If you are a fan of space games, so SkyLine Gems is game for you. After the explosion in spaceship, you are the only one who survived. And now you have a long flight through the galaxy. You have a limited supply of oxygen. But there some good news - after the explosion oxygen cylinders scattered across the galaxy you could find and use them to support your life. Beware of comets or destroy them with weapons. Collect gems, they will be useful.