Ringworld

Larry Greenberg's telepathic tendencies had been trained and developed to a critical level. The trouble was that if these psychic interchanges were strong enough, a man could end up not knowing who he really was. And when Larry's mind is taken over by a sinister alien force, he has to fight to retain his sanity - and divert a disaster that threatens all mankind...

"Snappy, ingenious, and upbeat." - Galaxy

Made the 1st ballot for the 1967 Nebula

Jaybee Corbell awoke after more than 200 years as a corpsicle -- in someone else's body, and under sentence of instant annihilation if he made a wrong move while they were training him for a one-way mission to the stars.

But Corbell picked his time and made his own move. Once he was outbound, where the Society that ruled Earth could not reach him, he headed his starship toward the galactic core, where the unimaginable energies of the Universe wrenched the fabric of time and space and promised final escape from his captors.

Then he returned to an Earth eons older than the one he'd left...a planet that had had 3,000,000 years to develop perils he had never dreamed of -- perils that became nightmares that he had to escape...somehow!

The colonists from Earth have spent a century in cold sleep to make the first journey, one way, to settle a planet in another solar system. Avalon seems perfect, a verdant, livable world still in its prehistoric age. The biologists and engineers who busy themselves planting and building scoff at the warnings of professional soldier Cadmann Weyland until a large, unnaturally fast and cunning predator begins stalking the colony. Learning how to kill the beast is only the first step, for they must then reevaluate their entire understanding of Avalon's ecology.

Lot of 2 Del Rey Hardcover Books.

For the safety of mankind, the aliens called Moties have been quarantined for 25 years (see THE MOTE IN GOD'S EYE) and are now poised to break out of their solar system and spread rapidly into humanity's space. Kevin Renner, Horace Bury, Rod Blaine and other characters introduced in THE MOTE IN GOD'S EYE must now find new ways to cope with the inevitable Motie expansion while trying to protect humanity. Sequel to the novel Robert A. Heinlein called "Possibly the finest science fiction novel I have ever read."

Having been shot down over the North Dakota glacier, two Space Habs astronauts find themselves paralyzed by the Earth's gravity and at the center of a ruthless manhunt by the United States government.

A deadly murderer adds real danger to the simulated challenges of a computerized fantasy world

A classic novel of known space

Phssthpok the Pak had been traveling for most of his thirty-two thousand years. His save, develop, and protect the group of Pak breeders sent out into space some two and a half million years before . . .

Brennan was a Belter, the product of a fiercely independent, somewhat anarchic society living in, on, and around an outer asteroid belt. The Belters were rebels, one and all, and Brennan was a smuggler. The Belt worlds had been tracking the Pak ship for days—Brennan figured to meet that ship first . . .

He was never seen again—at least not by those alive at the time.

When leaving Earth, the crew of the spaceship Discipline was prepared for a routine assignment. Dispatched by the all-powerful State on a mission of interstellar exploration and colonization, Discipline was aided (and secretly spied upon) by Sharls Davis Kendy, an emotionless computer intelligence programmed to monitor the loyalty and obedience of the crew. But what they weren’t prepared for was the smoke ring–an immense gaseous envelope that had formed around a neutron star directly in their path. The Smoke Ring was home to a variety of plant and animal life-forms evolved to thrive in conditions of continual free-fall. When Discipline encountered it, something went wrong. The crew abandoned ship and fled to the unlikely space oasis.
Five hundred years later, the descendants of the Discipline crew living on the Smoke Ring no longer remember their origins. Earth is more myth than memory, and no recollection of the State remains. But Kendy remembers. And just outside the Smoke Ring, Discipline waits patiently to make contact with its wayward children.

Come to Larry Niven's Universe and meet all the Thrints, Bandersnatchi, Puppeteers -- and a host of other wonderfully created characters.
Visit Lookitthat, Down, and Jinx -- indeed, an entire galaxy of planets found only in these stories that trace man's expansion and colonization throughout Known Space.
A spectacular cycle of the future . . . a 10,000-year history of man on Earth and in space!

They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star.

The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods.

Now the conquerors are descending on the American heartland, demanding servile surrender--or death for all humans.

THE LUCKY ONES WENT FIRST…

The gigantic comet has slammed into Earth, forging earthquakes a thousand times too powerful to measure on the Richter scale, tidal waves thousands of feet high. Cities were turned into oceans; oceans turned into steam. It was the beginning of a new Ice Age and the end of civilization

But for the terrified men and women chance had saved, it was also the dawn of a new struggle for survival—a struggle more dangerous and challenging than any they had ever known….