Book picks similar to
A World of Difference by Harry Turtledove


science-fiction
alternate-history
fiction
sci-fi

Armor


John Steakley - 1984
    The military sci-fi classic in a striking new packageFelix is an Earth soldier, encased in special body armor designed to withstand Earth's most implacable enemy-a bioengineered, insectoid alien horde. But Felix is also equipped with internal mechanisms that enable him, and his fellow soldiers, to survive battle situations that would destroy a man's mind.This is a remarkable novel of the horror, the courage, and the aftermath of combat--and how the strength of the human spirit can be the greatest armor of all.

The Voyage of the Space Beagle


A.E. van Vogt - 1950
    The saga of the Space Beagle, mankind's first effort to reach another galaxy. And what strange life-forms are encountered!

Into the Storm


Taylor Anderson - 2008
    Its captain, Lieutenant Commander Matthew Patrick Reddy, knows that he and his crew are in dire straits. In desperation, he heads Walker into a squall, hoping it will give them cover---and emerges somewhere else.Familiar landmarks appear, but the water teems with monstrous, vicious fish. And there appear to be dinosaurs grazing on the plains of Bali. Gradually Matt and his crew must accept the fact that they are in an alternate world---and they are not alone. Humans have not evolved, but two other species have. And they are at war.With its steam power and weaponry, the Walker's very existence could alter the balance of power. And for Matt and his crew, who have the means to turn a primitive war into a genocidal Armageddon, one thing becomes clear: They must decide whose side they're on. Because whoever they choose to side with is the winner.

The Puppet Masters


Robert A. Heinlein - 1951
    Then came the announcement that the whole thing was a hoax. End of story. Case closed.Except that two agents of the most secret intelligence agency in the U.S. government were on the scene and disappeared without reporting back. Then four more follow up agents also disappeared. So the head of the agency and his two top agents went in and managed to get out with their discovery: an invasion is underway by slug-like aliens who can touch a human and completely control his or her mind. What the humans know, they know. What the slugs want, no matter what, the human will do. And most of Iowa is already under their control.Sam Cavanaugh was one of the agents who discovered the truth. Unfortunately, that was just before he was taken over by one of the aliens and began working for the invaders, with no will of his own. And he has just learned that a high official in the Treasury Department is now under control of the aliens. Since the Treasury Department includes the Secret Service, which safeguards the President of the United States, control of the entire nation is near at hand.

Roadmarks


Roger Zelazny - 1979
    Why the Dragons of Bel'kwinith made the Road--or who they are--no one knows. But the Road has always been there and for those who know how to find it, it always will be!

Consider Phlebas


Iain M. Banks - 1987
    Billions had died, billions more were doomed. Moons, planets, the very stars themselves, faced destruction, cold-blooded, brutal, and worse, random. The Idirans fought for their Faith; the Culture for its moral right to exist. Principles were at stake. There could be no surrender.Within the cosmic conflict, an individual crusade. Deep within a fabled labyrinth on a barren world, a Planet of the Dead proscribed to mortals, lay a fugitive Mind. Both the Culture and the Idirans sought it. It was the fate of Horza, the Changer, and his motley crew of unpredictable mercenaries, human and machine, actually to find it, and with it their own destruction.

2001: A Space Odyssey


Arthur C. Clarke - 1968
    On the Moon, an enigma is uncovered.So great are the implications of this discovery that for the first time men are sent out deep into our solar system.But long before their destination is reached, things begin to go horribly, inexplicably wrong...One of the greatest-selling science fiction novels of our time, this classic book will grip you to the very end.

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 Tar-Aiym Krang


Alan Dean Foster - 1972
    The planet attracted unwary travelers, hardened space-sailors, and merchant buccaneers -- a teeming, constantly shifting horde that provided a comfortable income for certain quick-witted fellows like Flinx and his pet flying snake Pip. With his odd talents, the pickings were easy enough so that Flinx did not have to be dishonest ... most of the time.In fact, it hardly seemed dishonest at all to steal a starmap from a dead body that didn't really need it anymore. But Flinx wasn't quite smart enough. He should have wondered why the body was dead in the first place...

Wild Cards


George R.R. MartinBrian Bolland - 1986
    Most victims die, others experience physical or psychic changes: aces have useful powers, deuces minor maybe entertaining abilities, jokers uglified, disabled, relegated to ghettos.

Plague of Pythons


Frederik Pohl - 1965
    No man knew at what moment he might be Possessed!On Christmas the world's freedom died. Every man, woman and child lay in the grip of fear, for no one knew at what moment his nearest friend or a casual stranger might suddenly be possessed by some brutal mind ... and begin to murder and destroy. For Chandler it was worse than for most. He was both victim and executioner. He had suffered himself, and he had committed a violent crime while under the strange domination. Accusing of hoaxing he was driven from his home. He wandered the world and found it smashed like a spoiled child's plaything―now Chandler was in the very presence of the destroyers! But what could one person do against such power?—the power of gods!

Inherit the Stars


James P. Hogan - 1977
    They called him Charlie. He had big eyes, abundant body hair and fairly long nostrils. His skeletal body was found clad in a bright red spacesuit, hidden in a rocky grave. They didn't know who he was, how he got there, or what had killed him. All they knew was that his corpse was 50,000 years old; and that meant that this man had somehow lived long before he ever could have existed!

Axiom's End


Lindsay Ellis - 2020
    A well-timed leak has revealed that the US government might have engaged in first contact. Cora Sabino is doing everything she can to avoid the whole mess, since the force driving the controversy is her whistleblower father. Even though Cora hasn’t spoken to him in years, his celebrity has caught the attention of the press, the Internet, the paparazzi, and the government—and with him in hiding, that attention is on her. She neither knows nor cares whether her father’s leaks are a hoax, and wants nothing to do with him—until she learns just how deeply entrenched her family is in the cover-up, and that an extraterrestrial presence has been on Earth for decades.Realizing the extent to which both she and the public have been lied to, she sets out to gather as much information as she can, and finds that the best way for her to uncover the truth is not as a whistleblower, but as an intermediary. The alien presence has been completely uncommunicative until she convinces one of them that she can act as their interpreter, becoming the first and only human vessel of communication. Their otherworldly connection will change everything she thought she knew about being human—and could unleash a force more sinister than she ever imagined.

Armada


Ernest Cline - 2015
    Dreaming that the real world could be a little more like the countless science-fiction books, movies, and videogames he’s spent his life consuming. Dreaming that one day, some fantastic, world-altering event will shatter the monotony of his humdrum existence and whisk him off on some grand space-faring adventure. But hey, there’s nothing wrong with a little escapism, right? After all, Zack tells himself, he knows the difference between fantasy and reality. He knows that here in the real world, aimless teenage gamers with anger issues don’t get chosen to save the universe. And then he sees the flying saucer. Even stranger, the alien ship he’s staring at is straight out of the videogame he plays every night, a hugely popular online flight simulator called Armada—in which gamers just happen to be protecting the earth from alien invaders. No, Zack hasn’t lost his mind. As impossible as it seems, what he’s seeing is all too real. And his skills—as well as those of millions of gamers across the world—are going to be needed to save the earth from what’s about to befall it. It’s Zack’s chance, at last, to play the hero. But even through the terror and exhilaration, he can’t help thinking back to all those science-fiction stories he grew up with, and wondering: Doesn’t something about this scenario seem a little…familiar? At once gleefully embracing and brilliantly subverting science-fiction conventions as only Ernest Cline could, Armada is a rollicking, surprising thriller, a classic coming of age adventure, and an alien invasion tale like nothing you’ve ever read before—one whose every page is infused with the pop-culture savvy that has helped make Ready Player One a phenomenon.

Shadows of the Empire


Steve Perry - 1996
    Han Solo, frozen in carbonite, is being taken to the vile gangster Jabba the Hutt. As Princess Leia mounts a rescue mission including Luke Skywalker, Lando Calrissian, and a brilliant young pilot, Darth Vader pits himself against a cunning and ruthless rival. Xizor is the leader of a powerful crime syndicate who seeks to supplant Vader for the favor of their mutual master, the dreaded Emperor. Their target: Luke Skywalker. Suddenly Luke finds himself the potential prize of the two most evil entities in the galaxy--one who wants him alive...and one who wants him dead.