Jake Melkins is a few months away from turning 21. By the Seceltor Empire's laws, he will have to go to a breeding camp, or directly into slavery. Neither choice appeals to him. All this changes with the arrival of a space-and-time-traveling being known as Evaran at the space-station-turned-rest-stop that Jake lives on.

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

When an experiment to study quantum uncertainty goes spectacularly wrong, physics student Bill Rustad and his friends find that they have accidentally created an inter-dimensional portal. They connect to Outland - an alternate Earth with identical geology, but where humans never evolved. The group races to establish control of the portal before the government, the military, or evildoers can take it away. Then everything changes when the Yellowstone supervolcano erupts in an explosion large enough to destroy civilization and kill half the planet.

Gus is a Henchman separated from his friends at his new job, a henchman on an orbiting space base. He's happy with the gig, and has no real delusions of grandeur. Well...small delusions, but he’s seen all too often what happens to minions who get too uppity around their supervillain bosses.

Extensive training molded Bruce into a finely tuned mercenary. A man capable of scouring the galaxy to protect the innocent and vanquish the corrupt. An assignment to a distant outer system brings mystery, death, and mayhem. During his mission, a chance encounter with a stunning royal in a dimly lit bar results in all hell breaking loose. Save the damsel, figure out the mystery, and kill all the bad guys. If only saving humanity was that simple.

Earth has long ago expanded into space, found, fought, and befriended aliens, and expanded across the galaxy to dominate most of it, but one of the semi-immortal warlords who founded it is about to have a revelation as the "Endgame" that has been whispered between various advanced civilizations lands squarely on his shoulders. The Empire knew this was coming, but they had no idea the scope of it. Lightside civilizations are always hounded and attacked by those who revel in evil, but when the Endgame starts, it's a beatdown like no other coming from outside the galaxy.

Long before Casmir Dabrowski and Kim Sato leave their world for the epic adventures of the Star Kingdom series, long before they outwit terrorists and mercenaries and do battle on a galactic scale, long before they become best friends and roommates...they have to meet for the first time. This is that story.

The fate of the entire Marvel Universe hangs in the balance as Earth's mightiest heroes face their greatest challenge! Summoned across the stars by the mysterious and unbelievably powerful Beyonder, the Avengers, Spider-Man, the Fantastic Four, and the X-Men are set against their deadliest foes on the mysterious planet known as Battleworld - with the winner promised the ultimate prize. But as battle lines are drawn, new alliances are forged, and old enemies clash, one among them is not willing to settle for anything less than godhood.

He thought the bloodshed was over. The true terror is just beginning...Captain Liam Hoffen has no time to relax after defeating the Mendari. Hastily organizing an expedition to their home world, he brings his beleaguered crew across the stars to install the new leadership. But as soon as he arrives, a massive prototype warship slices into their path and threatens the entire mission. After a daring confrontation, Hoffen pushes through to the planet. But once there, he discovers a terrifying weapon of mass destruction was launched at the end of the war.

How can a colony on Mars survive when the greatest danger on the planet is humanity itself? All contact is lost with the first privately funded colony on Mars during a long and destructive sandstorm. Satellite imagery of the aftermath shows extensive damage to the facility. The 54 colonists who called it home are presumed dead.

Rade Galaal and his team of special operators are deployed to a colony under attack by a strange new alien race. Their mission: find the extraterrestrial base and destroy it. The operation should be easy, given that his men pilot Brigand mechs: massive, 25-foot-tall war machines armed to the teeth with electrolasers, rockets, incendiary throwers, and more. But it's not easy. Rade and his team soon find themselves in over their heads. Surrounded by an entire world of enraged aliens, they must rely on their wits, their training, and their mechs to survive.

The galaxy has chewed up the Reynolds and spit it out. The search is on for the raw materials to make the parts they need to fix the ship. Who can stand up to the superdreadnought in a no-name galaxy at the edge of the universe? It’s looking grim for a group hug, leaving the captain and crew with the choice of fight, flight, or diplomacy.

Before he was the super confident, snarky AI saving Siv Gendin and his friends’ bacon on a regular basis, Silky worked with his first human companion, Eyana Ora, an Empathic Services agent. This was the mission where it all began. Two centuries before the Fall of the Benevolence. A simple covert mission to spy on the Krixis, a telepathic alien race, turns into a desperate bid to save mankind when Silky and Eyana uncover a plot to use a secret super-weapon. But the weapon, a lost piece of ancient technology, holds secrets that neither side expected.

As if nearly burning up in a freak accident on her way to Earth wasn't bad enough, Daisy had a whole mess of other trouble on her plate. Big trouble. And she was going to get to the bottom of it if it was the last thing she'd do, which it was starting to look like it very well might be. The thing is, Daisy had a simple rule for space travel. Don't blow up, and so far she'd been managing to abide by that, but mere survival wasn't enough.

Commander Scott McNabb and the crew of the science vessel, Hermes, are three years into a five-year-long survey of the asteroid belt when they discover a derelict spaceship in orbit around a binary asteroid. The ship contains an experimental quantum device, lost while en route to a research colony on Europa.

Escaping wrongful imprisonment wasn't something Connor had in mind, but being put into stasis aboard Earth's first interstellar colony ship was something he couldn't have prepared for. For 300,000 colonists, the new colony brings the promise of a fresh start...a second chance. Connor might be the wrong man for the colony, but he's the right man to see that it survives what's coming.

Cities all around the world reported strange alien vessels descending. Some saw them as the heralds of a new age; others fired everything they had at them. All were taken as the beams lashed down and drew them into the sky. Dean was left behind, seemingly the last man on Earth. A trail of clues left by his dead wife guides Dean on a perilous journey across America and beyond to learn the truth behind the mysterious ships and save humanity from its doom.

Liam Saunders-Chang is one of the last humans left on Mars. The son of two scientists who have been racing against time to create technology vital to humanity's survival, Liam, along with his friend Phoebe, will be on the last starliner to depart before Mars, like Earth before it, is destroyed. Or so he thinks. Because before this day is over, Liam and Phoebe will make a series of profound discoveries about the nature of time and space and find out that the human race is just one of many in our universe locked in a dangerous struggle for survival.

Higgens has the best job in the galaxy. Except for the fact that he’s technically a janitor on a galactic mining vessel. When he discovers an unknown alien species, his world gets turned upside down. He will have to find unlikely allies if he is going to save his new friend and help her build a new home. The Mimic and the Space Engineer boxed set contains the first three books in the Space Shifter Chronicles. If you like fast-paced space adventures with engaging, and quirky, characters, you will love Higgens, Mimic, and their adventures in space.

From birth to death, The War is all the citizens of Dystance know. As children it is drilled into their heads that war is the purpose behind all existence. Winter doesn't agree. She's stumbled across remnants of life the way it was before The War began, and now she longs to be as free as her ancestors. With help from her best friend Cedar and the boy she is forbidden to love, Tallow. She believes she can do it. Winter can see a life beyond the Pickets, beyond the constant hunger and the threat of death, beyond the war machine.

When a high-value scientist is taken hostage inside the galaxy's most dangerous prison, Halek Cain is the only man for the job. The last remaining survivor of the Reaper program, Hal is an unstoppable force of fuel and madness. A veteran amputee-turned-cyborg, he has a history of violence and a talent for killing that is unmatched by any soldier. With the promise of freedom as his only incentive, he'll stop at nothing to earn back his life from the people who made him, imprisoned him, and were too afraid to let him die.

It is the second stage of human colonization - the first age, humanity's initial attempt to people the stars, ended in disaster when it was discovered that Earth's original superluminal drive did permanent genetic damage to all who used it - mutating Earth's far-flung colonists in mind and body. Now, one of Earth's first colonies has given humanity back the stars, but at a high price - a monopoly over all human commerce.

A chance encounter, on his last mission, sends him hurtling through space on the Unity exploration ship XES01. Surrounded by aliens, Zade must quickly learn to interact with the non-soldiers on the crew. As he tries to earn his place amongst the ship, Zade's combat prowess quickly earns him a spot as the security officer of the ship. A seat left vacant because of a fatal exchange between the former security officer and the wildlife of a far planet. As Zade begins living the adrenaline filled life of a space explorer, he has to ask himself some very important questions.

Caleb is a former Marine Raider and commander of the Vultures, a search and rescue team that's spent the last two years pulling high-value targets out of alien-ravaged cities and shipping them off-world. When his new orders call for him to join 40,000 survivors aboard the last starship out, he thinks his days of fighting are over. The Deliverance represents a fresh start and a chance to leave the war behind for good. Except the war won't be as easy to escape as he thought.

Jake Melkins is a few months away from turning 21. By the Seceltor Empire's laws, he will have to go to a breeding camp, or directly into slavery. Neither choice appeals to him. All this changes with the arrival of a space-and-time-traveling being known as Evaran at the space-station-turned-rest-stop that Jake lives on.

The crew of Moonbase Columbus makes an amazing discovery on the far side of the Moon - a massive alien structure is erecting itself, built up atom by atom by living machines, microscopically small, intelligent, and unstoppable, consuming everything they touch. The mysterious structure begins to expand and take shape, and its creators begin to multiply. Is this the first strike in an alien invasion from the stars? Or has human nanotechnology experimentation gone awry, triggering an unexpected infestation?

Legion Dark Ops has always been a unit shrouded in secrecy. Tasked with performing covert missions, its kill teams are filled with the best warriors from within the ranks of the Legion. Kel Turner is one of the youngest legionnaires ever to be selected to its ranks. After many battles and trials, he is faced with the greatest challenge of his life - operating by himself on a remote planet at the galaxy's edge, a foot soldier for the policies of the duplicitous House of Reason, tasked with solving a crisis that would take ten kill teams to resolve.

A derelict warship, ancient but still alive. A small team of humans fighting for all humanity. Built for a time when the races were just finding their way to the stars, finding that they could dominate others. The galactic conquests created the arms race and the ancients, the Progenitors had to protect their own. They built a ship to drive the others away.

When Jack Harrison climbed down the short ladder from the airlock and stepped onto the debris covered soil, the ground crackled with the sound of dried leaves and twigs.

At a time when Humans were just starting to venture forth into the Galactic Union as mercenaries, Martin Quincy survived long enough to do something no one else had - he retired. There was only one problem: He got bored. After battling aliens for many years - killing aliens and getting paid - retirement didn’t suit him, and he decided to strap on the combat armor and go back to the stars. Along with his old friend Kal, Martin joined Cartwright’s Cavaliers, humanity’s best merc company. Life was exciting! But he got bored. Again.