Galaxies around us are full of invaders and it is high time to clean them up. In Nebula you choose a hero, collect space junk to improve your level and gather as much gears (game currency) as possible to upgrade your player / weapon stats in the hangar. Do not be discouraged with failure, experiment with new builds to find the one that suits you best. You can come back stronger and show those space rogues who is a sheriff in this