Are you a gamer? If yes, download and play this game called spaceflight simulator. The game is really simple to learn and play, but it's also a lot of fun. Players construct their individual rockets, add different engines, fuel tanks, etc., check out for explosions, make it to earth orbit, then either round the Planet or move on to the moon, Jupiter, or even the moons of Mars as their next mission. watch Spaceflight Simulator played on PC for more information.