In the 20th century Earth sent probes, transmissions, and welcoming messages to the stars. Unfortunately, someone noticed. The Galactics arrived with their battle fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined their vast Empire. Swearing allegiance to our distant alien overlords wasn't the only requirement for survival. We also had to have something of value to trade, something that neighboring planets would pay their hard-earned credits to buy. As most of the local worlds were too civilized to have a proper army, the only valuable service Earth could provide came in the form of soldiers....

Captain Keyes is loved by the public but hated by Command. He captains the UHS Providence, an aging supercarrier and the last human ship not dependent on dark tech - technology humanity has used to rule over the galaxy since barely defeating the Ixa in the First Galactic War. Dominance has come at a cost. Over the decades, old allies have grown resentful, and when dark tech itself fails, Captain Keyes’ predictions start coming true: those old allies are now enemies.

Raised fatherless in a galactic Brinktown, Joe Pikeman only ever wanted to escape. The Galactic Guard offered that escape, with the promise of regular meals to boot. Now Joe is a full Guardsman, with his own ship and a snide partner bot who hates humans almost as much as he hates other bots. To the pirates he hunts, Joe is known as the Butcher. His bloody reputation has landed him in the center of a sweeping conspiracy that threatens to stamp out the galaxy’s last surviving human settlements.

Knocking at death’s door. Bargaining for a second chance. Seems like a heck of a way to find out about an alien invasion.... Vietnam vet Albert Jenkins is battling a bulging waistline and a passion for drink. So when a towering pile of scrap rocket parts falls and crushes the stubborn curmudgeon, he thinks it’s finally the end. But just as he’s about to take one final breath, a snarky alien parasite offers him a deal: His life in return for sharing his body.

When the Ornu came, they took Earth in a single night. Humanity never stood a chance. Now, they force us to crew their ships and fight their wars for them. They hold Earth hostage, and if we refuse to do their bidding, they’ll lay waste to our precious blue marble. Slaughtering the billions who live there. But when Captain Bill Henderson is sent to claim a small moon for his masters, he finds something they never accounted for. An ancient warship – a behemoth abandoned for millennia by a species that reached its peak at the dawn of the universe.

Years after defeating aliens bent on burning down the galaxy, the Interstellar Union is breaking apart, its member species undermining each other at every opportunity. When an interdimensional distress signal arrives, only humanity is interested in helping. Captain Vin Husher is given command of the UHS Relentless, and sent in as part of a carrier strike group...right into a trap laid by humanity’s old enemy. Surrounded by a bioengineered super-species and unable to return home, Husher must draw on decades of experience just to keep his people alive.

Born to oppression, Siena is an ordinary young woman, until an act of defiance leaves her scarred and marked as a rebel. She's sold to Ero, a fallen Krey with a desperate plan to redeem his once-powerful family. He intends to enhance slaves by altering their genetic code, increasing their value through an illegal experiment.

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

Idealistic Navy Lieutenant Jacob Grimm just wanted to honor his mother’s sacrifice in the last great war. When he’s forced to return fire and destroy a squadron of ships to save his own, he thinks he’s the hero...until they discover the ships are full of children. Disgraced and denied promotion, Jacob’s career is over. That is until the head of ONI needs a disposable officer to command a battered destroyer on the rim.

The Hundred Worlds have withstood invasion by the relentless Hok for decades. The human worlds are strong, but the Hok have the resources of a thousand planets behind them, and their fleets attack in endless waves. The long war has transformed the Hundred Worlds into heavily fortified star systems. Their economies are geared for military output, and they raise specialized soldiers to save our species. Assault Captain Derek Straker is one such man among many.