If you were drawn to Xenocide for its probing of morality, identity, and the nature of sentience—especially through Ender's internal struggles and the ethical dilemmas surrounding the descolada virus—you'll find The Dispossessed equally thought-provoking. Shevek's journey between two radically different societies explores free will, utopia, and the boundaries of self and community with a depth that will leave you pondering long after you turn the last page.

If you appreciated the intricate worldbuilding and nuanced depiction of alien life and culture in Xenocide—especially the exploration of the Pequeninos and their unique biology—Children of Time will captivate you. Tchaikovsky crafts an astonishingly rich alien civilization, following the rise of intelligent spiders over millennia, and challenges you to think about communication, empathy, and what it means to be 'alien'.

If you enjoyed the sprawling, multi-threaded narrative of Xenocide, which juggles the perspectives and ambitions of Ender, Valentine, Qing-jao, and others, Revelation Space delivers a similarly ambitious tapestry. With a cast of driven characters and intricately woven plots set across light-years, Reynolds’ novel offers the same sense of epic scale and interlocking destinies.

If the hard science, speculative xenobiology, and intellectual rigor of Xenocide—from the physics of faster-than-light travel to the biology of the descolada—were highlights for you, then Blindsight is a must-read. Watts blends first-contact suspense with cutting-edge neuroscience and evolutionary theory, raising challenging questions about intelligence, communication, and the limits of human understanding.

If you loved the rich, layered worldbuilding in Xenocide—from the politics of Starways Congress to the cultural rituals of the Pequeninos—Dune offers an unparalleled immersion into a galactic empire shaped by ecology, religion, and power. Herbert’s meticulously crafted societies and their interplay will draw you in just as Card’s did, with a sense of wonder at the sweep of imagined worlds.