This game is sort of a social experiment. At first, it was designed as a game where you hitchhike to various planets by writing its name on a sign. On some planets, an alien would give you clues to help you go further and find the dream planet.
Since you could write anything random on the sign, you could end up on an empty planet. How boring...
Rather than leaving it at that, I altered the game to allow people to occupy empty planets. So as you play the game, you could own a few planets, write your own adventure and even draw your own aliens.
Note: On some planets, some creatures give out medals.