Light of Nova puts you in a commander's uniform. You start with one mother ship. Upgrade it and fly around the galaxy to capture and defend planets that will come to make up your own personal empire.
Space is a deadly place and Light of Nova puts you smack dab in the middle of it. Starting off with your own mother ship you'll need to travel the galaxy, capturing planets to make up your own personal empire.
You aren't alone in this universe, however. Other players will try to take what's yours. You'll need to defend your ground and make allies to help stave off your foe's forces. Join and form alliances, all the while upgrading and expanding your forces until you're the dominant power in the universe.