From the bottom of the oceans of the world a hidden threat stalks mankind—probing, testing our weapons and defenses, biding time to strike. In the summer of 2039, this aquatic foe unleashes surprise attacks against coastal cities around the globe. Mankind faces a sophisticated new enemy, arrived from the depths of space and lurking in the dark blackness of the seas.

100 million dead. 500 million wounded. One billion homeless. The worst war in human history is over—and has left the Star League shattered. Jealousy and infighting from the five Great House Lords over who will be the next First Lord has the entire Inner Sphere already teetering on the brink of all-out conflict again.

Bruised, battered, and barely standing, Vandal soon returns to the cockpit to bolster the ranks of a desperate defense force. As he and his fellow Chevaliers attempt to hold back the flood of turncoats, spearheaded by a legendary cadre of off-world mercenaries, Vandal must learn to master the fickle and deadly upright tanks if he wants to live to see the next contract.

Since the Clan Invasion of 3050 ended in failure, there have been those who have not forgotten Nicholas Kerensky’s ultimate goal: The conquering of Terra, and the rise of one clan above all others…to become the ilClan, and rule over both the rest of the Clans and the Inner Sphere…regardless of what the Great Houses may say about it…

Alien tech discovered. The race to claim it could spark a new kind of War. When a derelict alien starship appears in the solar system and crash-lands on Mars, it ignites a desperate race to be the first to reach the Red Planet to claim the mysterious technological treasures of the Visitor. Space Force General Tom Bradstreet, ace Air Force fighter pilot and the only active-duty officer with actual space combat experience, is given control of the Morrigan, the first manned mission to Mars—and the first space warship.

When aliens invade Las Vegas, one man is thrust into a battle beyond imagination, fighting the terrifying shock troops of a sprawling galactic empire. To protect a terrified child, he seizes the strange weapon of a fallen hero—an ancient, sentient sword—and is catapulted far into the future with no way back. Now trapped in an alien world, he must master the sword's mysterious power and navigate a deadly game of political intrigue. But time is running out for humanity.

The return of humanity's oldest enemy... An alien prophecy that predicts our species' downfall... And a captain who's the only thing standing in the way of his starship getting mothballed. Wait, what? Imagine Captain Keyes’ surprise when the fate of the galaxy turns out to depend on him, his decrepit ship, and his oddball crew.

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?

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.

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...

When Thomas heard the cries for help, he didn’t hesitate to do the right thing. It was his chance for redemption. Until everything went wrong. The cave should have been deserted. The perfect place to hide. Instead, it’s crawling with soldiers and engineers working to unearth the impossible: Excalibur.

Brent Parthet just wanted to be left alone. A deadly supercommando in the Southwind War, Brent had retired a hero to a wildlife preserve as far from civilization as possible to enjoy the simple life with his wife and young son. But when one of the Southwind, the massive, genetically-engineered slaves who'd rebelled against their human masters, shows up at Brent's door, asking for help from an old enemy, Brent will find out that the war isn't really over. And he may have been fighting for the wrong side.

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.

In the wilds of a jungle planet, the Legion fights in brutal combat as Republic marines fly their SLICS from one tragedy to the next. H292, a repurposed warbot, shows the heart of a hero as he wades into the battle not to destroy - but to save.

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. But when one of the Revenants awakens, he can only remember two things: that he must fight, and a code name…Dead Man.