During the test flight of a prototype faster-than-light craft, Lt. Commander Ky is flung into an ancient past that never existed. Rome has fallen, defeated by the mighty Carthaginian Empire, its survivors chased off the continent and onto what had been the remote province of Britannia. Hounded by the Carthaginians bent on conquering the known world, Rome is on the verge of destruction. Stranded and alone, except for a tactical AI implanted in his head, Ky has lost everything and must find a way to live in a world different than anything he's ever known.

An engineer finds himself in an alternate reality, Cornwall, in the year 715 A.D. He awakens in the body of a young Baron.

Joe Colsco boarded a flight from San Francisco to Chicago to attend a national chemistry meeting. He would never set foot on Earth again. On planet Anyar, Joe is found unconscious on a beach of a large island inhabited by humans where the level of technology is similar to Earth circa 1700. He awakes amid strangers speaking an unintelligible language and struggles to accept losing his previous life and finding a place in a society with different customs, needing a way to support himself and not knowing a single soul.

Ryo was a chef, an extremely good one at that. That was until the entire universe as he knew it changed. After his spaceship is attacked and destroyed by an enemy armada, he finds himself in a situation he never could have imagined. Sent back in time and to an alternate reality, he has quite a few choices to make. Especially considering that the ruthless Kublai Khan and his Mongol Horde are just a few years away.

Everyone could see it coming. But one man could do something about it. Oh, he couldn't avert the nuclear holocaust, but a scientist in Austria, ruthlessly using billions of research dollars for his own purposes, set himself up and out: he created a time machine, and filled a warehouse with low-tech survival gear. Too bad he didn't get to use it himself. Instead, a team of American grad students, led by their professor, is sent back to the late Roman Empire. Even though they are experts in this time and place, they are about to realize that books and actual experience are very different things.

When the over-driven hyperdrive on their mobile shipyard burned out, the Chhrt'ktk't abandoned it in an inhabited system along their path, hoping it would work as a decoy to buy them more time to escape the Khreetan fleet pursuing them. They didn't anticipate how far the pre-spacefaring species they turned over their broken-down maintenance facility to would subvert their plan.

For more than fifty years, the Terran Republic and the Terran League have been killing one another. The death toll has climbed ever higher, year after year, with no end in sight. But the members of the Five Hundred, the social elite of the Republic's Heart Worlds, don't care.

Two centuries after the Confederation staved off an invasion by the robotic Locusts, Captain Jack Romanoff faces mandatory retirement from an ever-shrinking navy. Actions speak louder than words. The Confederation doesn’t think the Locusts are coming back. But what if the politicians are wrong?

Lieutenant Anthony Pacino reports aboard the “project boat” USS Vermont two years after having survived the catastrophic sinking of the Piranha. Pacino quickly learns that Vermont’s missions are all ultra-secret with the boat reporting only to the sub force commander, the national security advisor, and the president: Vermont does the dirty deeds that need doing in deadly silence and obscurity. After Vermont misses the mark on an easy mission, there are questions asked about her ability to conduct the next mission.

When a bunch of interstellar scavengers approach Earth intending to abduct a few dozen humans and sell them into slavery in the darkest, they make the mistake of picking on Steve Stuart and his friends, ex-military veterans all. Unprepared for humans who can actually fight, unaware of the true capabilities of their stolen starships, the scavengers rapidly lose control of the ship - and their lives.

The Galactic Empire is dying and chaos and anarchy are breaking out everywhere. After a disastrous mission against terrorists on Earth itself, Captain Edward Stalker of the Terran Marine Corps makes the mistake of speaking truth to power, telling one of the most powerful men in the Empire a few home truths. As a result, Captain Stalker and his men are unceremoniously exiled to Avalon, a world right on the Rim of the Empire. It should have been an easy posting...

Fresh out of the Academy, Ensign Cole Jackson’s first posting to Freedom couldn’t have come at a worse time. All over the Alliance, planets and colonies are suddenly under attack by the vicious Coven Empire. Freedom and her sister ship, Hood, are ambushed by alien warships, leaving Hood drifting dead in the void. Cole is ordered to salvage parts from the powerless Hood, but when he arrives on the unpowered hulk, Freedom is called away, marooning him and a group of malcontent techs in deep space.

While celebrating his latest victory, Exarch Niramyn carelessly lets his guard down. Seeing his chance, the mighty Myzalik—Nym's rival of a thousand years—casts a spell that sends him back to adolescence, with no idea who he really is or how he came to be washed up on the beach of Bloodfin Cove. Fortunately, the kindly Ciana comes along and saves him. But she quickly realizes he's no ordinary child. For one thing, he has magical abilities she's never seen in someone so young. And for another, he can fly.

The United Sovereign States of Russia struggles to set in place the traditions and legal precedents that will let it turn into a constitutional monarchy with freedom and opportunity for all its citizens. At the same time, they’re trying to balance the power of the states and the federal government.

Get ready to experience two more origin stories in the Backyard Starship universe.