Duisberg is one of thousands of planets plunged into darkness and chaos by the collapse of the galactic republic, but where other worlds have begun to rebuild a star-travelling culture, Duisberg remains in an uneasy balance between mud-brick civilization and bloodthirsty barbarism. The people of Duisberg have a god: Zentrum, a supercomputer from the ancient past. Zentrum has decided to avoid another collapse by preventing civilization from rising from where it is. 

In Northern India, the Malwa have created an empire of unexampled evil. Guided or possessed by an intelligence from beyond time, with new weapons, old treachery, and an implacable will to power, the Malwa will sweep over the whole Earth. Only three things stand between the Malwa and their plan of eternal domination: the empire of Rome in the East, Byzantium; a crystal with vision; and a man named Belisarius, the greatest commander Earth has ever known....

In the sequel to The Shadow of the Lion, the demon sorcerer Chernobog, having failed in his attempt to gain power over Venice, enters into a dangerous alliance with the King of Hungary to seize control of Corfu, an island that holds the key to controlling the Adriatic, while the heroes who had saved Venice reunite to stop him. 

A cosmic accident sets the modern town of Grantville, West Virginia, down in war-torn 17th-century Europe, and a new nation is forged. Now after carving a place for itself among the struggling powers of Western Europe, Grantville must throw up its eastern bulwarks against Dark Age domination. But the challenge for the down-time Eastern European horde is just as great: how to crawl out of a deeper feudal shadow than any in the West - and step into the light of freedom.

Judea, AD 66. A Roman legion suffers a smashing and catastrophic defeat at the hands of an angry band of Hebrews armed with only slings and spears. Knowing Emperor Nero's revenge will be swift and merciless, they must decide how to defend their land against the Roman invasion. Caught up in the tumult is the mason Judah, inadvertent hero of Beth Horon, who now finds himself rubbing shoulders with priests, revolutionaries, generals, and nobles, drafted to help defend the land of Galilee.

Rome is reeling from the after-effects of a civil war. The troops that marched through Italia have left a wave of destruction. A vindictive message, left on the wall of a family estate, galvanizes Ursa’s father into tracking down the perpetrators and seeking answers. Before undertaking his quest, the sickly former centurion informs his son Ursa that he is adopted. Caught between two worlds, Ursa seeks both to remedy the cause of his father’s dishonor and learn more about his heritage. 

The year is AD 66, and the Roman province of Judea has exploded in rebellion. Far from being a revolution of unified peoples, the various Jewish factions of Sadducees, Zealots, Sicarii, and Edomites are in a state of civil war; as anxious to spill the blood of each other as they are to fight the Romans. The Judeans find hope when the Romans commit a serious tactical blunder and allow their forces to be ambushed and nearly destroyed in the mountain pass of Beth Horon. 

Imperial Intelligence couldn't find them, the Imperial Fleet couldn't catch them, and local defenses couldn't stop them. It seemed the planet-wrecking pirates were invincible. But they made a big mistake when they raided ex-commando leader Alicia DeVries' quiet home/work, tortured and murdered her family, and then left her for dead. Alicia decided to turn "pirate" herself, and stole a cutting-edge AI ship from the empire to start her vendetta. Her fellow veterans think she's gone crazy, the Imperial Fleet has shoot-on-sight orders. And, of course, the pirates want her dead, too.

Lord Regent Geder Palliako's great war has spilled across the world, nation after nation falling before the ancient priesthood and weapon of dragons. But even as conquest follows conquest, the final victory retreats before him like a mirage. Schism and revolt begin to erode the foundations of the empire, and the great conquest threatens to collapse into a permanent conflict of all against all. In Carse, with armies on all borders, Cithrin bel Sarcour, Marcus Wester, and Clara Kalliam are faced with the impossible task of bringing a lasting peace to the world.

Mars is changing. Seemingly overnight the once "Red" planet is turning to gray. Something is happening, something unnatural. A team of, literally, rocket scientists figure out a way to send a probe, very fast, to Mars to determine how and why it is changing. However, when the probe is destroyed well short of the formerly red planet, it's apparent that Mars is being used as a staging ground. The only viable target for that staging ground is Earth.  

The first novel of the rise and fall of the Drakan Empire, an alternative history saga. In Marching Through Georgia, the Draka begin their conquest of the globe as they fight and best that more obvious horror, the Nazis.

The world died long ago, leaving only a few here and there to rebuild. Their world had once been grand and magnificent, but too much was lost in the years after the time known as the Dying. Knowledge that had been gained over centuries disappeared from the world, lost when those who carried that knowledge died with it. 

When Adelko is assigned to legendary exorcist and witch hunter Horskram, he expects an adventurous life. Death by adventure isn’t what he had in mind - but it seems the only outcome when they learn of a sorcerous theft that threatens the world. The thief wants to silence them - permanently. And so, Horskram and Adelko flee from one danger to another as the Jarl of Thule leads a rebel army against the King of Northalde, plunging the realm into conflict. And on the Other Side, demonkind reawakens.

The (Sort of) Dark Mage is the story of a young man named Waldo who grows up in a world where monsters, the undead, and dark magic are part of everyday life. He is forced to go on a journey to prove himself and soon discovers that his beliefs don't fit into the wider world.

Earth is conquered. The Shongairi have arrived in force, and humanity’s cities lie in radioactive ruins. In mere minutes, over half the human race has died. Master Sergeant Stephen Buchevsky, who thought he was being rotated home from his latest tour in Afghanistan, finds himself instead prowling the back country of the Balkans, dodging alien patrols and trying to organize the scattered survivors without getting killed.