Culture and civilization on the Outworlds themselves, however, took a variety of paths. 'Strange planets breed strange customs', said the famed explorer H. Zair Toadsticker, and the customs of the Outworlds are no exception. Midgard, the oldest of the Outworlds, has a bizarre multi-species society and even more bizarre cities. Dandalore, a vast swamp covering the only continent, is inhabited by a race of humans who consider the bog as a sort of god. Chavyry is a small dense world with a thin atmosphere; the population lives in surface domes and in the lowlands, where enough air has collected to make the atmosphere breathable without respirators. Agar is a watery globe, with only a few islands above sea level. The human settlers, all employees of a single food-processing company, make their living by skimming nutritious slime-algae off the ocean surface. These are only some of the worlds in the Outworlds.

There are a few other, more primitive, races of non-humans on out-worlder planets, such as the Finned Ones of Agar and the cavern-dwelling Kobolds of Kessex. These aborigines are generally ignored by the humans on their worlds, as there is plenty of space for all on undeveloped, under populated planets.