The Guide to Larry Niven’s Ringworld

Ringworld: The Guide

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You are about to encounter the largest articfact in all Known Space, and very possibly in the universe itself. How large is that? Pretend the the Eartch, as it orbits the Sun, leaves a track - a track a million miles wide. If the sun were stationary, the result would be a ring, a ring around the sun, a ringworld with the surface area of three million Earths.

Such a world exists. It was built millions of years ago by an unimaginably powerful race who then seeded it with species from all over the galaxy - and disappeared. Think of it: a land area of three million Earths populated width all the incredible races of Larry Niven’s Known Space. A lot can happen in a place like that. You’re going to need a Guide …