Science Fiction · Speculative Fiction · Existential Themes

3 hand-picked science fiction, speculative fiction, and existential themes books curated by NextBookAfter.

Science FictionSpeculative FictionExistential Themes
Cover of Roadside Picnic

Roadside Picnic

Roadside Picnic captures the essence of Rogue Moon's existential dread and psychological unraveling through a tale of desperate stalkers navigating deadly alien zones, probing human identity and mortality in the face of incomprehensible cosmic indifference.

Cover of The First Fifteen Lives of Harry August

The First Fifteen Lives of Harry August

For fans of Cloud Atlas's reincarnation motifs and philosophical musings on time and human agency, this novel offers a gripping exploration of reliving lives to alter history's course, blending sci-fi intrigue with deep existential questions.

Cover of The First Fifteen Lives of Harry August

The First Fifteen Lives of Harry August

For fans of Recursion's mind-bending time loops and reality-warping stakes, this novel delivers a thrilling cat-and-mouse game across multiple lifetimes, exploring memory, regret, and the philosophical weight of altering history without the exact mechanics of memory tech.