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.
Perform a soft landing on the Moon. Start from lunar orbit and touch down gently on the surface. Master the balance between descent speed and fuel consumption.
Change your orbit altitude from 400 km to 800 km using a Hohmann transfer. Learn how to efficiently raise your orbit.
Learn how orbital period relates to altitude. Understand Kepler's Third Law and how to calculate when you'll arrive somewhere.
Understand the six cardinal directions in space: prograde, retrograde, normal, anti-normal, radial, and anti-radial. Learn how velocity changes affect your orbit.
Journey from the red planet to the largest object in the asteroid belt. Ceres is a dwarf planet with potential subsurface oceans, making it a prime target for exploration. Execute a direct transfer and achieve orbit insertion around this mysterious world.
Execute an OSIRIS-REx style mission to a near-Earth asteroid. Rendezvous with asteroid Bennu, match its velocity precisely, perform a touch-and-go sample collection, then return your precious cargo to Earth. Every gram of primordial material is priceless for science.
"He had used more than nine-tenths of his fuel and had boosted in the wrong direction."
— Vernor Vinge, The Peace War (1984)