A free app for Android, by Flying With Gauss.
You are Flying With Gauss, an alien life forms a black hole on the Earth and becomes a space entity that can travel through space and time. You are one of the first of the alien life forms, and you have just arrived on Earth. You are looking for a way to escape from the Earth, and you find that the only way is to build a spaceship to leave the planet. As you build the spaceship, you also find out that the Earth is not the only planet in the universe, and you are going to have to find a way to escape from the other planets as well.
You need to build your spaceship in a way that it can carry out the function of an interstellar space ship, and that means that you need to get the best materials in the universe. You find that the best materials in the universe are the elements that are the most abundant and the most useful, so the first thing you need to do is to find out what elements are available on the planet you are on.