Build from parts
46 procedural parts. Tanks stretch by dragging, fairings must fit what they cover, wings lift on a real airfoil curve. Mass and price come from the shape you draw.
Multiplayer
One solar system for everyone
29 worlds
ONE SKY.
EVERYONE
IN IT.
The first multiplayer rocket game with real orbital mechanics. Every player builds, launches and flies in one persistent solar system, on one clock that never stops. Your ship is still up there when you close the app, and so is everyone else’s.
iOS · Android · macOS · Windows · Steam · Free preview · One shared world
The big one
The first multiplayer game of its kind
Rocket-building games with real orbital mechanics have always been played alone. Orbital Frontier is one solar system for everyone: one persistent world, one clock, one server that runs it whether or not anybody is looking.
World · shared
One world, one clock
Every player’s ships share the same solar system and the same real-time clock. It runs while you sleep and while the app is closed. A burn planned for tomorrow happens tomorrow.
Fleet · persistent
Your fleet is real
Every orbit you settle into is written to the world server, not to a save file. Come back on any device and your ship is exactly where physics left it.
Server · authoritative
One referee for everyone
Launches are priced, pad limits checked, contracts judged and achievements paid by the server, never by your phone. Everyone flies under the same rules in the same sky.
Shared solar system
Never pauses
Real orbits
Dock your ships
Cross-platform
What you actually do
Build a rocket, fly it, and find out whether the numbers on the hangar card were telling the truth. They were.
Orbits that are orbits
Every ship is six Keplerian elements and a clock. Patched conics, maneuver nodes, encounters. A ship you leave tumbling is still tumbling when you come back.
Shared, and never paused
One solar system for every player, on one real-time clock nobody can stop. Your capture burn happens at 03:40 whether you are awake or not, so you set a reminder and the phone wakes you.
Meet the Meek
Astronauts, scientists, engineers, tourists. Each has a G-tolerance, blacks out past it, and grows only by coming home. A scientist aboard makes every reading achievement pay more.
Credits, contracts, discovery
Lighting the first stage costs the ship's price. A ship recovered whole refunds what came back. Fly tourists to a different orbit or a different world, and get paid for it — the board always keeps a seat's worth of work on it. Discovery buys the tech tree, and you earn it by measuring places nobody has measured — every biome, every band of air, every world.
Dock, undock, rendezvous
Target another of your ships, close the range on thrusters, latch. A docked pair is one plumbing network. A stage you drop keeps flying, and it is solid.
What is in the shared world
Counted from the game's own data files on the day this page was built. Every one of them is editable online by the operator, so they only ever go up.
World telemetry · build 0.132.2
46
Parts in 9 categories
29
Worlds: star, 11 planets, 17 moons
34
Tech nodes
147
Achievements
73
Contract templates
7
Crew roles
Scale
Kerbin-sized on purpose
Earth is 600 km across the radius, every planet sits at its real distance ratio, and gravity is the real surface gravity. Isp, mass fractions, drag and heat stay inside chemistry's range. The gas giants are the one written-down cheat: a giant's mass without a giant's grip, so their moons are reachable.
Latest TestFlight release
“Show Me What You Got”
Build 21 · The Manual, The Campus, The Crew. Every build names itself and writes its own What's New from the changelog it carries, in the only voice that fits.
The loop
A flight, end to end
1
Build in the hangar
Snap parts onto attachment points, mirror the fins, order the stages. The card under the ship tells you its mass, its Δv and what it will cost to light.
2
Light the first stage
That is the moment you pay. The server prices the ship against the catalog, checks your pad can take it, and spends your credits. Standing on the pad is free.
3
Fly it on rails
Burn, coast, plan a node, cross a sphere of influence. Between burns the ship rides its conic exactly, so time warp is a leap and not a guess.
4
Bring it home
Come down under a canopy, on legs, on a heat shield. A ship standing whole on the ground is recovered for the price of what is still aboard. A crash refunds nothing.
Live telemetry · Earth · stage 1 active
Liftoff · +200 cr1 Meek aboard
Twenty-nine worlds, one real shape
The real solar system's layout: the same planets in the same order at the same relative distances, with the same families of moons. The names are the Meeseeks'. Earth, its Moon and Mars keep theirs.
Twostrokes
Existence
Earth · 1 moon
Mars · 2 moons
Schmeckle
Flurbo
Meeseeks Prime · 4 moons
The Box · 4 moons
Cronenberg · 3 moons
Squanch · 2 moons
Pluto · 1 moon
Take a pad in the shared world.
It is early, it is free, and it changes most days. Pick your platform, build something, and put it into the same solar system as everyone else.
iPhone & iPadTestFlight
AndroidGoogle Play
macOSDownload
WindowsDownload
SteamWishlist
Store links go live with the next build