If you were captivated by the sweeping, epoch-spanning story and the sense of history in The Palace of Eternity, you'll find A Canticle for Leibowitz equally engrossing. Its narrative traverses centuries, following monks preserving knowledge through cycles of civilization’s destruction and rebirth, and examines the consequences of war and memory. The book's epic scope and thoughtful meditation on humanity’s future will resonate with you.

If you appreciated the clear, driving objective of Mack Tavernor’s struggle against the Collon in The Palace of Eternity, The Forever War will draw you in with its own relentless mission. William Mandella’s battle across time and space against an alien enemy echoes the sense of duty, sacrifice, and personal toll seen in Shaw’s novel.

If the depiction of the Collon and the richly conceived alien societies in The Palace of Eternity fascinated you, The Left Hand of Darkness is a must-read. Le Guin crafts the planet Gethen with exquisite detail, immersing you in a society with unique customs and perspectives, and exploring the challenges of cross-cultural understanding.

If you were moved by Mack Tavernor’s internal conflict and struggle with purpose in The Palace of Eternity, Dying Inside will captivate you with its intense psychological depth. Silverberg’s story follows David Selig, a man losing his telepathic abilities, and delves deeply into his psyche as he confronts identity, loss, and the meaning of existence.

If you found yourself reflecting on the deeper questions of war, peace, and the individual’s place in the universe in The Palace of Eternity, The Dispossessed will satisfy your appetite for philosophical science fiction. Through the journey of physicist Shevek as he traverses two radically different societies, Le Guin explores the nature of freedom, society, and ethical responsibility.