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Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.
Want something that feels chaotic and replayable the way Aerospace Engineering Sandbox does? These games line up well for what comes next.
Build your own airplane, then fly it. Balance fuel, weight, speed and cargo space, take jobs hauling goods across a colorful open world, and research better parts to reach islands farther out. No danger, no timers, just you, your designs and a lot of sky. If a flying rooster with no wings works, the physics will allow it.
Replayable, Relaxing
Snap parts together into any aircraft you can imagine, then climb into the cockpit and find out if it actually flies.
Chaotic, Replayable, Relaxing
Build rockets from real-world parts, launch them, and find out the hard way why landing is the tricky part. A 2D space sandbox with honest physics, the whole Solar System to reach, and no punishment for exploding. Trial, error, one more rocket.
Chaotic, Replayable, Relaxing
Physics that punish a badly shaped wing and reward a good one. Hard to learn, deeply satisfying, and every plane you build is your own.
Replayable
Build rockets, planes, cars and whole planets from parts you stretch, reshape and paint, then fly them with realistic physics. Automate flights with a visual programming language, run an aerospace company in career mode, or just tinker in the sandbox. Simple to start, deep enough to keep a space nerd busy for hundreds of hours.
Replayable, Relaxing
Archean is a first-person engineering sandbox where physics does the judging. You gather ore, craft parts, bolt together planes and rockets, wire their power and fluids, then program them in XenonCode. Planets are full-sized, orbits are real, and if it flies, it is because you built something that flies.
Also in Co-op · Chaotic, Replayable, Relaxing
Design and build your own aircraft, take to the skies of Aviora, and battle mechanical beasts. Explore an oceanic archipelago, discover hidden blueprints, complete dangerous missions, and improve your aircraft to face ever greater threats.
Replayable
This is a realistic space flying simulator where you and up to 30 online player fly around the solar system
Also in Co-op · Relaxing
fly a small aircraft exploring an infinite world!
Relaxing
Bolt together a spaceship from thousands of parts, wire up its systems, then fly it in first person to 15 strange planets. Solo or with up to four friends, every mission asks something new of your ship, and every mistake becomes a story. Build it, launch it, and find out what happens.
Also in Co-op · Chaotic, Replayable, Relaxing
Build working ships, stations and planetary bases block by block, then fly them, crash them, mine with them and blow pieces off them. Real mass, power, oxygen and gravity keep every design honest. Best with friends and a tolerance for learning things the hard way.
Also in Co-op · Chaotic, Replayable
Become a master plane designer and soar through the skies with your genius aircraft. The levels are relaxing, beautiful and challenging. Some levels will test your piloting skills while others your engineering. Learn to optimize aerodynamics as you play and unlock new parts and perks as you progress
Replayable, Relaxing

Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.

Snap together planes and cars from parts, then take them out to fly, race or see how spectacularly they fall apart.

Explore the moon of a gas giant with a bush plane. Do deliveries and challenges to unlock upgrades and more aircraft.

Take flight in a seaplane flight simulator through a rugged world where you are responsible for the care and maintenance of your plane.

Put your engineering and problem solving skills to the test in this sandbox physics building game!

Design aircraft from scratch, haul cargo across a bright open world, and tinker until even the strangest designs take flight.

Archean is a first-person engineering sandbox where physics does the judging.

A flight simulator built on real orbital physics, set in the Noren star system.

Design your own aircraft from scratch, test it in flight, and see how well your engineering holds up.

Fly detailed cockpits over a photorealistic world, from calm glider rides to combat in a fighter.

Build rockets, planes, cars and whole planets from parts you stretch, reshape and paint, then fly them with realistic physics.

Take off in minutes, fly low to stay off the radar, and settle it with a nuclear shockwave if you have to.

Design aircraft from scratch, haul cargo across a bright open world, and tinker until even the strangest designs take flight.

Take the scenic route or blow stuff up. Fly warbirds and jets across a colorful open world, discover airfields and unlock new aircraft.

This is a realistic space flying simulator where you and up to 30 online player fly around the solar system

Take off anywhere on the planet and fly through real-time weather, at whatever pace suits you.

Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.

Design and build your own aircraft, take to the skies of Aviora, and battle mechanical beasts.

Snap together planes and cars from parts, then take them out to fly, race or see how spectacularly they fall apart.

Take flight in a seaplane flight simulator through a rugged world where you are responsible for the care and maintenance of your plane.

Explore the moon of a gas giant with a bush plane. Do deliveries and challenges to unlock upgrades and more aircraft.

Nautikins rule a vibrant ocean world! Build boats, planes, helicopters, and more to explore islands filled with wonder and peril.

Master the art of extreme flight in Exosky, a surreal, physics-based sim where risky stunts means higher scores and better data.

Take any of dozens of aircraft anywhere on Earth, from calm sightseeing hops to medevac runs and firefighting, at your own pace.