For decades, the spacefaring species of Known Space have battled over the largest artifactNand grandest prizeNin the galaxy: the all-but-limitless resources and

A brand-new novel set in Niven's Known Space, two hundred years before the discovery of the Ringworld.

Fleeing the supernova chain reaction at the galactic core, the Puppeteers of the Fleet of Worlds seek a way to survive among enemies and crises.

Winner of the Hugo and Nebula Awards for best novel Four travelers come to the ringworld. . . Louis Wu: human and old; bored with having lived too fully for far

Welcome to a world like no other. The Ringworld: a landmark engineering achievement, a flat band 3 million times the surface area of Earth, encircling a distant