Sergeant Paxton Alejo is a League of Humanity Marine Commando, the best of the best. After getting sent to oversee a batch of fresh conscripts, Pax makes the fateful decision to sacrifice his life to save his subordinates. He is posthumously awarded the Cross of Honor, the highest military medal . . .

James Sutton was an average guy—he couldn’t afford college and didn’t really know what he wanted to do with his life. But when his sister Holly goes missing, he finds out he’s been living in a fantasy: An alien really did land in Roswell and the US has had a secret alliance with them ever since. They are symbiotes—capable of bonding with hosts, enhancing their strength, agility, and stamina. Now mankind finds itself in the middle of an alien civil war between two symbiote factions—those who would be our allies…and those who would subjugate us into slavery.

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?

After more than 20 years in special operations, USMC Gunnery Sergeant Wolf Mathison wasn’t looking forward to retirement when—implanted with an experimental artificial intelligence—he deployed on his last mission with a platoon of Marine Raiders being sent to the Jovian moon Europa. The USS Jefferson was destroyed en route, though, and only Mathison and three other marines survived. Trapped in stasis, they were hurled into the outer reaches of the solar system, where they wouldn’t be found for hundreds of years.

For years, pilots who merely looked like soldiers were adequate. They filled the mechs. They filled roles. They supported Spann and his genetic offshoot of pure-blooded warriors known as the Superba. Spann's dream of absolute power ends with a single, crushing blow as a new enemy strikes at the Realm, leaving no survivors—followed by a mad dash to find fighters who can stand up in the old ways, using the mechs gifted to humanity by their oldest allies. Even in the midst of war, there is hope.

During a test flight for the world’s first warp engine, Major Noah Gantz is set to go down in the history books. Despite years of training, the mission goes sideways, and instead of a quick trip to the moon and back, Noah's ship is transported across the universe to stars unknown.

The scum hiding deep inside the Reach out along galaxy's edge thought they could kill her and not pay the price. For years these hardened killers have run roughshod over the lawless worlds where Republic justice is never as fast as the blaster in your hand and where double-crosses and death are a part of every deal. They thought this time would be no different. They were wrong. This time, the Guild sent the legendary bounty hunter Tyrus Rechs. As the infamous Rechs pursues the men who murdered his colleague, he's hell-bent on justice.

What would you do to change your life? How far would you go? How hard would you fight? Rather than work his bones into dust toiling away on a barren world, Ryck Lysander chooses to enlist in the Federation Marine Corps. But as he quickly finds out, this path isn't just a job...it's a calling...and not everyone is suited to wear the uniform.

Charlie Travers figures his life can’t get much worse. He lives over a pizza restaurant, he’s lost his girlfriend, and has no prospects for a career. Then, he’s abducted by an alien robot and taken across the galaxy. When he wakes up, he finds himself stranded thousands of light-years away, and about to be killed by space pirates.

Tired of sitting out the war on Psydon in a mobile office lab, Legion Lieutenant Washam agrees to undertake a covert and unsanctioned mission with a band of Republic Recon Marines. Inserted deep behind enemy lines, the strike force uncovers a surprise key to ending a bitter war. Now they must navigate a hostile jungle teeming with murderous alien rebels, pushing themselves to the limits of their abilities, to get this vital intel to Legion Command - if they can survive that long.

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

Go to war or go to jail. For small-time street hustler Cam Alvarez, the choice is simple.... He has no family, no friends, no place in the world...nothing to lose. When his latest con results in the death of a cartel hit man, Cam opts to join the Marines and leave Earth to fight a vicious alien enemy. Drafted into the Marine Drop-Troopers, Cam discovers there’s one thing he’s even better at than running street-con games, and that’s killing the enemy.

In a single act of courage, the young American grunt saves an interstellar soldier from certain death at the hands of a vicious killer. Afterward, she promises to show him the stars. Mark will begin his new life far away from Earth—a life not so different from that of a humble soldier. Out among the asteroids, he learns of swords and honor, starships and empires. He learns what it means to be a Peacemaker. Along the way, he's joined by Perry, his combat AI companion who helps Mark learn how to survive—and earn a living—among the stars.

The war against the AI was won but a new threat is rising. Hank Spears is content with his life as a scrapper until he unearths an artificial intelligence who warns him of a grave threat to all life in the universe. Since AI has long been outlawed and anyone caught harboring one is imprisoned or executed, the two must go on the run, fleeing into the far reaches of space. They must avoid capture, all for the sake of those who would imprison them. Looking for help from old friends to fight new enemies, Hank must find a way to save himself so that he can save the universe.

The Amazon rainforest holds a world-changing secret—a ship lost to time from another world. College student Will Kaufman unearthed the biggest archaeological discovery in human history… he just needs to find a way back to Earth to tell people about it. Four thousand years ago, a Federation bounty hunter Void ship crashed on a remote and primitive planet. There it remained until Will found it and accidentally reactivated it, launching him light-years away.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.

Six days ago, astronaut Mark Watney became one of the first people to walk on Mars. Now, he's sure he'll be the first person to die there. After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive - and even if he could get word out, his supplies would be gone long before a rescue could arrive. But Mark isn't ready to give up yet.

Inheriting your uncle's supervillain business is more complicated than you might think. Particularly when you discover who's running the place. Charlie's life is going nowhere fast. A divorced substitute teacher living with his cat in a house his siblings want to sell, all he wants is to open a pub downtown, if only the bank will approve his loan. Then his long-lost uncle Jake dies and leaves his supervillain business (complete with island volcano lair) to Charlie. But becoming a supervillain isn't all giant laser death rays and lava pits.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.

Sergeant Paxton Alejo is a League of Humanity Marine Commando, the best of the best. After getting sent to oversee a batch of fresh conscripts, Pax makes the fateful decision to sacrifice his life to save his subordinates. He is posthumously awarded the Cross of Honor, the highest military medal . . .

What would you do to change your life? How far would you go? How hard would you fight? Rather than work his bones into dust toiling away on a barren world, Ryck Lysander chooses to enlist in the Federation Marine Corps. But as he quickly finds out, this path isn't just a job...it's a calling...and not everyone is suited to wear the uniform.

He doesn't want to destroy the world. Problem is, he's an Apocalypse. Zeke and his friends are enjoying the city when suddenly, the apocalypse begins. Which one? ALL OF THEM. Lucky (or unlucky) enough to be chosen as an apocalypse himself, Zeke sets off to [Devour] his way to the top! It wouldn't be so bad, but his best friend's out to kill him, that rock has a gun, and everything, literally everything, has gone to hell. Zeke just came out here to have a good time, and honestly, he's feeling so attacked right now.

Michiko MacCailin is a member of the First Families, more concerned with her privileged lifestyle of ballet, spending time with friends, and planning her wedding than of the injustices suffered by the indentured workers of the all-powerful Propitious Interstellar Fabrication, Inc., the charter holder of the planet. When her activist fiancé is murdered at a protest rally, she blames the company and embarks on a personal mission of vengeance.

The extra-galactic bridge between Earth and Terra Nova reopens after decades. Governor Hale calls for aid against an impossible alien threat known as the Inheritors, an advanced alien species with a mysterious connection to old allies. Hale needs the most powerful soldiers in the galaxy: Armor.

Shifted by quantum entanglement from Earth to an alien planet, military contractor Zander Greaves and his squad would have to adapt—and quickly—if they wanted to live. As they tried to understand what was happening, the stark truth of their new reality thrust itself on the shaken humans. Giant machines of war were attacking an equally humongous bug. And, quite unfortunately, the giant bug had a lot of little friends.

Lieutenant Bannon and his phalanx of Corvanite warriors have already seen some of the worst that the irregular war between the reptilian otuchans and the human latecomers can offer. Or so they think. First Sergeant Draven, trying to hold his company of Zolarian citizen soldiers together, has been on the desolate planet of Zhogalgan longer than Bannon. He's seen even more. Yet while they are both there as peacekeepers, they are not there to help each other.

Brian attends an anime convention with a mysterious charm.

Verdan Blacke is an Imperial Wizard, a researcher by preference but soldier by necessity. Surviving an intense battle, Verdan is cursed by a hex witch in her final moments. Without any good options, Verdan escapes the ever-increasing pain the curse inflicts by performing a self-made stasis ritual.

Charlie Travers figures his life can’t get much worse. He lives over a pizza restaurant, he’s lost his girlfriend, and has no prospects for a career. Then, he’s abducted by an alien robot and taken across the galaxy. When he wakes up, he finds himself stranded thousands of light-years away, and about to be killed by space pirates.

On the battlefields of the future, death is not the end for a soldier. The Revenant Program collects badly wounded soldiers broken by war and converts them into unthinking, unfeeling cyborg weapons. Their bodies are immune to pain, their minds impervious to fear and doubt. All controlled by a neural implant called the Imperative. They are the ideal force for any mission too deadly or too difficult for normal men. A force that answers to the darkest corners of the military.

Convicted of a minor traffic violation, Rev Pelletier is conscripted into the Perseus Union Marine Corps...for up to a 30-year term of service. Anxious to get back to his civilian life and job, Rev opts for a shorter term as a Marine Raider taking the fight to the enemy. But with extremely high mortality rates, can he and his friends survive until their term of service is over?

When the research starship Galileo vanishes without a trace, the powers-that-be are quick to bury the incident, eager to prevent escalating tensions that could lead to war. As a former POW, Soren refuses to give the ship up for lost. His daughter is one of the missing. Taking matters into his own hands, Soren starts pulling strings and calling in favors, determined to launch a clandestine mission to bring Galileo home. When an old friend offers him a ship for the operation, he expects a rusty relic headed for the scrapyard.

Each year, the Nightlords choose a new Emperor to rule Yohuachanca. Delicious food graces his palate. The realm’s most beautiful women fill his vast palace. Four priestesses counsel him in all matters. The life of an emperor is good, luxurious, and short... For at the year’s end, he is sacrificed to the Nightlords under the light of the Scarlet Moon. Iztac is the piss-poor orphan chosen to be this year’s emperor. A sacrifice bound for the altar.

A secret buried in the Antarctic. A puzzle unsolved for thousands of years. And a Brooklyn-born master gunnery sergeant who's royally pissed that he has to babysit the researchers sent to figure it all out. But when Patrick "Wic" Finnegan finally sees what the team has uncovered, he can't believe his eyes, nor is he prepared for the violence to come. Soon, the portal opens and unleashes a storm of unbridled fury upon humanity.