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Built on ISFDB, Wikipedia, Wikidata and Open Library. Curated reading orders carry their reasoning on the page; the rest follow publication order. Data sources & licenses

© Loreful · data: ISFDB · CC BY

More like Oxygen Level Zero

anchored on:science fictionspace colonizationmarsnear futuremiddle gradevirtual reality+1 more

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Mood

The mood the book leaves you in.

  • The reading experience is propelled by journeys, exploration, and physical risk; excitement and forward momentum dominate over dread or introspection.
  • Joy and loss are deliberately mixed; the resolution grants characters something real while taking something else away, leaving warmth and sorrow together.
  • The book demands work from the reader — dense prose, difficult structure, unfamiliar ideas, or morally uncomfortable material — as part of its intended effect.
  • Grim events, cruelty, or despair dominate the atmosphere, and the book does not soften them with comfort or comic relief.
  • The atmosphere is quietly unsettling — wrongness, unease, and the uncanny pervade the book without necessarily escalating into overt horror.
  • The book is built to move the reader; character feeling is foregrounded and major scenes aim at a strong emotional response.
  • Humor is a primary aim and the prose plays for laughs — comic situations, wit, or dialogue produce sustained comedy, not occasional levity.
  • The book insists that things can improve; effort and decency are shown to matter, and the arc bends toward better outcomes even through hardship.
  • The book teaches as it goes — real facts, history, science, or craft are conveyed in enough depth that learning is part of the reading experience.
  • The book is designed to uplift and motivate, presenting perseverance or achievement in a way that invites the reader to aspire or act.
  • The overall register is cheerful and easygoing; stakes are kept gentle and the book avoids dwelling on pain or dread.
  • Withheld information drives the experience; the book sustains enigmas and secrets the reader wants resolved, whatever its genre.
  • The book is contemplative and inward-looking, giving more weight to thought, memory, and meaning than to external events.
  • The book works as comfort reading — low tension, a soothing pace, and an atmosphere the reader can unwind in.
  • Grief, loss, or melancholy set the dominant register, and the book lets sorrow stand rather than resolving it into comfort.
  • Sustained suspense is the point; the book keeps the reader braced for what happens next through danger, pressure, or impending revelation.
  • Playful invention and charm define the register — fanciful conceits, light absurdity, and a narration that delights in its own oddity.

About

What the story runs on.

  • Stories in which extraterrestrial beings are central — as characters, cultures, or the object of the plot.
  • Stories about venturing into space to explore — survey missions, astronauts, and the frontier of the unknown beyond Earth.
  • Stories structured as a quest — a journey undertaken to find, deliver, or destroy something of great import.
  • Stories in which staying alive against nature, catastrophe, or scarcity is the central problem.
  • Stories in which a friendship — its making, testing, or loss — is the emotional center.
  • Stories of growing up — a young protagonist crossing from childhood into adult knowledge and responsibility.
  • Stories about who a character truly is — self-discovery, doubled lives, and the search for a self.
  • Stories in which belief, doubt, and religious life are the central subject, from crises of faith to life inside a religious community.
  • Stories driven by maneuvering for power — factions, conspiracies, and statecraft conducted in shadow.
  • Stories about rising against rulers — uprisings, resistance movements, and revolutions and their aftermaths.
  • Stories in which war itself is the subject — combat, occupation, and what warfare does to soldiers and civilians.
  • Stories organized around investigating a killing — the case, the clues, and the pursuit of the killer, in any genre's clothing.

Shelf

Where it sits in the library.

    • Fiction built on magic or other supernatural elements that have no scientific explanation.
    • Secondary-world fantasy at large scale, where the fate of nations or the world turns on the protagonists' struggle.
    • Fantasy set in a recognizably modern city or contemporary world where the supernatural intrudes on everyday life.
    • Fantasy that blends in horror's atmosphere and imagery, keeping a fantastical frame around grim or frightening material.
    • Action-driven fantasy following warriors or rogues with personal stakes against sorcerous threats, rather than world-spanning conflicts.
    • Fantasy set in a real historical period or a close analogue of one, with magic woven into the era.
    • Fantasy in which protagonists cross from the ordinary world into another world through a portal or similar passage.
    • Fiction that retells or reworks a traditional fairy tale in a new form or setting.
    • Fantasy drawing directly on myths, legends, and folklore, retelling them or building on their figures and logic.
    • Fantasy of ghosts, vampires, shapeshifters, psychics, and similar phenomena, usually set in an otherwise ordinary world.
    • Fiction mixing science-fictional trappings with overtly magical or impossible elements in one setting.
    • Low-stakes fantasy emphasizing comfort, community, and everyday pleasures over conflict and peril.
    • Speculative fiction of pervasive moral ambiguity, violence, and cynicism that rejects heroic conventions — fantasy and SF alike.
      • Fiction that extrapolates from science and technology — future societies, space travel, or speculative inventions — within at least nominally natural laws.
      • Science fiction of interstellar scope — starships, galactic polities, and adventure across star systems.
      • Science fiction committed to scientific rigor, where technical plausibility constrains the story.
      • Science fiction centered on armed forces and warfare, told largely from a military point of view.
      • Science fiction of networked, corporate-dominated near futures, pairing high technology with social decay.
      • Science fiction styled on nineteenth-century steam-powered technology, often in a Victorian or pseudo-Victorian setting.
      • Fiction depicting an oppressive or catastrophic society, presented as a warning.
      • Fiction set after civilization's collapse, following survivors in the ruins of the old world.
      • Fiction in which characters move between past and future, and the mechanics or consequences of that travel drive the plot.
      • Fiction exploring a world where a historical event went differently and history diverged from ours.
      • Science fiction about humanity's first encounter and communication with an alien intelligence.
      • Science fiction in which extraterrestrial forces attack or occupy Earth and humanity resists.
      • Fiction whose primary aim is to frighten or unsettle the reader through dread, menace, or the monstrous.
      • Horror of vast, indifferent, incomprehensible entities before which humanity is insignificant, in the Lovecraft tradition.
      • Horror of decaying houses, buried family secrets, and oppressive atmosphere in the Gothic literary tradition.
      • Horror centered on hauntings and the returning dead.
      • Horror located in the mind — paranoia, obsession, and unreliable perception rather than external monsters.
      • Horror built around the reanimated dead and survival amid their outbreaks.
      • Horror defined by explicit, transgressive gore that refuses to cut away from violence.
      • Speculative fiction of the strange and uncanny that resists both natural explanation and standard genre categories.
      • Fiction organized around solving a crime or puzzle, typically following an investigator toward the identification of a culprit.
      • A puzzle-first mystery that lays out clues so the culprit's identity can be deduced before the reveal.
      • Crime fiction of moral ambiguity, fatalism, and hard-edged style, set among the corrupt and the doomed.
      • A mystery following the realistic routines of police work — forensics, interviews, and case-building.
      • A gentle mystery with an amateur sleuth, a small community, and violence kept off the page.
      • A mystery set in a past era, where the investigation works within that period's methods and society.
      • Fast-paced fiction driven by imminent danger, pursuit, or high-stakes conspiracy, built to sustain tension.
      • A thriller of espionage — agents, tradecraft, and intelligence services in conflict.
      • A thriller centered on lawyers and the courtroom, where litigation carries the suspense.
      • A thriller driven by detailed contemporary or near-future technology, often military or scientific.
      • A thriller whose tension comes from mental states and manipulation between characters rather than external action.
      • Fiction whose central plot is a romantic relationship and its development toward an emotionally satisfying resolution.
      • Romance in which one or both partners are supernatural beings, blending fantasy elements into the love story.
      • A fantasy-romance hybrid in which the romantic arc and the fantasy plot carry equal weight.
      • Romance set in a past era, with courtship shaped by the period's society and manners.
      • Romance set in the present day, without supernatural or historical elements.
      • Fiction set in a real past period, where the historical setting materially shapes characters and events.
        • General and literary fiction emphasizing prose style, character interiority, or formal ambition over genre plot conventions.
        • Fiction in a realistic world where magical events occur and are treated as ordinary, in the tradition of Latin American literature.
        • Fiction that ridicules people, institutions, or society in order to criticize them.
        • Fiction of dreamlike, irrational imagery and logic that breaks from realistic representation.
        • Fiction that plays with narrative convention through metafiction, fragmentation, and self-reference.
        • Fiction propelled by journeys, exploration, and physical peril, where action and survival carry the plot.
        • Adventure fiction of ships and seafaring — naval engagements, voyages, and life at sea.
        • Fiction of the American frontier West — gunmen, ranchers, and lawmen, typically in the late nineteenth century.
        • Fiction centered on soldiers, campaigns, and the experience of warfare, historical or imagined.
          • Fiction written primarily to amuse, using comedic situations, wit, or parody as its organizing principle.
            • Multi-generational fiction following a family or dynasty across decades, with inheritance and kinship as the through-line.
              • Fiction whose world runs on explicit game mechanics — levels, stats, and skills that characters can see and exploit.
                • Fiction about costumed or superpowered heroes and their conflicts with comparable villains.

                Practical

                How long a commitment, whether it stands alone, and whether it has finished.

                Tap a chip to ask for it · tap again to rule it out · once more to clear. Numbers show what would be left.

                • Cover of Red Planet
                  Red Planet

                  Robert A. Heinlein · standalone novel · 1949

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                  A boy colonist on Mars takes his bouncing ball Martian pet with him to boarding school, but the new Headmaster is a controlling tyrant. Things get worse when he discovers a plot that will jeopardize all of the colonists.

                • Cover of Podkayne of Mars
                  Podkayne of Mars

                  Robert A. Heinlein · standalone novel · 1963

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                  From the back cover of the Baen 1995 edition: "Meet Podkayne Fries, a thoroughly modern Martian Ms. who thinks that Earth is not really fit for habitation and that humanity evolved in the now-exploded Fifth Planet. Poddy has one goal in life, to be the first female starship captain. She has her strategy all scoped out, and with her determination, looks and I.Q. she'll get there, never you doubt! But all work and no play would make Poddy a Dull Girl, so when a chance comes her way to travel to distant Earth via Venus with her elderly uncle, Poddy jumps at it, even if it does mean having her loathsome little brother along for the trip: Travel, Adventure, the chance to cuddle up (in a nice way) with real spaceship officers and ruthlessly pump their brains - she'll have it all. What Poddy doesn't know is that "Unca Tom" is more than her warmly supportive relative: he is also the Ambassador Plenipotentiary from Mars to the Three Planets Conference (travelling not quite incognito enough) and that certain people will stop at nothing to gain control of his vote - including kidnapping and doing terrible things to sweetly innocent Poddy Fries..."

                • Cover of Islands in the Sky
                  Islands in the Sky

                  Arthur C. Clarke · standalone novel · 1952

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                  Islands in the Sky is a 1952 science fiction novel by British writer Arthur C. Clarke. It is one of his earliest works. Clarke wrote the story as a travelogue of human settlement of cislunar space in the last half of the twenty-first century.

                • Cover of Ready Player One
                  Ready Player One

                  series · 3 books · 2011

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                  Ernest Cline's Ready Player One (2011) is set in a near-future dystopia where much of humanity escapes into the OASIS, a vast virtual-reality universe, and follows teenager Wade Watts as he chases an Easter egg hidden by the OASIS's late creator in a puzzle-based hunt worth a fortune. The 2020 sequel, Ready Player Two, picks up after Wade has gained control of the OASIS and follows him and his friends into a new quest built around a brain-computer interface the creator left behind.

                • Cover of Snow Crash
                  Snow Crash

                  Neal Stephenson · standalone novel · 1992

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                  Snow Crash is a 1992 science fiction novel by Neal Stephenson. Like many of Stephenson's novels, its themes include history, linguistics, anthropology, archaeology, religion, computer science, politics, cryptography, memetics, and philosophy.

                • Cover of Man Plus
                  Man Plus

                  series · 2 books · 1976

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                  Frederik Pohl's Man Plus follows Roger Torraway, who is surgically and cybernetically rebuilt into a post-human organism able to survive unprotected on the Martian surface, as part of a crash program to colonize Mars ahead of a predicted global crisis. The 1976 novel, which won the Nebula Award, is a clinical, unsentimental look at what such a transformation costs a person's sense of self. Thomas T. Thomas wrote the sequel Mars Plus, continuing the story of the Martian colony years later.

                • Cover of The Sands of Mars
                  The Sands of Mars

                  Arthur C. Clarke · standalone novel · 1951

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                  From the back cover of the Pocket Books first paperback printing: "The Sands of Mars is ... the story of Martin Gibson, writer of interplanetary novels, a guy who knows all the answers to space flight... at least in theory. Then Gibson actually travels on the maiden voyage of the new passenger spaceship to Mars. What he finds there... love, danger, adventure... comes with as much shock to him as it will to you and to every reader who wonders at the startling mysteries of the universe!"

                • Cover of The Door Into Summer
                  The Door Into Summer

                  Robert A. Heinlein · standalone novel · 1957

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                  From the first page of the Signet 6th printing: "An electronics engineer invents a wizard robot... only to find himself shanghaied by his ruthless partner and his gold-digging fiancee. The crafty pair forces him to submit to the "long sleep" - suspended animation for thirty years. But when he wakes up in the year 2000 A.D. the inventor makes a startling discovery. He learns that it is possible now to twist time forwards or backwards. And so he returns to the past bent on a mission... of revenge."

                • Cover of Birth of Fire
                  Birth of Fire

                  Jerry Pournelle · standalone novel · 1976

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                  Birth of Fire is a science fiction novel by American writer Jerry Pournelle. It was first published by Laser Books in 1976, and later reprinted by Baen Books. It is related to the books Exiles to Glory and High Justice, and with those two, form a starting point for the CoDominium series.

                • Cover of The Angry Planet
                  The Angry Planet

                  series · 2 books · 1945

                  completed

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                • Cover of Mars One
                  Mars One

                  Jonathan Maberry · standalone novel · 2017

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                  Go on the adventure of a lifetime with a teen and his family after they are selected to colonize Mars.

                • Cover of Artemis
                  Artemis

                  Andy Weir · standalone novel · 2017

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                  Artemis is a 2017 science fiction novel by American writer Andy Weir. It takes place in the late 2080s in Artemis, the first and only city on the Moon. It follows the life of porter and smuggler Jasmine "Jazz" Bashara as she gets caught up in a conspiracy for control of the city. The book received mixed reviews from critics.

                • Cover of The Martian Chronicles
                  The Martian Chronicles

                  series · 30 books · 1946

                  completed

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                  The Martian Chronicles (1950) is Ray Bradbury's fix-up novel, a chain of linked short stories following waves of settlers leaving a troubled Earth to colonize Mars and encountering its native Martians, before Earth itself is ultimately consumed by nuclear war.

                • Cover of Barsoom
                  Barsoom

                  series · 53 books · 1917

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                  Barsoom is a fictional representation of the planet Mars created by American pulp fiction author Edgar Rice Burroughs. The first Barsoom tale was serialized as Under the Moons of Mars in pulp magazine The All-Story from February to July 1912 and published compiled as a novel as A Princess of Mars in 1917. It features John Carter, a late-19th-century American Confederate veteran who is mysteriously transported from Earth to the dying world of Mars where he meets and romances the beautiful Martian princess Dejah Thoris. Ten sequels followed over the next three decades, further extending his vision of Barsoom and adding other characters.

                • Cover of A Fall of Moondust
                  A Fall of Moondust

                  Arthur C. Clarke · standalone novel · 1961

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                  From the back cover of the Harbrace paperback: "The action of A Fall of Moondust takes place almost a century from now when tours on the moon are a common occurrence. One of the high points of each tour is a cruise around the Sea of Thirst, a body of volcanic dust, in a specially designed vessel called the Selene On a perfectly routine voyage one day the Selene suddenly disappears. How do you locate a small tourist "cruiser" buried beneath fifty feet of dust? If you find it, how do you rescue the passengers and crew? If you are on board, how do you feel and what do you do while brave men and expert technicians join forces in a race against time? Sustained excitement, lively humor, and an engaging cast of characters make this one of Arthur C. Clarke's most intriguing novels."

                • Cover of The Rolling Stones
                  The Rolling Stones

                  Robert A. Heinlein · standalone novel · 1952

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                  The Stone family, lunar-born, technically minded, and perpetually restless, buy a secondhand spaceship and set off from the Moon on a family tour of the solar system. Teenage twins Castor and Pollux have their own side hustle in mind, planning to buy up used bicycles on Mars and resell them at a markup, but a small furry souvenir picked up along the way, a Martian 'flat cat' bought for their little brother, turns out to have habits that could sink the whole trip's finances. Robert A. Heinlein's family adventure blends hard-edged space travel with comic domestic chaos.

                • Cover of Mars, Inc.
                  Mars, Inc.

                  Ben Bova · standalone novel · 2013

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                  "How do you get to the Red Planet? Not via a benighted government program trapped in red tape. Art Thrasher knows this. He is a man with a driving vision: send humans to Mars. Thrasher has a plan. Form a 'club' of billionaires to chip in one billion a year until the dream is accomplished. A billionaire himself and the president of a successful company, it will take all his wiles and master manipulator of business and capital to overcome setbacks and sabotage--and get a rocket full of scientists, engineers, visionaries and dreamers on their way to the Red Planet"--

                • Cover of The Deep Range
                  The Deep Range

                  Arthur C. Clarke · standalone novel · 1957

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                  The Deep Range is a 1957 science fiction novel by British writer Arthur C. Clarke, concerning a future sub-mariner who works in the field of mariculture, herding whales. The story includes the capture of a sea monster similar to a kraken.

                • Cover of Between Planets
                  Between Planets

                  Robert A. Heinlein · standalone novel · 1951

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                  A teenager is pulled from his earthside boarding school when tensions rise between Earth and the Venus and Mars colonies. He is charged to bring an artifact to his scientist parents on Mars, but when hostilities break out, flights are cancelled and he is put down on Venus.

                • Cover of Armada
                  Armada

                  Ernest Cline · standalone novel · 2015

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                  Armada is a science fiction novel by Ernest Cline, published on July 14, 2015 by Crown Publishing Group. The story follows a teenager who plays an online video game about defending against an alien invasion, only to find out that the game is a simulator to prepare him and people around the world for defending against an actual alien invasion.

                • Cover of Thunder and Lightning
                  Thunder and Lightning

                  series · 4 books · 2003

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                  John Varley's Thunder and Lightning books follow the Broussard family across two generations as a backyard fusion-power breakthrough turns an eccentric Florida inventor's homemade spacecraft into the opening move of an independent human expansion to Mars and beyond. Red Thunder and Red Lightning follow the first generation's improvised trip to Mars; Rolling Thunder and Dark Lightning pick up decades later with their descendants.

                • Cover of Friday
                  Friday

                  Robert A. Heinlein · standalone novel · 1982

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                  Friday is a 1982 science fiction novel by American writer Robert A. Heinlein. It is the story of a female "artificial person", the eponymous Friday, genetically engineered to be stronger, faster, smarter, and generally better than normal humans. Artificial humans are widely resented, and much of the story deals with Friday's struggle both against prejudice and to conceal her enhanced attributes from other humans. The story is set in a Balkanized 21st century, in which the nations of the North American continent have been split up into a number of smaller states.

                • Cover of Mars Evacuees
                  Mars Evacuees

                  series · 2 books · 2014

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                • Cover of The Long Earth
                  The Long Earth

                  series · 7 books · 2012

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                  Terry Pratchett and Stephen Baxter's Long Earth series (five novels, 2012-2016) begins when a cheap, simple device called a Stepper lets people step sideways into a vast, possibly infinite chain of parallel Earths, none of which developed human civilization. The books follow a natural stepper and an AI that believes itself the reincarnation of a Tibetan repairman as they travel millions of steps out along the chain, encountering other hominid species and the dangers, ecological and social, of an endless open frontier.