If you were fascinated by the intricate time travel and alternate future wars in The Legion of Time, you'll love The End of Eternity. Asimov’s classic follows Andrew Harlan, a member of the secretive organization called Eternity, who alters reality to steer humanity’s fate. The book’s exploration of paradoxes, causality, and the far-reaching consequences of changing the past will scratch the same itch for epic struggles across timelines.

If you enjoyed the relentless drive and urgent mission at the heart of The Legion of Time, you’ll be riveted by The Stars My Destination. Gully Foyle’s single-minded quest for revenge powers this breakneck adventure across space and society, echoing the high-stakes, do-or-die momentum that made Williamson's novel so compelling.

If you were drawn to the sweeping, cosmic scale and the battle for humanity’s destiny in The Legion of Time, Lord of Light will captivate you. Zelazny’s novel unfolds across generations and worlds, pitting powerful, godlike beings in a struggle that shapes civilizations—delivering that same sense of epic grandeur and high-concept adventure.

If the richly imagined alternate futures and societies of The Legion of Time drew you in, you’ll be equally enthralled by The Left Hand of Darkness. Le Guin transports readers to the icy world of Gethen, where political intrigue and social customs are as alien as any future history, offering the same immersive, well-constructed sense of place.

If you appreciated the focus on societies, ideologies, and the personal ramifications of vast, world-shaping events in The Legion of Time, you’ll find The Dispossessed deeply rewarding. It explores the clash of two contrasting civilizations through the eyes of physicist Shevek, delving into philosophy, politics, and the meaning of freedom in a way that complements Williamson’s exploration of alternate realities.