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series2 books2006
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A minor diplomatic insult with a genetically engineered sheep breed spirals into a full interstellar crisis when the last surviving specimen of the 'Android's Dream' breed, needed for a critical ceremony with the alien Nidu, turns out to have been hunted to extinction by a Nidu faction bent on provoking war. John Scalzi's The Android's Dream follows ex-soldier Harry Creek as the hunt for a replacement leads him to Robin Baker, an ordinary woman carrying hidden sheep DNA that makes her the key to avoiding a war. It's a standalone comic space opera rather than an ongoing series.
series4 books1974
part of CoDominium
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Larry Niven and Jerry Pournelle's The Mote in God's Eye (1974) depicts humanity's first contact with an alien species, the Moties, set within the far-future interstellar setting of Pournelle's codominium future history. The Gripping Hand continues that first-contact crisis years later, and Outies, written by J. R. Pournelle, carries the story forward into a new generation. Together the three books trace an escalating encounter between human and Motie civilizations within the codominium universe.
series7 books1982
part of Alliance-Union Universe
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The Chanur novels are a series of five science fiction novels, forming three separate stories, written by American author C. J. Cherryh and published by DAW Books between 1982 and 1992. The first novel in the series is The Pride of Chanur (1982), which was nominated for both the Hugo and Locus Awards in 1983. The Pride of Chanur, originally a stand-alone story, was followed by the Chanur's Venture trilogy, Chanur's Venture (1984), which was shortlisted for a Locus Award in 1985; The Kif Strike Back (1985) and Chanur's Homecoming (1986). These were followed by a later sequel, Chanur's Legacy (1992). The five novels were also published in two omnibus editions: the first three in The Chanur Saga in 2000 and the next two in Chanur's Endgame in 2007.
Iain M. Banksstandalone novel2004
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The Algebraist is a science fiction novel by Scottish writer Iain M. Banks, published in print in 2004. It was nominated for a Hugo Award for Best Novel in 2005.
Poul Andersonstandalone novel1978
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After humanity discovers portals that transport a space vessel through time and space, a crew which has visited the planet of another species returns to Earth, only to find a political faction in power which seeks to conceal this knowledge in the name of social stability. With the aid of the political opposition, they escape and journey through the portal in search of knowledge, and perhaps even to meet those who created the portal system.
series5 books1970
part of Known Space
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The Ringworld series is a series of science fiction novels written by American author Larry Niven. It is part of his Known Space series of stories. Its backdrop is the Ringworld, a giant artifact 3 million times the surface area of Earth circling a star. The series is composed of four standalone science fiction novels, the original award-winning book and its three sequels:1970: Ringworld 1979: The Ringworld Engineers 1996: The Ringworld Throne 2004: Ringworld's Children
Gordon R. Dicksonstandalone novel1969
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From the flaps of the Baen/SFBC edition: "Is Earth merely the lost colony of a superior race? - She was well over six feet tall, and beautiful in a sculpted, abstract way. She had skin the color of white onyx, and her eyes... her eyes were large and feline - a startling lemon yellow in color. She was the Princess Afuan, one of the High-born, and she had chosen the Earthman Kim Keil to return to the Throne World with her - for she had decided that his performance in the bull-ring might amuse the Emperor. She didn't know that Jim was a bull-fighter only by virtue of six months' intensive training, nor that the bull was programmed - his behavior following and impressively fierce but unswerving pattern. Jim was just another wolfling to Afuan - a lesser being from a backward colony world. Jim, however, was keenly aware that he was playing a role, one which might prove to be extremely dangerous. Up until 10 years earlier, when their first ship had reached Alpha Centauri, the people of Earth hadn't even known that the vast Empire of human-occupied worlds existed. The discovery had been a profound shock. Had we evolved independently? Or were we merely descendants of the Empire's first space pioneers - a lost colony found at last, perhaps with devastating consequences? That's what Jim Keil had to find out. Chosen from among numerous highly qualified candidates - an anthropologist trained, mentally and physically, beyond the limits of his profession - it was his mission to observe the Throne World and the High-born... to determine whether or not they posed a threat to Earth. One thing was apparent from the start. The High-born were superior beings - physically taller and stronger than other humans, endowed with faster reflexes, superior mental capacity... and extraordinary technological resources. Their contempt for the new wolfling in their midst was open, their intrigues complex. An enormous gulf separated the people of the Throne World from Earthlings. But that gulf was not so wide that Jim couldn't recognize an enemy when he met one. Clearly, if he remained merely a passive observer of the High-born, he'd never survive among them."
series5 books2007
part of Known Space
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Fleet of Worlds opens a run of Known Space prequels co-written by Larry Niven and Edward M. Lerner, centered on the liberation of the human colony New Terra from the control of the Pierson's Puppeteers — the famously cowardly aliens who steer their fleet of five worlds away from any hint of danger. The series introduces a new Known Space species, the Gw'oth, across its run and eventually catches up to and continues past the original Ringworld novel in its fifth book, Fate of Worlds.
series4 books1979
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Janissaries are an American series of military and political-based science fiction novels are set in an interstellar confederation of races, in which humans are a slave race entrusted with military affairs and law enforcement. They were written by Jerry Pournelle, with Roland J. Green co-authoring the second two books.
series21 books1957
completed
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James Bolivar diGriz, alias "Slippery Jim" and "The Stainless Steel Rat", is a fictional character and a series of comic science fiction novels written by Harry Harrison.
Frank Herbertstandalone novel1970
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From Amazon: In the far future, humankind has made contact with numerous other species: Gowachin, Laclac, Wreaves, Pan Spechi, Taprisiots, and Caleban, and has helped to form the ConSentiency to govern among the species. After suffering under a tyrannous pure democracy, the sentients of the galaxy find the need for a Bureau of Sabotage (BuSab) to slow the wheels of government, thereby preventing it from legislating recklessly. BuSab is allowed to sabotage and harass the governmental, administrative, and economic powers in the ConSentiency. Private citizens must not be harassed, and vital functions of society are also exempt. Jorj X. McKie is a born troublemaker who has become one of BuSab's best agents. Drafted for the impossible task of establishing meaningful communication with an utterly alien entity who defies understanding, McKie finds himself racing against time to prevent a mad billionairess from wiping out all life in the ConSentiency.
series16 books2005
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The Old Man's War series is a series of science fiction novels by John Scalzi. The first book in the series, Old Man's War, was first published in 2005 by Tor Books, and was nominated for the Hugo Award for Best Novel in 2006. In 2026 it was a finalist for the Hugo Award for Best Series.
Harry Harrisonstandalone novel1973
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Star Smashers of the Galaxy Rangers is a 1973 comic science fiction novel by American writer Harry Harrison. It is a parody of the space opera genre and in particular, the Lensman and Skylark series of E. E. "Doc" Smith. The main characters are homages to Tom Swift Jr. and his buddy, Bud Barclay. It also includes a homage to Larry Niven's Ringworld (1970).
universe13 books1980
Start hereUplift · Start here
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No species, the Galactics insist, ever climbs to sapience alone. For a billion years the elder races have "uplifted" their chosen clients — reshaping some promising animal, gene by patient gene, into a thinking being, then binding it through long ages of indenture. Patron lifts client; client one day becomes patron; and every lineage traces back through the vast Galactic Library to the vanished Progenitors who began it all. Then a ragged band of primates arrives at the stars with no patron to claim them — wolflings, self-made, an affront to a hundred thousand years of law — and worse, these humans have already started uplifting neighbors of their own: the neo-dolphins and neo-chimpanzees of Earthclan. David Brin builds this galaxy across two trilogies. The first — Sundiver, the Hugo- and Nebula-winning Startide Rising, and the Hugo-winning The Uplift War — sends an expedition into the Sun, then follows the dolphin-crewed survey ship Streaker as it flees a discovery that sets fanatical star-clans at war, and a chimp-led resistance on an invaded colony world. The second sequence, Uplift Storm — Brightness Reef, Infinity's Shore, Heaven's Reach — descends to Jijo, a forbidden world where six fallen races hide as illegal settlers, and draws every loose thread toward a reckoning. Short fiction fills the margins. This is space opera with an ecologist's conscience: teeming with invented biologies, wry cross-species banter, and real unease about what we owe the minds we make. Begin with Startide Rising — the saga's beating heart, and readable on its own — or take Sundiver first and read straight through in publication order.
series3 books1994
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Conquerors is Timothy Zahn's military science-fiction trilogy following human fighter pilots and their commanders through an interstellar war that neither side fully understands, told across Conquerors' Pride, Conquerors' Heritage, and Conquerors' Legacy. Zahn alternates perspective between the human and alien chains of command, using the shifting viewpoints to slowly unpick why the conflict started in the first place. It's contact-and-conflict SF built around miscommunication rather than straightforward invasion.
Alan Dean Fosterstandalone novel1983
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A man born into the lowest depths of society works his way up to become the wealthiest and most powerful member of human society and to exert great influence in an alien society as well, but his solitary mentality makes it impossible to determine toward what goal he is relentlessly working.
series18 books1972
part of Humanx Commonwealth
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The Pip & Flinx novels follow Flinx, a young man with an unusual, mysterious origin, and his ever-present animal companion Pip, across Alan Dean Foster's Humanx Commonwealth setting. Beginning with The Tar-Aiym Krang (1972) — chronologically the second entry, since Foster later filled in Flinx's earlier life — the series grew to fifteen novels published between 1972 and 2017, mixing planetary adventure with a slowly unfolding personal mystery.
Robert Sheckleystandalone novel1966
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"In the future, interstellar travel to alien worlds will be too expensive for most ordinary people. It certainly is for Marvin, a college student who wants to take a really good vacation. And so he signs up for what he can afford, a mindswap, in which a persons consciousness is swapped into the body of an alien lifeform. But Marvin is unlucky, and finds himself in the body of an interstellar criminal, a body that he has to vacate fast. But that criminal consciousness has stolen Marvins earthly body, and Marvin has to find a body on the black market. Travel from world to world with Marvin, each one crazier than the last, as he keeps finding far-from-ideal bodies in awful situations, just to stay alive"--Cover p. [4].
Marion Zimmer Bradleystandalone novel1963
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The Lhari seem peaceful and friendly, but they go to some lengths to protect their monopoly on faster-than-light travel. One young man is sent to discover their secrets.
series19 books1972
completed
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The Heechee Saga, also known as the Gateway series, is a series of science fiction novels and short stories by Frederik Pohl. The Heechee are an advanced alien race that visited the Solar System hundreds of millennia ago and then mysteriously disappeared. They left behind bases containing artifacts, including working starships, which are discovered and exploited by humanity.
series5 books2005
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Timothy Zahn's Quadrail series follows ex-intelligence operative Frank Compton, recruited by the enigmatic Spider caretakers of the Quadrail, an interstellar train network that lets a dozen alien empires travel between worlds at a light-year a minute. Paired with the telepathically gifted Bayta, Compton investigates and fights the Modhri, a parasitic group-mind quietly seizing control of galactic leaders from within. The five novels, published 2005-2012, follow one continuous investigation from first contact with the threat to its final confrontation.
series3 books2000
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Ken MacLeod's Engines of Light trilogy opens with Cosmonaut Keep, alternating between a present-day scientist drawn into a hidden Soviet-era space program and an interstellar exploration effort in the far future, carried out with the help of long-lived, faster-than-light-capable alien traders. The two timelines gradually converge across Dark Light and Engine City. MacLeod uses the setup to work through his recurring interests in Cold War history and left-wing politics inside a space-opera frame.
series2 books2004
part of Commonwealth Universe
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The Commonwealth Saga is a series of science fiction novels by British science fiction writer Peter F. Hamilton. This saga consists of the novels Pandora's Star (2004) and Judas Unchained (2005). Hamilton has also written several books set in the same literary universe. Misspent Youth (2002) takes place 340 years before the events of Pandora's Star. The Void Trilogy, consisting of The Dreaming Void (2008), The Temporal Void (2009), and The Evolutionary Void (2010), takes place 1,200 years after the events of Judas Unchained; several of the main characters from Judas Unchained and Pandora's Star also appear in the Void trilogy.
series5 books1980
part of Uplift Universe
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David Brin's Uplift trilogy opens with Sundiver, sending human explorers into the Sun itself, then follows a dolphin-crewed starship on the run from hostile aliens in Startide Rising and a fight over the colony world Garth in The Uplift War. The books sit inside Brin's wider Uplift Universe, built on the idea that spacefaring "patron" species genetically engineer younger "client" species into full sapience, with humanity an anomaly that reached the stars without a patron of its own.