If you relished the intricate speculation on posthumanity and the clash between Shapers and Mechanists in Schismatrix, you'll be fascinated by Diaspora. Greg Egan weaves a dense tapestry of future societies—both digital and biological—delving into radical technological possibilities and their impact on consciousness. The novel's opening, with the birth of a citizen in a virtual polis, mirrors the sweeping technological scope and intellectual rigor you enjoyed.

If you were drawn to the ideological struggles and political maneuvering between the Shapers and Mechanists in Schismatrix, The Dispossessed offers a profound look at two opposing civilizations. Le Guin crafts a tale of competing utopias, focusing on Shevek, a physicist caught between the anarchist world of Anarres and the capitalist planet Urras. The nuanced political intrigue and culture clash will resonate with your tastes.

If you appreciated the philosophical undercurrents and existential questions woven through Lindsay's journey in Schismatrix, you'll be captivated by Severian's labyrinthine odyssey in Shadow of the Torturer. Wolfe’s dense, allusive prose and the protagonist’s quest for meaning amidst a decaying world provide a rich tapestry of philosophical reflection and ambiguity.

If the sweeping scope of Schismatrix, spanning centuries and solar systems, thrilled you, The Algebraist will deliver the same sense of cosmic scale. Banks introduces a galaxy teeming with alien civilizations, ancient secrets, and sprawling political machinations. Fassin Taak’s journey through the gas giant Dwellers’ society unfolds against a backdrop of galactic war and monumental stakes.

If you reveled in the richly imagined, factionalized future of Schismatrix, you’ll be entranced by the world of Shora in A Door Into Ocean. Slonczewski constructs a fully realized, water-covered world inhabited by an all-female society with its own language, technology, and ethos. The novel’s immersive worldbuilding and social exploration provide the same depth and sense of discovery.