From Galaxies to Planet: Instant Universe
I’ll confess. I love random planet and system generator tools in roleplaying games. There I was as a young boy with the now classic science fiction RPG called Traveller, and I was able to roll up via a set of tables a planet. Size. Population. Technology level. Type of government. It provided a logical way to help game masters (GM) both create interesting worlds on the fly and help avoid our own creative traps of repeating the same planets with different scenery.
Additionally, I think it fired as much creativity as not, something that the creator of Traveller, Marc Miller, has noted. How does that small population world on a planet with a tainted atmosphere, high security level but rather liberal government function and look. The dice could result in interesting combinations the encouraged creative thinking.
Of course, the GM could ignore whatever results she wanted and choose at whim — something I, too, certainly engaged in. Nonetheless, I had a certain thrill every time I rolled up a planet and awaited its outcome.
Every edition of Traveller has had some planetary generator. A number options have shifted over time to reflect new understandings and science, but the core remains the same: grab some six-sided dice and generate the famous Traveller hexadecimal code for the description of a planetary system.