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.

Out of the blue, a young Space Fleet officer's dream becomes reality: He's made captain of a starship. Just in time for the return of humanity's most terrible enemy, after 50 years of peace. To survive against this enemy, Captain Tad Thatcher will have to do more than learn how to become an effective commander, or how to wrangle his wayward crew. He will need to reinvent space combat. From scratch.

Terminal Lance Lucky Lee Savage likes his life. Sure, doing PT hungover is a pain, but no one can dodge responsibility like he can - or sweet-talk the cooks into giving out double rations.

A formidable alien armada stands on the brink of vanquishing the cosmos, their gaze set firmly on every inhabited world. The last line of defense? An eclectic crew of improbable champions: a maverick starfighter pilot, a daredevil stuntwoman, a lethal super-assassin, and a cosmic prankster with alien tricks up his sleeves. Their mission is to shield not just humanity, but billions of other intelligent lifeforms spanning the multiverse.

Hudson Powell and Tory Bellona are the galaxy’s top Star Scavengers. Travelling to distant planets, they hunt for valuable artefacts inside the wrecks of giant alien starships that mysteriously lie crashed and broken on every portal world.

Captain Caleb Card and his crew are on a mission to investigate a transmission believed to be from the lost ship. Ambushed upon arrival, they immediately fear the worst. But the beacon isn’t only active, it’s on the move, and where it leads will change everything they thought they knew about the universe. Cast into a distant galaxy brimming with unknown dangers, they’ll need to adapt quickly if they want to survive long enough to help the missing colonists.

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.

U.S. Marine Tyson Gage has only one option left: to become a bounty hunter, then collect enough loot and upgrades to mount a rescue among the stars... Eight hundred years in the future. Joined by his dog and a beautiful woman who, despite their attraction, is on his last nerve, Gage must leave life on Earth behind for a universe of aliens, criminals, and hyperspace more deadly and awesome than he can imagine.

Commander Dalton Reeves is a maverick officer with exceptional genetic strength and a dark family history—a history that will come back to haunt him. Punished for exceeding orders one time too many, he’s packed off to the "The Abyss"—the most dangerous space station in the galaxy. But a posting that should have led to five years in obscurity will propel Reeves into the center of an interstellar war against a long-forgotten alien adversary with a bitter grudge.

Dillon Mackey has always wanted to travel the stars.... When brilliant scientist and inventor Sherisza Rousilarru offers him an apprenticeship aboard her starship, he leaps at the chance to escape a boring future in the law.

Few know the warship’s actual name. But everyone has heard the rumors. The PUV James Keeling can do something no other vessel in existence can do—slip into another dimension, travel undetected, then re-emerge onto our plane and surprise enemy targets. But the thing that makes the Crypt unique also makes it a nightmare for those onboard; interdimensional travel causes hallucinations, violent behavior, and psychotic breakdowns. Keeling could be the Union’s greatest weapon, a game-changing asset that can defeat the bloodthirsty zealots of the Purist Nation, the Union’s mortal enemy.

Once, Master Commander Carter Rose was the Union’s secret weapon. An augmented, bio-engineered officer in command of the most powerful warship ever devised by human minds, Rose brought them victory against the post-human Aternien Empire. Then they cast him aside. A century later, living alone on a distant forest moon, feared and forsaken by the people he fought to save, Rose has grown bitter and resentful, while his superhuman body refuses to age.

Two civilizations clash. A rebellion grows. The fate of the galaxy hangs in the balance. Technical Chief "Pappy" Gunther is a grizzled, burning-out commando in the United Earth Armed Forces. He ponders a return to civilian life, yet feels a strong sense of belonging to his elite team. When colonists on a far-flung world request aid, a task force from several allied systems is assembled. Pappy and his crack unit are sent to investigate and to engage a mysterious alien force from beyond.

Ethan is a ranger, sworn to protect his walled settlement from the dangers of his ravaged wasteland planet. One night, a mysterious light thunders overhead and Ethan investigates, discovering a crashed spacecraft and two soldiers from a moon base he didn’t even know existed. Captain Salus and Commander Kurren have risked everything to find a Planetsider to help save their people. Ethan needs them to answer questions that have haunted him all his life – what happened to his world and why?

Brad Mendoza is an idiot. He knows it, and so does everyone else. A promising naval career down the drain just, because he accidentally killed 504 civilians. So, it's time for him to give up and accept a dead-end command on Persephone, the worst ship in the fleet. Until he meets the beautiful and cunning Jessica Lin, his new executive officer, who harbors a terrible secret of her own. Now, he's in a race to save her and his stupid ship.

As a lifer in the Imperial Navy, fighting in a war that has lasted generations, Lieutenant York Ballin's only hope for an honorable discharge is the grave. Neither the Empire nor the Directorate seems to care that millions have died or that millions more are doomed as hostilities continue. Ballin's only option is to hunker down, keep his crewmen and women in top condition, and try not to get them all killed.

The plot by the Galactic Union’s Mercenary Guild against the Four Horsemen has culminated in an invasion of Earth. Faced with an overwhelming force, the human mercs had no choice. They’ve fled, leaving Sansar Enkh to go to the Mercenary Guild headquarters on Capital Planet to stand trial for humanity. On the run, Jim Cartwright and Nigel Shirazi have travelled to the Winged Hussars’ secret base of New Warsaw, in an effort to convince Alexis Cromwell to join the fight, while the other mercenaries who escaped the fall of Earth have gone to the perceived safe haven of Karma.

Logan Conner is the son of a king, the heir to the largest of the five star-dominions, and the best mech pilot in the galaxy. His people are plagued by pirates and raiders, surrounded by enemies, and not even his father can fight them all. Logan gives up his position, his rank, even his name, and becomes Jonathan Slaughter, leader of a rough-and-ready band of mercenary mech-jocks bent on taking the battle to the enemy on their own terms.

These are the voyages of the starship A.S.F. Willful Child. Its ongoing mission: to seek out strange new worlds on which to plant the Terran flag, to subjugate and if necessary obliterate new life-forms, to boldly blow the... And so we join the not-terribly-bright but exceedingly cock-sure Captain Hadrian Sawback and his motley crew on board the Starship Willful Child for a series of devil-may-care, near-calamitous and downright chaotic adventures through "the infinite vastness of interstellar space".

The galaxy was once terrorized by the Sturm, a group of “species purists” intent on destroying any human with genetic or cybernetic enhancements. Fashioning themselves as the one true “Human Republic,” the Sturm cut a bloody swath across the stars, killing billions before finally being defeated and driven into the far reaches of Dark Space. Centuries of peace bred complacency. Everyone believed the Sturm had died out in the Dark. They were wrong.

Within the L, a tri-star system located inside the Aquilian Nebula, Jax makes a living trading and smuggling whatever goods pay the best. So far, he’s avoided being caught with anything too damning in his ship’s holds, but when he takes a job for Korinth, an infamous arms dealer, all that changes. The haul is worth 10 times his ship, and when the contents gets him embroiled in a tug of war between the major political factions of the L, Jax has to keep the criminals he works for from discovering that he’s playing both sides.

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.

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.

After a decade of piloting interstellar patrol ships, former captain Chasidah Bergren, onetime pride of the Sixth Fleet, finds herself court-martialed for a crime she didn't commit and shipped off to a remote prison planet from which no one ever escapes. But when she kills a brutal guard in an act of self-defense, someone even more dangerous emerges from the shadows. Gabriel Sullivan alpha mercenary, smuggler, and rogue is supposed to be dead.

Boss loves to dive historical ships, derelict spacecraft found adrift in the blackness between the stars. Sometimes she salvages for money, but mostly she's an active historian. She wants to know about the past--to experience it firsthand. Once she's dived the ship, she'll either leave it for others to find or file a claim so that she can bring tourists to dive it as well. It's a good life for a tough loner, with more interest in artifacts than people.

Kyle Riggs is snatched by an alien spacecraft sometime after midnight. The ship is testing everyone it catches and murdering the weak. The good news is that Kyle keeps passing tests and staying alive. The bad news is the aliens who sent this ship are the nicest ones out there.

When humanity reaches for the stars, our probes are destroyed. They crash into an incredibly advanced piece of technology: a massive force-field. Unknown beings have placed a barrier around our star and planets, enclosing us within. We’re locked inside a Great Sphere. Was this invisible obstacle built to imprison us - or to protect us? No one knows the truth, but it soon becomes clear the barrier has leaks. Aliens infiltrate and try to sabotage our efforts to escape our cage.

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.

The 200 years' (and counting) peace was a time of tranquility that hasn't been seen since...well, ever. Mankind in the Galactic Age had finally conquered war, so what was left for the military to do but drink and barbecue? That's the kind of military that Sergeant R. Wilson Rogers lived in before he left the fleet to become a smuggler. But it turns out that smuggling is hard. Like getting-arrested-for-dealing-with-pirates-and-forced-back-into-service kind of hard.

When a hideous accident kills the senior officers of the UNS Hibernia, it leaves a terrified young officer to save 300 colonists and crew aboard a damaged ship on a 17-month gauntlet to reach the colony of Hope Nation. With no chance of rescue or reinforcement, Nicholas Seafort must overcome despair, exhaustion, and guilt. He must conquer malfunctions, mutiny, and an alien horror beyond human understanding. And he must save lives, and take them - in the name of duty.