From the back of the book:

Dead Worlds Lie Dreaming

Beneath the dirt of fallen worlds lie the bones of forgotten empires and the relics of people now vanished into legend. Countless wonders lie silent, awaiting the hands of starfaring adventurers and the curiosity of fearless investigators. What glorious citadels and eldritch marvels remain undiscovered by humanity in the present age, and what miracles lie in the silent tombs of ancient alien kings?

Dead Names provides a Stars without Number GM with the tools to build these lost races and their magnificent works. With the resources of this book, GMs can quickly and easily fabricate the strange denizens of a lost world and flesh out their ruins and strongholds with the details that help make for exciting play.

The stress of creating fresh content can wear down the most diligent GM. Dead Names eases that strain with worthy tools for a demiurge.