Spaceflight Simulator 2 is a realistic aerospace simulation game. Building on the heritage of the first game, SFS2 is an immersive and rewarding sandbox for the hardcore spaceflight enthusiast and the casual space fan alike. Rocket science is hard, but it's never been so much fun! As you iterate on your designs and practice your flying skills, you'll learn real-world concepts like staging, orbital mechanics, specific impulse, and more. Key Features Design and build your own rockets, spaceships and more. Fly your vehicles around the Solar System with realistic orbital and aerodynamic physics. 120+ unique parts to build your spacecraft with, from engines and boosters and fuel tanks, to crew capsules and heatshields and space station modules, to landing legs and parachutes and rover wheels. A detailed, beautiful, and fully 3D recreation of our Solar System to explore. Astronauts that can fly your ships, live in your space stations, drive your rovers, perform spacewalks, and plant flags on the alien worlds they visit.