I had been kicking around the idea for some kind of space themed dice game for a while. I thought it would be a really nice metaphor for what actually happens when galaxies are formed. The dice represent balls of matter floating around the universe. Sometimes they bump into other balls of matter and become stuff.
I decided to design the game around the “press your luck” genre. The concept of these games is usually pretty simple. Some things are good to roll and some things are bad. The goal is to roll as many good things as you can before rolling a bad thing and resetting your score. The first person to get X good things is the winner.