Make it yours.
Find the parts. Build the rocket. Spend your hard-earned money on an idea that just might work.
A CO-OP SPACE SANDBOX / IN DEVELOPMENT
A backyard. A crew. An unreasonable ambition.
Build something that probably shouldn’t fly.
Then see how far you can take it.
BUILT TOGETHER. TAKEN FURTHER.
EST. ON EARTH ↗01 / THIS IS THE PROGRAM
A VERY SMALL START.Your launchpad is a backyard. Your parts have seen better days. Your crew? Just as ambitious as you are.
Scavenge a coastal town, take on contracts, and turn a pile of junk into your next great escape. From the first wobbly liftoff to a colony on another world, build your space program together.
Find your next frontierFind the parts. Build the rocket. Spend your hard-earned money on an idea that just might work.
Count down with your crew. Reach orbit, dock with an outpost, and make a new world feel like home.
One host. Up to three friends. A shared program, a robot companion for every player, and stories worth bringing home.
02 / CHOOSE YOUR HORIZON
LEAVE A LITTLE FURTHEROne program. An expanding universe.
See where your ambition takes you.
A coastal town full of useful junk, odd jobs, borrowed wheels, and your next big idea. This is home. For now.
4 × 4 KM COASTAL TOWNA look at BSP’s worlds. The game is in active development; features and visuals continue to evolve.
03 / YOU’RE NOT GOING ALONE
Meet B.O.L.T. Your robot companion.
Your most dependable questionable-decision witness.
From helping around the yard to carrying out an ordered plan, B.O.L.T. is part of the crew. Give a request, let your companion get to work, and keep your eyes on the next horizon.
READY WHEN YOU ARE, COMMANDER.

TRANSMISSION FROM THE BACKYARD
Actual in-game footage. Actual unreasonable ambition.
04 / FROM THE WORKSHOP
A FEW THINGS WE’RE BUILDING.
Rail cannons, missile silos, and a strong opinion about visitors.

One telescoping, spinning drill head. Asteroids have been warned.

A small recon car with a telescopic sensor mast. Nosy by design.

A flight deck, an island, and a lot of parking.

Short legs, one scanner, and a job mapping asteroids.

Two gantries, repair arms, and somewhere to fix what you broke.

Eight radial arms, one tall spire, and missiles on watch.

Tilts from hover to airplane flight, with troops aboard.

A glass-topped pressure shell for colony buildings with a view.

Hauls ore from the miners in detachable container modules.

A tracking dish, twin turrets, and a war room aboard.

Four rotors, one cannon, and two missile launchers.
Development art. These are Blender renders of new work, and not everything shown is in the game yet. Features and visuals continue to evolve.
05 / THE FLIGHT PLAN
IN ACTIVE DEVELOPMENTBackyard Space Program is an independent game in development for Windows. The ambition is big, and the program keeps growing.
Explore the worlds, meet your companion, and watch the film for a look at the journey so far.
Explore the universeA co-op space sandbox that starts in a coastal town. Scavenge, earn money through contracts, build rockets, and travel with your crew to orbit, the Moon, Mars, and beyond.
Yes. BSP supports one host and up to three clients. You share a space program, and each player has a B.O.L.T. companion.
BSP is in active development. A public download and store link haven’t been announced here yet. This site showcases the game; it does not take orders or collect signups.
The film and the backyard, orbit, Moon, and Mars captures are real game footage. The orbital opening, B.O.L.T. studio animation, Belt panel, and Workshop images are promotional Blender renders or development art, and not everything in the Workshop is in the game yet. Each is labelled on the page.