What game is this???????????????

i'm pretty sure it was mmo....but i don't remember any online people....so idk....but it was with a spaceship in space, but you could land on planets, but i remember it was only a demo and it wouldn't let me land, but that was the most awesome game ever....not the best graphics, but i remember you could sell parts of the ship for others, and it wasn't some click game, it was spaceships.....awesome!!!....can you tell me the name???