More like Ancient Relics

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HeecheeSeries
series19 books1972
completed
About aliens and space exploration.
“The Heechee are an advanced alien race that visited the Solar System hundreds of millennia ago and then mysteriously disappeared.”
from the catalogue
Start with Gateway →
Against a Dark BackgroundNovel
Iain M. Banksstandalone novel1993
Tense in tone, about heist and found family.
Known SpaceUniverse
universe142 books1964
About aliens.
“Give a clever species a few centuries and a working fusion drive, and it will fill the sky with problems.”
from the catalogue
Start with Ringworld →
includes Ringworld, Fleet of Worlds, Man-Kzin Wars
DuneUniverse
universe78 books1963
About political intrigue.
“The desert planet, where empire runs on a single substance: the spice melange, which folds space, prolongs life, and unlocks prescience, and which exists nowhere else in the known universe.”
from the catalogue
Start with Dune →
includes Dune, Dune Sequels, Dune Prequels, Heroes of Dune, Background of the Dune Universe
Zero Stone / Murdoc JernSeries
series2 books1968
completed
Science fiction, about magical artifacts, set in far future and other star systems.
Start with The Zero Stone →
RiverworldSeries
series37 books1965
About faith and religion.
“The Riverworld is an artificial, or heavily terraformed, planet where all humans who ever lived throughout history have been resurrected.”
from the catalogue
Start with River of Eternity →