While Star Force begins to defend itself against the V'kit'no'sat, the Skarron Crusade is still in full force, eventually arriving at the border of the advanced Voku Empire and slamming into it with alarming numbers...too many for the superior Voku to stop, turning the secondary war into a contest of attrition while the bulk of the Crusade is directed at the Li'vorkrachnika and others. The full might of the Skarron Empire is now visible to the galaxy as everyone who stands in the way of the 4th Crusade is subsequently overrun by a wealth of military assets beyond reckoning.

The Shattered Legions crew of the Sisypheum, broken and at the end of their endurance, find themselves divided - torn between following their resurrected captain on a suicidal mission or obeying orders to return to Terra and rejoin their Legion brothers. Following a series of garbled messages intercepted by the Kryptos, the divided warriors descend to the shattered surface of Luna. Here, their bonds of loyalty, duty, and their devotion to one another will be tested as ancient horrors of the earliest days of gene-manipulation are unleashed, and a long-buried secret is revealed.

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.

AD 2565. Tranquility-4 near the frontier of the White Knight Empire. Guided by mysterious orders, the authorities at the Human Marine Corps base of Beta City thaw Lance Scipio. In 2441, an entire Marine company was executed with the exception of Captain Grimgerde and Sergeant Lance Scipio, the usual punishment for running in the face of the enemy. But these two were preserved...as if they would be required in the future.

In war, mistakes kill. Earth's fleet has just made the biggest one ever. The alien race's sacred relic, destroyed by a misfire.... Will humanity fall?

As the last star fighter in squadron 111, Midshipman Henry Gallant is on his way from Jupiter to Mars. With the United Planets' fleet on the verge of annihilation, he can expect no help as he passes through the asteroid belt and threatening aliens. In an era of genetic engineering, he is the only Natural (non-genetically enhanced) officer left in the fleet. His classmates and superior officers have all expressed their concern that he will not be up to the demands of the space service.

Evan was desperate to hit the big time playing Star Commander, the world’s most popular real-time strategy game. While Evan works hard to get the pros to notice him, it's very different eyes that are captivated by Evan's progress. The Kirran Hegemony is at war. Outclassed at every step, the aliens turn to the most warlike race they know - humanity! Abducted from Earth, Evan finds himself fighting for his life, using his skills to command Hegemony forces in desperate battle. Now, helped by fellow humans, Evan must prove victory can be grasped from the jaws of impossible odds.

An apocalyptic war looms, and few believe it is a war that can be won. As Terran colonies evacuate, the mighty Laconians stand alone against the merciless Median Empire. They will never surrender, and their new King, Agesilaus, has a scheme that could transform the fortunes of all Terrans. As leader of the most powerful of the Terran states, he plans the unthinkable. Inspired by the valor and adventures of the infamous Ten Thousand mercenaries, he launches a pre-emptive strike against the Empire.

Sergeant Davis had been in the US Marines for seven years when he stumbled into a knife fight outside the local bar. He ended up killing the wrong alien. Now, as a human who interfered with a galactic plot and killed a Confederation enforcer, his actions sentenced Earth to die. His only choice: desert the Corps and take the punishment on himself. It seems like the Roswell aliens have been helping us all along. While the conspiracy theorists were right, there are alien lizards wearing people suits.

"A Nation at War": the United Stars of America. Born in the conflagration of unprovoked alien attack, the newest entrant to galactic politics took the few crumbs of hypertech gifted to it and ran with them, soon expanding over dozens of star systems and establishing a wide trade network, protected by its powerful Navy and the dreaded Warp Marines.

The Blood Angels Chapter of Space Marines is under threat. Having obliterated all human life in the Red Scar region of space, the largest tendril of Hivefleet Leviathan ever seen in the Imperium has converged and is making relentlessly for Baal. To face this awesome foe, Commander Dante has called upon the Successor Chapters of the ancient Ninth Legion. The Sons of Sanguinius gather in numbers not seen since the dark days of the Horus Heresy. 

Attached to Crusade Fleet Quintus - dubbed the Cursed Fleet by many - the Ultramarines of the Ithraca’s Vengeance are drawn to a stricken world. With millions enslaved, a malign necron technology siphons the souls of the innocent and heralds the Silent Kingdom’s expansion. The Ultramarines face an impossible decision: mount a desperate last stand to destroy the Pariah Nexus, or break away and damn the entire sector to bring word of this ancient foe’s resurgence to the only being capable of halting it - the Lord Primarch Roboute Guilliman.  

In the early 22nd century, humanity has spread through the solar system - and their electromagnetic signals have traveled hundreds of light years. An alien race called the Oghaldzon has decided that mankind is dangerously insane...and must be forcibly taken under control. The invasion fleet's technology is decades ahead of Earth's best. They have more ships than the human fleets combined, and a seemingly-inexhaustible number of ground troops. And they're not afraid to kill billions of people.

Jain was the lieutenant commander of an elite SEAL team. He was accustomed to order and discipline, which he used to give the men under his command that particular brand of killer instinct his unit was known for.But one day that semi-comfortable, ordered life ended when he opened his eyes to find his body replaced by a starship. His mind had become its AI core. He is somewhere in deep space. Most of his systems are badly damaged. He has no memory of how he got here, or what his mission is. Evidence points to an attack by an unknown entity.

When the Far Stars came under imperial attack, Astra Lucerne - the daughter and successor of the Far Stars’ greatest conqueror - Marshal Augustin Lucerne - rallied her father’s confederation forces to defend their worlds. They were joined in the fight by former imperial general Arkarin Blackhawk, a warrior whose skills and brutality made him infamous, and who has, for two decades, sought the redemption he knows is unreachable.