The 26th century. Humanity has expanded beyond Earth’s system to hundreds of planets that colonists now call home. But the United Earth Government and the United Nations Space Command is struggling to control this vast empire. After exhausting all strategies to keep seething colonial insurrections from exploding into a full-blown interplanetary civil war, the UNSC has one last hope.

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.

After discovering a cache of Prothean technology on Mars in 2148, humanity is spreading to the stars---the newest interstellar species, struggling to carve out its place in the greater galactic community. On the edge of colonized space, ship commander and Alliance war hero David Anderson investigates the remains of a top secret military research station---smoking ruins littered with bodies and unanswered questions. Who attacked this post, and for what purpose?

Predator ships stream into human space in unprecedented numbers. The Colonial Marines, controlled by Weyland-Yutani, respond to the incursion, thus entering the Rage War. This terrifying assault by the Yautja cannot go unchallenged, yet the cost of combat is high. Predators are master combatants, and each encounter yields a high body count. Then, when Lt. Johnny Mains and his marines - the VoidLarks - enter the fray, they discover an enemy deadlier than any could imagine.

One thousand years after Earth was destroyed in an unprovoked attack, humanity has emerged victorious from a series of terrible wars to assure its place in the galaxy. But during celebrations on humanity’s new homeworld, the legendary Captain Pantillo of the battle carrier Phoenix is court-martialed then killed, and his deputy, Lieutenant Commander Erik Debogande, the heir to humanity’s most powerful industrial family, is framed for his murder.

Lave: A single planet, orbiting a dying star. For centuries, spacefarers have visited, docked at the space station, and left, with no thought for the people on the planet below. Bad luck at cards means bad luck all around for Pietro Devander, who journeys halfway across human-controlled space to this ancient planet, whose name is barely remembered. What he finds is resistance. What it becomes is revolution.

Alex and his three friends drop out of college after discovering a revolutionary way to travel into space using a small amount of energy. Their world-changing technology is sought by the government, and they are forced to go into hiding while they perfect it. Their adventures into orbit and beyond become a global sensation. As they navigate fame, family, and those who are determined to stop them, little do they know that their little startup could have galactic consequences once they discover a derelict spaceship.

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.

The Silicate War has been over for 15 years, and the tension among the dominant galactic races is growing. Many fear that the Umblegarri, the ancient alien race that ushered humanity into the interstellar galactic community during the Silicate War, have been targeted for conquest by the Crax and their allies. It's no longer speculation. The invasion is underway and Kra finds himself strapped to a hospital bed, critically injured and surrounded by hostile corporate lawyers, high-ranking military and intelligence officials, ambitious members of the criminal justice apparatus, and an Umbelgarri diplomat.

Join the Endurance's crew - a trigger-happy first officer, a hyperactive engineer, a shy covert operative, a conspiracy-spouting physicist, and a captain trying to earn his way back into his superiors' good graces....

Bombs go off in the human colony of Atlantis. In the same system, the gas giant miners of Hybras Station have been evicted, but refuse to move. Commander Hanson of the Solar Alliance Navy is sent to defuse the situation. But as he investigates, the mission becomes more complicated than anyone anticipated. The mysteries multiply. Who is really behind the bombings? What is the ancient alien substance inside the atmosphere of Hybras? And who is the silent, faceless, merciless stranger moving between Atlantis and Hybras Station?

Kalian Gaines has a secret; he just doesn't know it yet. He looks like us, he lives like us...but he is not one of us. Kalian knows nothing outside of his mundane life teaching history on 30th-century Earth, until a day like any other triggers a series of events that will tie his fate to that of humanity. A human handprint, embedded into a rock with alien script, is discovered on a moon that mankind has never set foot on. This discovery holds a secret, which will sweep Kalian into the heart of a conspiracy that has corrupted the galaxy for 200,000 years.

Based on the blockbuster pilot episode for the Deep Space Nine television series, Emissary introduces listeners to the mysterious space station that hovers on the edge of a wormhole. Read by series star Nana Visitor, and enhanced with sound effects and an original score.

The Krakau came to Earth to invite humanity into a growing alliance of sentient species. However, they happened to arrive after a mutated plague wiped out half the planet, turned the rest into shambling, near-unstoppable animals, and basically destroyed human civilization. You know - your standard apocalypse. The Krakau's first impulse was to turn around and go home. Their second impulse was to try to fix us. Now, a century later, human beings might not be what they once were, but at least they're no longer trying to eat everyone. Mostly.

In the mid-23rd century, Darwin, Australia, stands as the last human city on Earth. The world has succumbed to an alien plague, with most of the population transformed into mindless, savage creatures. The planet’s refugees flock to Darwin, where a space elevator—created by the architects of this apocalypse, the Builders—emits a plague-suppressing aura.