Starting point — pull a thread

Books Like Project Hail Mary: Smart, Hopeful Science Fiction

If you loved Project Hail Mary by Andy Weir.

Project Hail Mary is comfort food for the curious: one person, an impossible problem, and the joy of figuring it out. If you want that blend of real-feeling science, high stakes, and unexpected warmth, these reviewed science fiction adventures scratch exactly that itch.

Why these match

  • space
  • survival
  • first contact
  • problem solving
  • discovery

Quick answer

What should you read after Project Hail Mary?

Start with Leviathan Wakes, The Three-Body Problem, or Golden Son (Red Rising Book 2). They are the closest matches in our reviewed catalog; the full list below explains where each recommendation overlaps and where it goes its own way.

Updated August 2026

Cover of Leviathan Wakes by James S. A. Corey

Pick 01 · Top match

Leviathan Wakes

by James S. A. Corey

4.6/ 5Outstanding

Leviathan Wakes opens The Expanse with a missing-girl case and a salvage crew that stumbles onto something that could end the solar system. Like Project Hail Mary, it pairs hard-SF plausibility with genuine page-by-page momentum — capable people solving escalating problems in a universe whose rules bite back. Where Weir gives you one resourceful mind, Corey gives you a noir detective, a wisecracking ship's crew, and a system-wide conspiracy. For that same 'one more chapter' propulsion at a grander scale, start here.

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On the shelf

Cover of The Three-Body Problem by Cixin Liu

Pick 02

The Three-Body Problem

by Cixin Liu

Fans of Project Hail Mary hooked by real physics and a civilization-scale problem will recognize the engine here, even as Liu plays it darker. First contact built on game theory and hard science, with the deepest jolts coming from ideas rather than action.

Cover of Golden Son (Red Rising Book 2) by Pierce Brown

Pick 03

Golden Son (Red Rising Book 2)

by Pierce Brown

4.6/ 5Outstanding

Project Hail Mary runs on one person solving an impossible problem with whatever's on hand. Golden Son runs hotter: Darrow goes undercover among the very Golds he swore to destroy, and Pierce Brown turns political chess into something closer to a knife fight. Less lab-bench ingenuity, same relentless forward pressure and a cast willing to bleed for the plan.

Cover of Ancillary Justice by Ann Leckie

Pick 06

Ancillary Justice

by Ann Leckie

4.3/ 5Excellent

Ann Leckie’s award-sweeping debut trades Project Hail Mary’s lone-astronaut ingenuity for something stranger: a warship narrator reduced to a single body, hunting the emperor who destroyed her. The problem-solving pleasure here is more political than mechanical, but the space-opera scale and the slow-burn payoff will feel familiar.

Cover of A Memory Called Empire by Arkady Martine

Pick 07

A Memory Called Empire

by Arkady Martine

4.2/ 5Excellent

Martine offers the same cerebral pleasure Project Hail Mary takes in a hard problem, only the puzzle here is political. An ambassador arrives at a devouring empire carrying her dead predecessor inside her skull, and palace intrigue sharpens into a genuine thriller for readers who love thinking their way through.

Cover of Children of Time by Adrian Tchaikovsky

Pick 09

Children of Time

by Adrian Tchaikovsky

Project Hail Mary made alien intelligence feel real and earned, and Tchaikovsky chases that further with an uplift experiment that turns a planet of spiders into a civilization. It is rigorous, ambitious speculative biology across deep time, built for readers who want a mind that is genuinely strange.

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Common questions

Finding your next read

What makes these books similar to Project Hail Mary?
The strongest shared threads are space, survival, first contact, problem solving, discovery. Each recommendation is chosen for a specific overlap in tone, theme, character, or reading experience rather than genre alone.
Are all of these books reviewed?
Yes. Every recommendation links to a complete Book of the Day review with our score, verdict, and guidance on who will enjoy it.

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