Galaxy Builder Home Page

"Galaxy Builder is a program which simulates the evolution of a galaxy and its intelligent life over the course of 10 billion years. Stars form, age, and supernova, spreading metals for use in future stars. Planets appear; life starts on some planets; some life develops intelligence. Intelligent cultures face a number of threats, but can develop star travel and visit nearby systems. When several starfaring cultures exist at the same time, they will interact, forming alliances or having wars. "