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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 Quantum Force

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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 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 of lovers kept apart by law, family, faith, or station, where the obstacle to love is the plot.
  • 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 about mourning — living through the death of a loved one and what loss does to the survivors.
  • Stories in which a buried family truth — hidden parentage, crimes, or shames — surfaces and reorders the present.
  • Stories driven by maneuvering for power — factions, conspiracies, and statecraft conducted in shadow.
  • 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 Footfall
                  Footfall

                  Larry Niven & Jerry Pournelle · standalone novel · 1985

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                  When aliens travel to Earth from Alpha Centauri, differences between alien and human psychology result in an unprovoked invasion, and the resulting resistance results in the aliens' use of a devastating weapon.

                • Cover of Foundation Universe
                  Foundation Universe

                  universe · 123 books · 1940

                  Start hereFoundation · Start here

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                  There is a science that reads the future of quadrillions the way an astronomer reads the orbits of stars. It is called psychohistory, and its equations foresee something the ruling Galactic Empire cannot admit: the throne is rotting, and thirty thousand years of barbarism are coming. One man, Hari Seldon, cannot stop the fall. He can only shorten it — by seeding a Foundation of scholars at the rim of the galaxy, a fragile institution built to carry knowledge across the dark and cut the interregnum to a single millennium. This is a universe told in the register of history itself: the long view, the calm of deep time, empires measured in centuries and men measured against them. The spine is Asimov's original trilogy — Foundation, Foundation and Empire, Second Foundation — followed decades later by the sequels Foundation's Edge and Foundation and Earth and the prequels Prelude to Foundation and Forward the Foundation. Late in life Asimov braided this in with his other future histories: the Robot novels of detective Elijah Baley and his humaniform partner R. Daneel Olivaw (The Caves of Steel, The Naked Sun, The Robots of Dawn, Robots and Empire) and the early Galactic Empire novels (Pebble in the Sky and its kin), until one continuous chronicle ran from the first thinking robots to the Second Empire. Other hands extend it — the Second Foundation Trilogy by Gregory Benford, Greg Bear, and David Brin, and shared-world spinoffs such as Robot City — so the corpus sprawls beyond a single author's tidy shelf. What distinguishes it is that the drama is intellectual: crises resolved by insight, nerve, and dialogue rather than fleets and blades, each turn hinging on the hidden logic of the Seldon Plan. Begin where readers have always begun — with Foundation, and the original trilogy in publication order. The rest opens outward from there.

                • K
                  Kairos

                  series · 11 books · 1962

                  completed

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                  The Time Quintet is a science fantasy series of five young adult novels written by American author Madeleine L'Engle and made up of A Wrinkle in Time (1962), A Wind in the Door (1973), A Swiftly Tilting Planet (1978), Many Waters (1986), and An Acceptable Time (1989).

                • Cover of Space Demons
                  Space Demons

                  series · 4 books · 1986

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                  Gillian Rubinstein's Space Demons follows a group of Australian schoolkids drawn into a mysterious video game that starts pulling them physically into its world, with consequences that follow them home. The story continues across two more novels, Skymaze and Shinkei, following the same characters into further games.

                • Cover of Time Travelers Never Die
                  Time Travelers Never Die

                  series · 2 books · 1996

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                  Time Travelers Never Die started life as a Jack McDevitt novella in the mid-1990s (Hugo- and Nebula-nominated) before he expanded it into a full novel over a decade later; the novella and novel are two forms of the same story rather than a sequel. It follows a small circle of people who gain access to working time travel and use it to step into the past, in McDevitt's characteristic register of curious, history-minded science fiction.

                • Cover of Out of Their Minds
                  Out of Their Minds

                  Clifford D. Simak · standalone novel · 1970

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                  From the back cover of the first DAW printing: "Out of their minds and the force of their imagination, men have created countless beings, from demons and dragons and monsters of legend to story-book heroes and comic strip characters. What if their world were real - if vampires, devils and Don Quixote hobnobbed with Dagwood Bumstead and Charlie Brown. Such a world would have its fascinations... and its dreadful perils - if it existed. Horton Smith found out that it did exist... and that he was right in the middle of it!"

                • Cover of D. O. D. O. (Department of Diachronic Operations)
                  D. O. D. O. (Department of Diachronic Operations)

                  series · 2 books · 2017

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                  Neal Stephenson and Nicole Galland's D.O.D.O. novels center on the Department of Diachronic Operations, a covert U.S. government agency that discovers magic vanished from the world in the nineteenth century and sets out to use time travel to bring it back. The Rise and Fall of D.O.D.O. (2017) is followed by Master of the Revels, continuing the pair's earlier collaboration on The Mongoliad.

                • Cover of Hitchhiker's Guide to the Galaxy
                  Hitchhiker's Guide to the Galaxy

                  series · 16 books · 1979

                  part of The Hitchhiker's Guide to the Galaxy Universe

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                  The Hitchhiker's Guide to the Galaxy is a comedy science fiction franchise created by Douglas Adams. Originally a radio sitcom broadcast over two series on BBC Radio 4 between 1978 and 1980, it was soon adapted to other formats, including both novels and comic books, a 1981 BBC television series, a 1984 text adventure game, stage shows and a 2005 feature film.

                • Cover of Richard Forthrast
                  Richard Forthrast

                  series · 2 books · 2011

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                  Neal Stephenson's Richard 'Dodge' Forthrast novels open with Reamde, a globe-spanning thriller that starts when ransomware inside an MMORPG economy pulls Richard's extended family into a real-world hostage crisis involving hackers, jihadists and Russian mobsters. The sequel Fall; or, Dodge in Hell shifts registers entirely, following Richard's digitally preserved mind after death into an afterlife simulation built from his scanned brain. The two books share a protagonist and family but differ sharply in genre and scale.

                • Cover of Daniel X
                  Daniel X

                  series · 6 books · 2008

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                  The Dangerous Days of Daniel X opens James Patterson's science-fiction series, co-written with Michael Ledwidge, marking Patterson's return to genre science fiction in a similar vein to his Maximum Ride series. Released in 2008, it became the first of six books following the same teenage protagonist. Patterson's later collaborators on the sequels include Chris Grabenstein, Ned Rust, and Adam Sadler.

                • Cover of The Accidental Time Machine
                  The Accidental Time Machine

                  Joe Haldeman · standalone novel · 2007

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                  "Grad-school dropout Matt Fuller is toiling as a lowly research assistant at MIT when, while measuring subtle quantum forces that relate to time changes in gravity and electromagnetic force, his calibrator turns into a time machine. With a dead-end job and a girlfriend who has left him for another man, Matt has nothing to lose taking a time machine trip himself - or so he thinks."

                • Cover of Maximum Ride
                  Maximum Ride

                  series · 12 books · 2005

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                  Maximum Ride is a series of young adult science fantasy novels by American author James Patterson. The series centers on the adventures of Maximum "Max" Ride and her family, called the Flock, who are winged human-avian hybrids created at a lab called The School. The series was inspired by Patterson's earlier novels When the Wind Blows and The Lake House, which were intended for older readers.

                • Cover of TimeRiders
                  TimeRiders

                  series · 9 books · 2010

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                  TimeRiders is a series of teen science fiction novels written by Alex Scarrow. The series consists of nine books and is published by Puffin Books.

                • Cover of Evil Genius (Catherine Jinks)
                  Evil Genius (Catherine Jinks)

                  series · 3 books · 2005

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                • Cover of The Caretaker Trilogy
                  The Caretaker Trilogy

                  series · 3 books · 2006

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                  The Caretaker Trilogy is a series of science fiction thrillers with an ecological theme, written for young adults by David Klass. The first book in the series, Firestorm (2006), was the first book ever endorsed by Greenpeace and was praised by critics for its combination of entertainment value and environmental message, garnering an American Library Association (ALA) Best Book citation, a starred review from Publishers Weekly, and a favorable review by the New York Times Book Review. The story focuses on Jack Danielson, a teenager sent back from the future to save the world's oceans. Whirlwind, the second book in the Caretaker Trilogy, tells the story of Jack's efforts to save the Amazon rainforest; published in March 2008 by Farrar, Straus and Giroux. The third book in the trilogy is Timelock, published in 2009.

                • Cover of Mammoth
                  Mammoth

                  John Varley · standalone novel · 2005

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                  Mammoth is a 2005 novel by author John Varley. The book centers around the concept of time travel, and discusses the concept that there may be limits to science.

                • Cover of Needle
                  Needle

                  series · 2 books · 1950

                  completed

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                  Hal Clement's Needle follows an alien detective nicknamed the Hunter, a shapeless symbiotic being that can live inside a host body, as it crash-lands on Earth pursuing a fugitive of its own kind and takes refuge inside an American teenager, Robert Kinnaird. Together the mismatched pair must learn to communicate and cooperate, first to survive and later to track down the second alien, which has hidden inside another human in the same Pacific island community. The sequel, Through the Eye of a Needle, published nearly three decades later, continues the Hunter's story.

                • Cover of The Themis Files
                  The Themis Files

                  series · 3 books · 2015

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                  Sylvain Neuvel's Themis Files opens when a girl falls into a hole in South Dakota and lands on the palm of a giant metal hand buried underground; the trilogy picks up years later as she leads the team trying to determine what the hand is part of and why it's there. Sleeping Giants and its sequels are told almost entirely through interview transcripts conducted by an unnamed, evasive interrogator, giving the series a documentary, oral-history feel unusual for first-contact SF. The mystery escalates from an archaeological puzzle into a question of who else is looking for the same answer.

                • Cover of Jumper
                  Jumper

                  series · 6 books · 1992

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                  Jumper follows David Rice, a teenager who discovers he can teleport anywhere he's been and uses the power to escape an abusive home, only to find that ability alone doesn't solve the harder problems of finding his absent mother, building an honest relationship, or staying off the radar of people who'd exploit him. Steven Gould's series continues across Reflex, Impulse, and Exo, later following his and his wife's daughter as a second-generation jumper. A 2008 film loosely adapted the first novel.

                • 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 The Star Beast
                  The Star Beast

                  Robert A. Heinlein · standalone novel · 1954

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                  A talking alien pet has grown to the size of a small dinosaur. She repeatedly gets her teenage owner in trouble whenever she leaves the backyard, but he continues to care for her, as did his father and grandfather before him. When an alien delegation lands on Earth and demands custody, he fights to protect her.

                • Cover of Saucer
                  Saucer

                  series · 3 books · 2002

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                  Saucer is Stephen Coonts's techno-thriller trilogy beginning with Saucer (2002), continued in Saucer: The Conquest and Saucer: Savage Planet. It follows the discovery of a functioning craft buried for millennia in the Sahara desert and the test pilots and adventurers who end up flying, and fighting over, it, escalating from a buried desert secret toward wider stakes involving hostile outside interests.

                • Cover of Scott Tyler / Shifter
                  Scott Tyler / Shifter

                  series · 3 books · 2012

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                • Cover of Svetz
                  Svetz

                  series · 9 books · 1969

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                  Larry Niven's Svetz stories follow Hanville Svetz, a dimension-traveling agent sent to retrieve unusual specimens and creatures, with titles like The Flight of the Horse (1971) and Leviathan! built around individual retrieval missions gone strange. The separate tales were later gathered together with new material into the novel Rainbow Mars (1999).