Start with a small ship. Mine asteroids. Get resources. Transport. Build bigger ships. Fight with other ships. Harvest parts. Optimize your ship power supplies, weapons, thrusters, shields. Find light speed engines & move to other parts of the galaxy. Build your own base, setup defenses. Resist to alien waves. Have the best base. Test you base against real players. Go to fight other player bases. Be a hero.
You have a small mining ship and work as mining asteroids. Sometimes, you get stuff, from old ships crashed on asteroids. One day, you find a transmitter, transmitting signal from what seems a big alien ship. You start looking for this ship...