Book picks similar to
Mastodonia by Clifford D. Simak


science-fiction
time-travel
sci-fi
fiction

All My Sins Remembered


Joe Haldeman - 1977
    The only problem is that the Confederacion needs him as one of its twelve Prime Operators for its secret service, the TBII. The TBII wants him as a spy, thief & assassin. It's not, of course, a problem for the Confederacion, which simply uses immersion therapy & hypnotic personality overlay for Otto's training, then sends him out in deep cover, encased in plastiflesh, on a variety of dangerous missions on a number of bizarre worlds. But for him, it's a different matter: what he has to witness & what he's forced to do take a terrible toll. Always he returns to his original self--his conscience stabbed by the memory of all those he'd killed in the service of interstellar harmony.

The Unincorporated Man


Dani Kollin - 2009
    This reborn civilization is one in which every individual is incorporated at birth, and spends many years trying to attain control over his or her own life by getting a majority of his or her own shares. Life extension has made life very long indeed.Now the incredible has happened: a billionaire businessman from our time, frozen in secret in the early twenty-first century, is discovered and resurrected, given health and a vigorous younger body. Justin Cord is the only unincorporated man in the world, a true stranger in this strange land. Justin survived because he is tough and smart. He cannot accept only part ownership of himself, even if that places him in conflict with a civilization that extends outside the solar system to the Oort Cloud.  People will be arguing about this novel and this world for decades.

Ancestral Night


Elizabeth Bear - 2019
    Haimey and her small crew run afoul of pirates at the outer limits of the Milky Way, and find themselves on the run and in possession of universe-changing information.When authorities prove corrupt, Haimey realizes that she is the only one who can protect her galaxy-spanning civilization from the implications of this ancient technology—and the revolutionaries who want to use it for terror and war. Her quest will take her careening from the event horizon of the supermassive black hole at the galaxy’s core to the infinite, empty spaces at its edge.To save everything that matters, she will need to uncover the secrets of ancient intelligences lost to time—and her own lost secrets, which she will wish had remained hidden from her forever.

Out Of Their Minds


Clifford Simak - 1970
    What if their world were real--if dragons, devils and Don Quixote hobnobbed with Dagwood Bumstead and Charlie Brown? Such a world would have its facinations..and its dreadful perils--if it existed. Horton Smith found out that it did..and that he was right in the middle of it!

Hidden Empire


Kevin J. Anderson - 2002
    Two archaeologists glean forbidden knowledge from the ruins of a dead world. Robot servants of ruling insectoid Klikiss guard the Klikiss Torch, which has the power to create suns. The reasons for the fall of the Klikiss empire may return.

An Alien Heat


Michael Moorcock - 1972
    Earth's inhabitants are unfazed as they believe him to be yet another doomsayer; the End of the Earth has been predicted for centuries. Jherek is far more interested in Mrs Amelia Underwood, a time traveller from Victorian England, as he is fascinated by the Victorian era. Jherek resolves to fall in love with her. Mrs Underwood, at first repulsed by the debauchery of the End of Time, finally comes to believe that Jherek is sincere in his affections and starts teaching him about moral values. She falls in love with him at last; as they are about to embrace, however, she is whisked back to her own time. Jherek, heartbroken, decides to rescue her, and travels to 19th century London.Jherek is inexperienced to the point of naivete about the Victorian Era, despite his interest in it, and a (temporally) local thief, Snoozer Vine, tricks him into becoming an accomplice to Snoozer's latest scam. Not surprisingly, Jherek proves to be a poor criminal, and is quickly arrested, jailed and sent to trial. To his surprise, the judge appears to be none other than his friend, Lord Jagged but claims to be one Jagger. Jherek is sentenced to death, as the case against him is unequivocal, but he cannot understand why all the people around him are so upset; inhabitants of the End of Time are immortal, and for them death is merely transitory. Jherek is hanged, only to wake up among his friends at the End of Time, who tell him that to them, he has only been gone for a second.This is the first Avon paperback printing.

Virtual Light


William Gibson - 1993
    He finds himself on a collision course that results in a desperate romance, and a journey into the ecstasy and dread that mirror each other at the heart of the postmodern experience.

Jack the Bodiless


Julian May - 1991
    Leading humanity was the powerful Remillard family, but somebody--or something--known only as "Fury" wanted them out of the way.Only Rogi Remillard, the chosen tool of the most powerful alien being in the Milieu, and his nephew Marc, the greatest metapsychic yet born on Earth, knew about Fury. But even they were powerless to stop it when it began to kill off Remillards and other metapsychic operants--and all the suspects were Remillards themselves.Meanwhile, a Remillard son was born, a boy who could represent the future of all humanity. His incredible mind was more powerful even than his brother Marc's--but he was destined to be desroyed by his own DNA...unless Fury got to him first!From the Paperback edition.

The Cyberiad


Stanisław Lem - 1965
    Ranging from the prophetic to the surreal, these stories demonstrate Stanislaw Lem's vast talent and remarkable ability to blend meaning and magic into a wholly entertaining and captivating work.

Greybeard


Brian W. Aldiss - 1964
    The sombre story of a group of people in their fifties who face the fact that there is no younger generation coming to replace them; instead nature is rushing back to obliterate the disaster they have brought on themselves.

Gate of Ivrel


C.J. Cherryh - 1976
    In their time, long before the rise of the native civilizations, they had terrorized a hundred worlds—not from villainy but from folly, from tampering with the strands that held a universe together.Now the task was to uproot these Gates, destroy their potency for mischief, take horror out of the hands of the few who hungered for power by misuse of the Gates.This is the story of one such Gate and one such world.

Bones of the Earth


Michael Swanwick - 2002
    . . and an ice cooler containing the head of a freshly killed Stegosaurus. For Leyster and a select group of scientific colleagues an impossible fantasy has come true: the ability to study dinosaurs up close, in their own era and milieu. But tampering with time and paradox can have disastrous effects on the future and the past alike, breeding a violent new strain of fundamentalist terror -- and, worse still, encouraging brilliant rebels like Dr. Gertrude Salley to toy with the working mechanisms of natural law, no matter what the consequences. And when they concern the largest, most savage creatures that ever walked the Earth, the consequences may be too horrifying to imagine . . .

The Inverted World


Christopher Priest - 1974
    Rails must be freshly laid ahead of the city & carefully removed in its wake. Rivers & mountains present nearly insurmountable challenges to the ingenuity of the city's engineers. But if the city does not move, it will fall farther & farther behind the optimum & into the crushing gravitational field that has transformed life on Earth. The only alternative to progress is death. The secret directorate that governs the city makes sure that its inhabitants know nothing of this. Raised in common in creches, nurtured on synthetic food, prevented above all from venturing outside the closed circuit of the city, they're carefully sheltered from the dire necessities that have come to define human existence. Yet the city is in crisis. People are growing restive. The population is dwindling. The rulers know that, for all their efforts, slowly but surely the city is slipping ever farther behind the optimum. Helward Mann is a member of the city's elite. Better than anyone, he knows how tenuous is the city's continued existence. But the world he's about to discover is infinitely stranger than the strange world he believes he knows so well.

Enterprise: The First Adventure


Vonda N. McIntyre - 1986
    Kirk is the youngest man to be promoted to the rank of captain in Federation history. His crew consists of a first officer who finds him impetuous; a chief engineer who finds him arrogent; a chief medical officer who finds him trifling; and a helmsman who wants a transfer. But the young crew, which would later become the legendary space explorers, quickly puts aside their differences when a monstrous starship appears on their nascent flight path.

Callahan's Crosstime Saloon


Spider Robinson - 1977
    Pull up a chair, grab a glass of your favorite, and listen to the stories spun by time travelers, cybernetic aliens, telepaths...and a bunch of regular folks on a mission to save the world, one customer at a time.Callahan's Crosstime Saloon contains the following stories, virtually all of which were published in Analog Science Fiction and Fact: * "The Guy With the Eyes" * "The Time-Traveler" * "The Centipede's Dilemma" * "Two Heads Are Better Than One" * "The Law Of Conservation of Pain" * "Just Dessert" * "A Voice is Heard in Ramah..." * "Unnatural Causes" * "The Wonderful Conspiracy"