Spaceflight Simulator

Spaceflight Simulator lets you run a space program, designing rockets, planning launches and flights, attempting landings, deploying payloads and exploring the Solar System. You assemble custom spacecraft from components with real-world counterparts, then learn through trial and error to build vehicles suited to each mission and navigate them to planets and moons.

Design and fly rockets

Parts have technical specifications, including mass and aerodynamics, that affect how a rocket behaves. Engines model thrust and fuel consumption, which determine how much payload you can carry safely. You can build multistage vehicles, choose how they separate and time secondary burns to reach a suitable trajectory.

Build a presence in space

Launch satellites and multiple rockets, build exploration rovers and construct space stations. Your world persists across missions as you travel long distances and expand your operations through the Solar System.

Rocket components

The available parts include:

• Fuel tanks in 20 sizes and configurations
• Engines and thrusters, including 6 propulsion systems and a reaction control system
• Aerodynamic components, including 13 fairings with a range of nose and side cones
• Capsules, probes, payload systems, separators and docking ports
• Landing systems: legs, parachutes and wheels
• Skins for personalizing rockets

Solar System destinations

Destinations have their own gravity and atmospheric conditions, shaping the challenge of landing. You can explore:

• Earth, your starting point, and the Moon, its celestial companion
• Mercury, the smallest planet and closest to the Sun; Venus, with an extremely dense, hot atmosphere; and Mars, with a thin atmosphere
• Phobos, Mars' inner moon, with rough terrain and low gravity, and Deimos, its outer moon, with extremely low gravity and a smooth surface
• Ceres, the largest body in the asteroid belt, and the Captured Asteroid orbiting Earth
• Jupiter and its moons Io, Europa, Ganymede, Callisto and Thebe, each with distinct terrain and landing difficulty
• Saturn and its moons Titan, Enceladus, Rhea, Iapetus, Dione, Tethys, Mimas and Pan
• Uranus and its moons Miranda, Ariel, Umbriel, Titania, Oberon and Puck
• Neptune and its moons Triton, Proteus and Naiad
• Pluto and its moons Charon, Nix and Hydra, at the edge of the Solar System