition is the flight computer.
Each mission is a single orbital problem. Pick one.
Learn how to change your orbital inclination. You're in an equatorial orbit and need to reach a polar orbit. This maneuver is crucial for satellite positioning and interplanetary transfers.
Master the art of orbital rendezvous. You need to match orbits with a target spacecraft and approach within close range. This is essential for docking operations and space station visits.
Learn what an orbit actually is and why objects stay in orbit instead of falling down. Discover the fundamental relationship between velocity and gravity.
Learn how orbital period relates to altitude. Understand Kepler's Third Law and how to calculate when you'll arrive somewhere.
Learn to plan missions by calculating total delta-V requirements. Master the art of fuel budgeting for complex multi-stage missions.
Launch from Earth and dock with the International Space Station in its 51.6-degree inclined orbit. Time your launch window correctly and perform a precise rendezvous.
"It was the precision of his eye and hand that betrayed him, not his physical intuition. Delays of a thousandth of a second in a cushion shot could cause a miss at the destination."
— Vernor Vinge, The Peace War (1984)