Fred Saberhagen

Long, long ago, two alien races fought a war of extinction. All that is left of either of them are the berserkers: vast, thinking, spacefaring, killer machines whose sole purpose is to destroy all living things. For the first time in all of their history, they have met a life form that has a chance of stopping them. In the cold reaches of space, the berserkers seize a floating laboratory full of human germ-plasm being stored for retrieval and growth

...

The Empress of the Eight Worlds has been assassinated. Prince Harivarman, exiled on the Templar Radiant, suspects that he will be the next victim. Help is scarce: Anne Blenheim, the fortress' clear-eyed, fair Commander, is favorably disposed toward the Prince, but her first responsibility is to the Templar High Command. And Chen Shizuoka, a Templar recruit sympathetic to Harivarman's cause, is being stalked by planetary security forces. When Prince...

In the distant future, society has crumbled. Dark forces now rule the land, keeping all humans under their oppressive thumbs. But behind the darkness there is talk of rebellion. In the swamps, a small band has formed, determined to regain their freedom with the help of one incredible weapon—a weapon of technology. It is the mystical Elephant, and whoever masters it holds the key to freedom—or defeat.

The great blue Berserker's destruction of the human colony Shubra was swift and merciless. And when it was over, Niles Domingo's daughter lay among the dead. Now Niles is a man with a mission: vengeance at any cost. With one small ship, Niles sets out against the great Berserker called Leviathan, tracking it through the interstellar mists of the Milkpail Nebula. He is sure he is ready for anything, but nothing can prepare him for the astonishing discoveries...

Harry Silver has already had a lifetime of trouble from ordinary Berserkers, the automated killing machines programmed an age ago to denude the galaxy of life. And now one of these machines has gone rogue—and kidnapped his own family. What worse devilry will a deviant killing machine attempt? How will he stop it? And even if he can, will he ever see his family alive again?

Chance Rolfson, a direct descendant of Rolf, an illustrious warrior who fought for humanity years ago, joins a forest expedition that seeks physical proof of Ardneh's existence and finds a surprising link to his own past.

Shiva, a Berserker computer, has developed a strategy that can destroy entire worlds, and now the residents of a distant planet must struggle to save their world from Shiva's unstoppable power.

Master storyteller Fred Saberhagen continues his bestselling Berserker series, detailing humanity's war with the dreaded juggernaut-like machines programmed to destroy all life in the galaxy. On the Twin World planets, Prairie and Timber, Plenipotentiary Gregor is determined to serve his government-even if it means executing innocent Huvean hostages, invaders from another planet-and even though Gregor's own granddaughter, Luon, is in love with a Huvean....

There were Twelve Swords, created as the playing pieces in a whimsical game of the gods. Into each Sword was placed an awesome power, to vanquish in battle, or slay by even more horrible means, to deceive an enemy's eyes, or destroy his soul, to bestow unfailing luck, or to heal. These swords were cast into the kingdom of men both good and evil.