Engines. Genetically modified warriors that keep the great Nova Alliance war machine churning against the enemy Coalition. Most days, Engines are all that stand between salvation and chaos. Led by legendary Engine Captain Akira Hayashi, Shadow Squad has fought on the frontlines for a decade. They are on the brink of victory when the Coalition launches a series of desperate and devastating attacks that cripple the Nova Alliance restoration sites vital to save the dying planet.

From the Audie-nominated narrator of The Martian. In eleven years' time, a million members of an alien race will arrive at Earth. Years before they enter orbit, their approach will be announced by the flare of a thousand flames in the sky, their ships' huge engines burning hard to slow them from the vast speeds needed to cross interstellar space. These foreboding lights will shine in our night sky like new stars, getting ever brighter until they outshine even the sun, casting ominous shadows and banishing the night until they suddenly blink out.

The best-selling, epic space adventure, Freedom's Fire: the complete series of six audiobooks, in one bundle.

John Perry did two things on his 75th birthday. First he visited his wife's grave. Then he joined the army. The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce—and alien races willing to fight us for them are common. So: we fight. To defend Earth, and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding. Earth itself is a backwater.

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.

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.

The authority of the Syndicate Worlds’ government is crumbling. Civil war and rebellion are breaking out in many star systems, despite the Syndic government’s brutal attempts to suppress disorder. Midway is one of those star systems, and leaders there must decide whether to remain loyal to the old order or fight for something new.

With Earth in the path of the rapacious Posleen, the Galactic Federation offers help to the backward humans - for a price. You can protect yourself from your enemies, but God save you from your allies!

The Earth is changing. The alien invasion brought social upheaval, advanced technology, and an armada of peacekeeping robots. But Alan, a college student pursuing a now-useless degree, cares little about all of this. He has only one thing on his mind: the Game. A fully immersive virtual reality, the Game appears to be a major part of the invading civilization. Alan can't wait to play, recklessly diving into the digital universe. Soon though, Alan realizes the Game is anything but simple, and the stakes are higher than he ever imagined.

The Galactic Empire is dying and chaos and anarchy are breaking out everywhere. After a disastrous mission against terrorists on Earth itself, Captain Edward Stalker of the Terran Marine Corps makes the mistake of speaking truth to power, telling one of the most powerful men in the Empire a few home truths. As a result, Captain Stalker and his men are unceremoniously exiled to Avalon, a world right on the Rim of the Empire. It should have been an easy posting...

It's been 30 years since the apocalypse and 15 years since the murder of the last human being at the hands of robots. Humankind is extinct. Every man, woman, and child has been liquidated by a global uprising devised by the very machines humans designed and built to serve them. Most of the world is controlled by an OWI - One World Intelligence, the shared consciousness of millions of robots uploaded into one huge mainframe brain.

When a small alien spacecraft lands in the Amazon jungle, the world's most powerful nations race to retrieve it and harvest its superior technology. The dense rain forest renders traditional military vehicles useless, so the United States sends in a single operative - a powerfully enhanced human sporting revolutionary technology. But the interstellar visitor has arrived with a secret and gory purpose of its own. Seeker will have listeners running for cover.

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.

Eric was happily retired. His consciousness resided inside the body of an advanced android. He had two beautiful female companions, a platoon of war hero friends, and the entire floor of an apartment building to call his own. He had paid his dues, having saved the world during his previous stint in the army, and now he could live out the rest of his life in peace and quiet. As an android, he expected that life to last a very long time. And then the army came knocking at his door again.

A military expert reveals how science fiction is fast becoming reality on the battlefield, changing not just how wars are fought, but also the politics, economics, laws, and ethics that surround war itself. Singer’s previous books foretold the rise of private military contractors and the advent of child soldiers - predictions that have proved all too accurate. Now he explores the greatest revolution in military affairs since the atom bomb: robotic warfare. We are now seeing a massive shift in military technology....

The Earth is changing. The alien invasion brought social upheaval, advanced technology, and an armada of peacekeeping robots. But Alan, a college student pursuing a now-useless degree, cares little about all of this. He has only one thing on his mind: the Game. A fully immersive virtual reality, the Game appears to be a major part of the invading civilization. Alan can't wait to play, recklessly diving into the digital universe. Soon though, Alan realizes the Game is anything but simple, and the stakes are higher than he ever imagined.

Captain Mitchell "Ares" Williams is a space marine and the hero of the Battle for Liberty whose shot heard 'round the universe saved the planet from a nearly unstoppable war machine. He's handsome, charismatic, and the perfect poster boy to help the military drive enlistment. Pulled from the war and thrown into the spotlight, he's as efficient at charming the media and bedding beautiful celebrities as he was at shooting down enemy starfighters.

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.

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 year 2280, an alien fleet attacked the Earth. Their weapons were unstoppable, their defenses unbreakable. Our technology was inferior, our militaries overwhelmed. Only one starship escaped before civilization fell. Earth was lost. It was never forgotten. Fifty-two years have passed. A message from home has been received. The time to fight for what is ours has come.

Earth has been a scarred ruin for three decades, its scattered people struggling to survive amid the poisoned and radioactive wreckage of the final war between its despotic superpowers. While the people of Earth struggle to survive, out on the frontier, on a thousand worlds, mankind thrives and grows, building new civilizations and looking boldly to the future. But man has never been able to live in peace, and even Earth's sad fate has failed to slow the call to war.

Terrence Compton is one of Earth's greatest admirals, a warrior almost without equal. Alongside his oldest friend and brilliant colleague, Augustus Garret, he and his forces saved Earth from invasion by the robotic legions of the First Imperium's insane computer Regent. There is just one problem. The First Imperium was held back by the disruption of the sole warp gate connecting the two domains...and Compton and 300 of his ships are trapped on the wrong side, surrounded by the Regent's vast fleets and cut off from Earth.

With Earth in the path of the rapacious Posleen, the Galactic Federation offers help to the backward humans - for a price. You can protect yourself from your enemies, but God save you from your allies!

In the future, the terminally ill can prolong life by surrendering their consciousness to a cybernetic life form that is then recruited into the notorious Legion of the Damned, an elite fighting unit charged with protecting humanity.

Seventy thousand years ago, the human race almost went extinct. We survived, but no one knows how.

Until now. The countdown to the next stage of human evolution is about to begin, and humanity might not survive this time. The Immari are good at keeping secrets. For 2,000 years, they've hidden the truth about human evolution. They've also searched for an ancient enemy - a threat that could wipe out the human race. Now the search is over.

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.

When a small alien spacecraft lands in the Amazon jungle, the world's most powerful nations race to retrieve it and harvest its superior technology. The dense rain forest renders traditional military vehicles useless, so the United States sends in a single operative - a powerfully enhanced human sporting revolutionary technology. But the interstellar visitor has arrived with a secret and gory purpose of its own. Seeker will have listeners running for cover.

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...

A military expert reveals how science fiction is fast becoming reality on the battlefield, changing not just how wars are fought, but also the politics, economics, laws, and ethics that surround war itself. Singer’s previous books foretold the rise of private military contractors and the advent of child soldiers - predictions that have proved all too accurate. Now he explores the greatest revolution in military affairs since the atom bomb: robotic warfare. We are now seeing a massive shift in military technology....

From the Audie-nominated narrator of The Martian. In eleven years' time, a million members of an alien race will arrive at Earth. Years before they enter orbit, their approach will be announced by the flare of a thousand flames in the sky, their ships' huge engines burning hard to slow them from the vast speeds needed to cross interstellar space. These foreboding lights will shine in our night sky like new stars, getting ever brighter until they outshine even the sun, casting ominous shadows and banishing the night until they suddenly blink out.