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Walking to Aldebaran

Adrian Tchaikovsky

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Similar in characterization + relationships

These books are ranked using the characterization + relationships labels extracted for Walking to Aldebaran. Books rank higher when they are close on every selected axis.

Characterization labels used: astronaut protagonist, snarky narrator, sarcastic voice, British protagonist, everyman hero, unreliable protagonist, anti-hero, isolated protagonist, possibly unhinged narrator, sympathetic protagonist, self-deprecating character

Relationships labels used: crew separation, lost alone, imaginary companion, reader addressee, colleague relationships, first contact encounters, human-alien contact, survival dependency, community under stress

This does not mean the books share the same plot, setting, quality, or difficulty. It means their characterization + relationships embeddings are close.

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Solitude

Dean M. Cole · 2016 · Dimension Space

After a wave wipes out nearly all life on Earth, two survivors in space and on the ground race to find each other.

Why this is here

Characterization labels: military protagonist · astronaut protagonist · physicist · helicopter pilot · aviator · competent survivor · impulsive protagonist · lazy protagonist · frustrated hero · gallows humor · problem solver · character growth · flawed protagonists

Relationships labels: romance · rescue relationship · isolated companionship · survivor bond · male-female pairing · partner dynamic · trust · mutual dependence · united by crisis · long-distance communication

Semantic match: ranked by characterization + relationships

Distance: 0.1701

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The Forever Life

Craig Robertson · 2016 · The Forever

An immortal astronaut in an android body must scout alien worlds to find humanity a new home before Earth is lost.

Why this is here

Characterization labels: cocky protagonist · snarky protagonist · immortal protagonist · android body · fighter pilot · astronaut · explorer · conflicted hero · sarcastic AI · irritable AI

Relationships labels: man and AI · companionship · rivalry · crew dynamics · alien contact · romance subplot · power struggle · sibling-like banter · human-alien relations

Semantic match: ranked by characterization + relationships

Distance: 0.1794

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Return From the Stars

Stanisław Lem · 2005

An astronaut returns to an Earth transformed by time and a peace-driven social experiment, and struggles to belong.

Why this is here

Characterization labels: astronaut protagonist · outsider protagonist · physically imposing man · emotionally unstable man · socially alienated man · morally compromised protagonist

Relationships labels: romance subplot · problematic courtship · coercive relationship · marital tension · crew camaraderie · outsider vs society

Semantic match: ranked by characterization + relationships

Distance: 0.1815

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Paradise-1

David Wellington · 2023 · Red Space

A disgraced space agent and an odd crew race toward a silent colony, only to find an escalating nightmare in deep space.

Why this is here

Characterization labels: special agent · detective · doctor · pilot · robot · sentient AI · misfit crew · ragtag crew · disgraced protagonist · flawed protagonists · loner scientist

Relationships labels: former lovers · found family · crew dynamics · buddy team · workplace hierarchy · parent-child shadow · trusted companion · team under stress

Semantic match: ranked by characterization + relationships

Distance: 0.1842

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Exit Strategy

Martha Wells · 2018 · The Murderbot Diaries

A rogue security unit races home to rescue a respected human ally while evading a powerful corporation.

Why this is here

Characterization labels: snarky protagonist · introverted protagonist · socially anxious · paranoid attention to detail · competent hero · self-aware AI · emotional growth · antihero to hero · autonomous construct · tactical genius · technical genius · self-deprecating · relatable outsider

Relationships labels: found family · friendship · loyalty · protective bond · trust · human-AI bond · crew reunion · companionship · mutual respect · friend-or-owner ambiguity

Semantic match: ranked by characterization + relationships

Distance: 0.1858

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Beacon 23

Hugh Howey · 2015 · Beacon 23

A war-scarred beacon keeper in deep space faces isolation, breakdown, and choices that could affect an entire war.

Why this is here

Characterization labels: PTSD survivor · war veteran · anti-hero · unnamed protagonist · isolated protagonist · sarcastic narrator · damaged hero · emotionally wounded character · cynical character · unreliable protagonist · self-questioning character · hermit

Relationships labels: companionship · romance · love story · ex-girlfriend · loneliness · dependency · human contact · war comrades · conflict between sides · friendship

Semantic match: ranked by characterization + relationships

Distance: 0.1866

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The Man Who Fell to Earth

Walter Tevis · 1976

An alien comes to Earth to save his dying people, but human loneliness and self-destruction derail his mission.

Why this is here

Characterization labels: alien protagonist · fragile protagonist · genius · outsider · introverted · lonely · alcoholic · depressed · sympathetic antihero · scientist · government agents

Relationships labels: friendship · mentor relationship · scientist relationship · human contact · alienation · isolation · dependence · power imbalance

Semantic match: ranked by characterization + relationships

Distance: 0.1867

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Nameless Things

Ernest Jensen · 2025

A breakup hike in a Colorado caldera turns into a brutal survival fight when a meteor unleashes deadly worms.

Why this is here

Characterization labels: gay protagonist · breakup grief · everyman hero · flawed protagonist · flat characters · unlikable characters · disposable characters · ensemble cast · survival group · child character · dog character · character-by-role · trauma response

Relationships labels: friendship · camping companions · romantic breakup · group dynamics · shifting alliances · fraying bonds · survival solidarity · protective instinct · community under stress · caretaking

Semantic match: ranked by characterization + relationships

Distance: 0.1878

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Orbital

Samantha Harvey · 2023

Six astronauts orbit Earth for one day, and the view forces them to confront beauty, distance, time, and loss.

Why this is here

Characterization labels: astronauts · cosmonauts · highly trained professionals · multinational crew · isolated characters · reflective characters · homesick characters · homesick · sentimental · underdeveloped characters · one-dimensional characters · individual backstories · grieving character · crew as collective · characters at a distance

Relationships labels: crew bonds · family separation · long-distance family ties · coworker solidarity · interdependence · shared mission · homesickness · collective living · human connection · loss of loved one · temporary community

Semantic match: ranked by characterization + relationships

Distance: 0.1888

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The Ultimate Hitchhiker's Guide to the Galaxy

Douglas Adams · 1996 · The Hitchhiker’s Guide to the Galaxy

A bewildered man is swept into an absurd galaxy-spanning saga after Earth is destroyed for a cosmic bypass.

Why this is here

Characterization labels: everyman protagonist · anti-hero · depressed robot · quirky side characters · memorable cast · lovable misfits · humanist characters

Relationships labels: friendship · travel companions · found family · alien friendship · crew dynamics · companionship · rescuer relationship · group ensemble

Semantic match: ranked by characterization + relationships

Distance: 0.1910

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The Sea in the Sky

Jackson Musker · 2020

Two astronauts on a near-future mission to Enceladus search for life while isolation, risk, and doubt mount.

Why this is here

Characterization labels: wisecracking protagonist · marine biologist · astronaut · veteran pilot · grieving character · female scientist · skeptical protagonist · lonely explorer

Relationships labels: two-hander · crew bond · friendship · partnership · mission dependence · conflict with authority · earth-crew communication · romantic absent

Semantic match: ranked by characterization + relationships

Distance: 0.1914

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Infinite

Jeremy Robinson · 2017 · Infinite

A damaged FTL mission strands one man in an endless, reality-bending fight to survive, love, and understand what’s real.

Why this is here

Characterization labels: programmer protagonist · hacker · scientist crew · engineer crew · immortal protagonist · crazy crew member · AI entity · female love interest · competent protagonist · lonely protagonist · mad antagonist

Relationships labels: friend betrayal · crew massacre · romantic obsession · forbidden love · AI companionship · loneliness · survival dependency · male-female tension · power imbalance · found companion

Semantic match: ranked by characterization + relationships

Distance: 0.1922

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