The Fantasy Review’s List of 6 Science Fiction Book Series for Fans of Larry Niven’s Ringworld.
Rama by Arthur C. Clarke
From the blurb of book 1:
An enormous cylindrical object has entered Earth’s solar system on a collision course with the sun. A team of astronauts are sent to explore the mysterious craft, which the denizens of the solar system name Rama. What they find is astonishing evidence of a civilization far more advanced than ours. They find an interior stretching over fifty kilometers; a forbidding cylindrical sea; mysterious and inaccessible buildings; and strange machine-animal hybrids, or “biots,” that inhabit the ship. But what they don’t find is an alien presence. So who―and where―are the Ramans?…
The Forever War by Joe Haldeman
From the blurb of book 1:
The Earth’s leaders have drawn a line in the interstellar sand–despite the fact that the fierce alien enemy they would oppose is inscrutable, unconquerable, and very far away. A reluctant conscript drafted into an elite Military unit, Private William Mandella has been propelled through space and time to fight in the distant thousand-year conflict; to perform his duties and do whatever it takes to survive the ordeal and return home. But “home” may be even more terrifying than battle, because, thanks to the time dilation caused by space travel, Mandella is aging months while the Earth he left behind is aging centuries…
Heechee Saga by Frederik Pohl
From the blurb of book 1:
Frederik Pohl was on a streak when this Hugo Award–finalist novel was published in 1980. Now back in print after an absence of nearly a decade, this unique science fiction novel is as fresh and entertaining as ever.
The story begins when the hero of Gateway finances an expedition to a distant alien spaceship that may end famine forever. On the ship, the explorers find a human boy, and evidence that reveals a powerful alien civilization is thriving on a transport ship headed right for Earth….
Fleet of Worlds by Edward M. Lerner & Larry Niven
From the blurb of book 1:
Kirsten Quinn-Kovacs is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten’s people came from….
Foundation by Isaac Asimov
From the blurb of book 1:
For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Seldon, creator of the revolutionary science of psychohistory, can see into the future—to a dark age of ignorance, barbarism, and warfare that will last thirty thousand years. To preserve knowledge and save humankind, Seldon gathers the best minds in the Empire—both scientists and scholars—and brings them to a bleak planet at the edge of the galaxy to serve as a beacon of hope for future generations. He calls his sanctuary the Foundation.…
Hyperion Cantos by Dan Simmons
From the blurb of book 1:
On the world called Hyperion, beyond the reach of galactic law, waits a creature called the Shrike. There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all.…
