If you were captivated by the sweeping, interconnected storylines that traverse both Earth and Mars in Ilium, you'll be fascinated by Anathem. Stephenson crafts a richly detailed world with an epic scope, following Fraa Erasmas and his companions as they journey across their world and even beyond, wrestling with cosmic mysteries and philosophical quandaries. The scale and ambition of the story, with its multiple cultures and epochs, will resonate with your love for Simmons's vast storytelling.

If you enjoyed the multifaceted storytelling and the interplay between characters like Hockenberry, Mahnmut, and Orphu in Ilium, you'll be drawn in by the ensemble cast of Hyperion. Here, seven pilgrims each tell their own tale, weaving together their motivations and backgrounds. The dynamic between these varied characters and their intertwining destinies creates a narrative tapestry you won't want to leave.

If you were awed by Simmons's detailed reimagining of Mars and the far-future Earth, you'll be equally enthralled by Red Mars. Robinson meticulously constructs the politics, science, and ecology of humanity's colonization of the Red Planet, delving into the lives of a diverse group of settlers as they struggle to build a new world. The depth and realism of the worldbuilding will satisfy your craving for immersive detail.

If the philosophical undertones in Ilium—from musings on fate to the nature of gods and humanity—struck a chord with you, Permutation City will be a mind-bending treat. Egan probes deep questions of identity, simulation, and existence through the stories of people who upload their minds and challenge the boundaries of reality itself. It's a cerebral and thought-provoking journey into what it means to be alive.

If you were drawn to the way Ilium reimagines Greek myths and infuses them into a futuristic setting, you'll love American Gods. Gaiman masterfully blends ancient deities with modern America, following Shadow as he becomes entangled in a war between old gods and new. The inventive use of mythology and its collision with contemporary life echoes the mythic reinvention you admired in Simmons's work.