It was a day like any other when suddenly the world changed. The universe reached a threshold humanity didn’t even know existed, and it was time to finally be integrated into the vast multiverse. A place where power is the only thing anyone can truly rely on.

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.

Zac was alone in the middle of the forest when the world changed... The whole planet was introduced to the multiverse by an unfeeling System... or God. A universe where an endless number of races and civilizations fought for power and dominion. Zac finds himself stuck in the wilderness surrounded by deadly beasts, demons, and worse. Alone, lost and without answers, he must find the means to survive and get stronger in this new cut-throat reality.

There is more in our world than you know. Deep in the darkness of a government building, one man needs to find the perfect solution to a vampire’s request that the government satisfy the debt of honor owed him. If he falls short, the failure will be paid in the blood of the military. He needs three uniquely qualified individuals. He can find only one. One woman, dying, might be the ace-in-the-hole he needs to appease the Vampire. But then, she might also be the one person needed to save humanity. If she is accepted, will she willingly change?

Have you ever been sick of being the low man on the totem pole? A trio of mercs feel your pain. Chill, Ivan, and Kortez have been slaving away as mercenaries for years. But enough is enough, and they are done putting up with being an afterthought. Striking out alone is a risk, but mercenary work is not exactly in short supply. In the depths of a mine-riddled world, the Swarm is stirring. Chitinous hordes boil up from the depths, claiming lives and resources.

Fight, survive, adapt, and rely only on yourself. That is Derek’s creed and what's got him through the System Integration on Earth. Everything changed when the System came. Cute bunnies and beautiful butterflies became savage killing machines. Then the Invaders arrived with a single goal: to obtain ownership of this new habitable planet. War has raged ever since. None of this mattered much to Derek, aside from making living a little more perilous.

An alien race decides humanity’s fate: Eradication. They didn’t count on someone rising to challenge their decree. Constantine had forsaken his family name and birthright. At 28-years old, he’d escaped Earth to help terraform Mars. An empire’s heir went missing just as the universe’s greatest threat announces itself. War Games will decide who represents humanity in this extinction level struggle. Constantine is summoned.

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.

A monster dungeon is all Thomas has ever known. After all, he was born there. Now, at age 14, he’s been solo-clearing all 100 floors of the dungeon for years. The last of his family and friends are about to die off as an eternal void beast tirelessly pursues them. Will they ever escape?

The ship survived, but over time, the original crew died out. Their children were left to continue the fight for their home against their sworn enemy, the vicious alien Malibor. They’ve lived their whole lives in space. Their idea of heaven is open air, blue skies, and the quiet of peace. But they'll never have that if they don't take it by force.

Michael Freeman is a disabled veteran who had just been fired from his mind-numbing cubicle job, which allowed his opportunistic girlfriend to dump him. Now, he only wants to spend some time at his grandfather's mountain cabin so he can unwind, away from the drudgery of daily life and with a cold beer in his hands. Standing in his way is an ancient spaceship with an emotional AI, nanites that have invaded his body, an international crime syndicate, a suicidal FBI agent on a vigilante mission, terrorists . . . and that's just the beginning.

Don't miss the start of this LitRPG adventure about a reincarnated necromancer growing in power and finding his way in a new world where the rules have changed vastly since he last "lived".

Five years ago, aliens destroyed a carrier and its airwing at Jupiter without warning. Since then, the Earth’s nations have learned to work together, and they want to know more about the aliens who appeared, attacked, and vanished without a trace. The Americans have provided a new carrier. Chinese technology has made going after the invaders possible. And the Russians have developed a new control system that will give the craft never-before-seen capabilities. Mankind’s next war is upon us, and Uplink Squadron is the tip of the spear.

There is no weapon more powerful than the [Psychokinetic] mind. Astrid, a mischievous noble teen, long dreamed of exploring the ancient cities preserved beneath the waves, left behind from a time before the ocean swallowed the world. She's been training all her life to become a magic swordsman capable of doing just that. But when an ancient monster long thought dead assaults humanity's last bastion–a floating ship-city–she awakens her System early.

Possibly it's not to save a pair of drowning girls, not go 'viral' on social media and certainly not to let the local police take your passport, trapping you on a small 'party' island in the middle of the Mediterranean Sea. But Steve isn't the average guy, he's ex-military, ex-enforcer and ex-human. He's a one man nanite fuelled nightmare for those that cross the line, and he's decided that its time to clean up his act. He's going to make up for the things he's done, and save 'the little guys'.

When the Colony on Hayden's world went black, a team was sent to investigate. It was supposed to be a training mission: skip in, find out the Casimir Transmitter had gone dead, report back and wait for resupply from the Fleet. By the time the only surviving member of the team made landfall, it was spectacularly clear that this wasn't a training mission.

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.

Former Marine Arthur Holland’s destiny begins when an aircraft crashes on his property in the mountains of Colorado. He moves to investigate and to help any survivors, but the closer he gets the less control he has of his movements. An unknown force urges him to open the door of the mysterious craft, discovering the secret that lies within: a dead, alien pilot and a peculiar, otherworldly crystal. If that wasn’t enough, the crystal feels like it is alive. That’s when he hears a single word inside his mind: run.

One starship will either save Earth or destroy her. A century ago our star erupted, destroying Earth's wormhole network and closing off trade with her colonized planets. After being out of contact with the younger worlds for so many years, humanity is shocked when a huge ship appears at the edge of the solar system. Our outdated navy investigates, both curious and fearful. What they learn from the massive vessel shocks the planet.

Imprisoned for a murder he didn't commit, Kaiden's only hope of early release is in serving as a Warden in the game-world of Nova Online. Playing as a unique class while surrounded by aliens, pirates and warring guilds, he and his squad are tasked with protecting new players and enforcing the rule of law. But Kaiden has other ideas; he is intent on proving his innocence. The keys to his freedom lie hidden in the game's seedy underbelly. And as he'll soon discover, the bloody trail that led to his arrest is more twisted than he could have ever imagined.

In the final days of the empire, Cyborg Corps Colonel Leonidas Adler plans to die in a manner befitting of an imperial officer. He will fight until his last breath, giving his life to defend Emperor Markus, as it was meant to be. But when the emperor himself summons him for a final special mission, how can he refuse?

They tried to destroy our planets. Our way of life. They tried to send us into extinction. But we, the Coalition, fought them and won. That was a decade ago. They’re known as the Host: a cabal of aliens seeking to dominate our sector of space. And they’re back - with help from a powerful new enemy. We’re outnumbered and unprepared. But there is hope. An ancient race of long-dead but technologically advanced aliens called the Navigators have a ship called the Blackstar that could potentially turn the tide. That is if I, Kai Locke, a humble ship racer, can find it and learn how to harness its power in time.

Jason Burke was a man hiding from himself in a small cabin high in the American Rocky Mountains when his simple, quiet life was shattered one night by what he first assumed was an aviation mishap. But when he investigates the crash, what he finds will yank him out of his self-imposed exile and thrust him into a world he could have never imagined.

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.

Cobras are technologically-enhanced warriors bred to fight an alien menace no ordinary human can withstand. At the center of action, on the Cobra world of Aventine, is the legendary Moreau clan. While the Cobras are necessary in times of war, in times of peace, they are often reviled by those they have saved. Now, the Cobras have resisted a second invasion of the alien Troft forces, forcing the Troft to a stalemate - even converting some thoughtful Troft into uneasy allies against their kin.

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.

In the distant future, humans and several other races have been granted membership in the Confederation - at a price. They must act as soldier/protectors of the far more civilized races who have long since turned away from war.

As a MechWarrior of the Draconis Combine, Minobu Tetsuhara was bound by Bushido - a code that demands loyal service - to the devious Warlord Grieg Samsonov. But when Minobu came upon a strange blue-and-gold Archer, Bushido also dictated that he not destroy the honorable but helpless warrior. And so begins the BattleTech Chronicles, books one, two and three...

What you thought you knew about vampires and werewolves is wrong...so very, very, wrong. A thousand years of effort to keep the Unknown World hidden is unraveling and the Patriarch is tired. He needs to find someone to take over. He finds Bethany Anne.

The Earth died when aliens rained thermonuclear warheads on her cities and sprayed the surface with a bio-terminator. A deadly poison drifted to every corner of the planet, threatening the last survivors with annihilation. For a soldier like Creed, there is only one way to keep breathing untainted air. He must bury his hatred of the extraterrestrials and join the Jelk Corporation as an assault trooper, leaving the planet for outer space. In return for his and other people's services, the corporation will house the last humans for as long as the assault troopers keep winning.

Earth died, but even in death she’s still got a lot to offer. She’s not going to hand those gifts over easily, though. Who would be crazy enough to abandon the comfort of the Atlantica Stations to go treasure hunting on a dying world? Enter Dante Slate, professional Plunderer, and the very best at what he does.

Intergalactic lawman Terry Victor is betrayed by fellow officers and sent to a backwater planet on the interstellar arm of the universe. In short, he was sent to the planet called Earth. Fed up, he quits in a fit of disgust and seeks a peaceful retirement among the humans. Unfortunately, trouble has a way of finding Terry Victor. Keep his head down and away from Earth's authorities, or help a woman about to be attacked by a gang?

Congratulations Citizen, you have been selected for military service. It’s the news no one wants. Fighting the aliens known as the Ma’Tis is a dangerous occupation. Recruit Cosmo Frost will have to devote himself completely if he’s going to become a Battle Trooper and qualify for the elite Armor Brigade. The HAVOC drone is an experimental new technology developed specifically for the war with the Ma’Tis. The Heavy Armor Vehicle for Offensive Combat is faster and more agile than a MECH. It’s a walking weapons platform controlled by Battle Troopers in the newly developed...

Caleb Mitchell gave up everything to protect his home. Shunned by friends and family for abandoning the pacifist beliefs of their religion, abandoned by the love of his life, he left his home world of Canaan to go to the Commonwealth Military Academy on Earth and train to fight in the looming war against the implacable alien threat of the Tahni Imperium. When a training mission with a crew of cadets winds up caught in the middle of one of the worst battles of the war, Cal and his fellow students are officially declared dead.

Fountain of Youth, or Valley of Death? While eating his supper of microwave popcorn, PhD student-genius Salinger Jacobs is grabbed from his apartment in California, stuck on a C-130 military plane, and sent to the Sahara Desert to witness the reality of the ZOO for himself. With the life expectancy of untrained scientists working inside the ZOO measured in hours, he has a lot to learn. Fast. First order of business? How do you shoot a gun, and just how much is that plant worth?

After his mom died from cancer, Wash gave up his girlfriend and his dream of being a career Army officer to stay home and take care of his father, a former Special Forces soldier stricken with PTSD. Wash works three jobs just to pay the bills, and one of them is at the ranch of the man who’s engaged to his exgirlfriend, Jimmy Bonner. Sound rough? He thought so too … until a portal to a hell-world of giant, insectoid aliens opens behind the ranch house, sucking Wash and Jimmy into the nightmare domain of the Hive Mind.

Have you ever been sick of being the low man on the totem pole? A trio of mercs feel your pain. Chill, Ivan, and Kortez have been slaving away as mercenaries for years. But enough is enough, and they are done putting up with being an afterthought. Striking out alone is a risk, but mercenary work is not exactly in short supply. In the depths of a mine-riddled world, the Swarm is stirring. Chitinous hordes boil up from the depths, claiming lives and resources.

Zaena has been sent as an Elven emissary to learn and build a relationship with humanity. She's only two hundred and fifty years old, so time should be on her side. Except she gets involved in a brutal gang war in the first month of landing on the shores of the West Coast of the United States. San Francisco, to be exact. Zaena quickly learns that her knowledge of humanity is closer to the twentieth than the present-day twenty-first century. So much for her teachers' study of humanity's television shows.

A troubled young woman is recruited by a race of ancient alien explorers to be their emissary to save the human race from extinction. The problem is that not everyone believes the world is doomed, and not everyone trusts the aliens' motives. Holly Burton will have to overcome opposition from world leaders, attacks by religious zealots, assassination attempts, intractable bureaucracies, and her own fears and doubts if she is to save the human race, not just from the coming apocalypse, but from itself.

Only as interstellar mercenaries can humans go to the stars; the aliens who already dominate the galaxy allow no other recourse. But when Swordsman Third Class Kana Karr and his comrades-in-arms are betrayed and abandoned on a hostile world by their alien masters, the warriors from Earth begin a desperate but glorious march across a planet whose every sword is against them. Their actions may doom humanity's future...or lead the way to an empire of their own!