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Planetarium - Rasmussen's Guide: Ice Planet Rasmussen (SF)Click to magnify
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Planetarium - Rasmussen's Guide: Ice Planet Rasmussen (SF)


Welcome to Rasmussen’s Guide, a tool for those wanting more science in their science fiction.

It is for GMs running campaigns who need an alternate world with a logical ecology. Admit it, game worlds need internal logic, after all. Living animals do not spontaneously generate from nonliving matter, nor do they magically appear out of thin air. All living things metabolize, reproduce, grow, and adapt. They do not do these things in a vacuum. This planetary guide is a concise look at these lifeforms as they might evolve on a variety of planets, moons and celestial objects, using each world’s surface gravity to define its primary vertebrate Superclass and maximums.

Ice Planet Rasmussen

From space at a distance, Rasmussen looks like a dirty ice ball orbited by a single, reddish moon. On a closer look still from orbit, the planet is mottled gray and white with pure white polar ice caps, except for a narrow deep blue equatorial ocean that encircles the planet. Upon even further closer examination, the planet’s few clouds partially obscure the heavily cratered ice world, which has a surface also heavily peppered by space dust. A narrow green band of thick forest runs along both shores of the dividing ocean. On the surface, a few white, water vapor clouds appear in the blue sky. The predominately icy white surface is peppered by black meteor powder, rare stony meteorites, rarer iron meteorites, and the rarest stony-iron meteorites.

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File Last Updated:
March 17, 2022
This title was added to our catalog on July 20, 2018.