More like The Antaran Codex

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Known SpaceUniverse
universe142 books1964
Science fiction, about aliens, set in far future and space.
“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
HeecheeSeries
series19 books1972
completed
Science fiction and space opera, about aliens and space exploration, set in far future and space.
“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 →
The AvatarNovel
Poul Andersonstandalone novel1978
Adventurous in tone.
“With the aid of the political opposition, they escape and journey through the portal in search of knowledge, and perhaps even to meet those who created the portal system.”
from the catalogue
CoDominiumUniverse
universe98 books1971
Military science fiction.
“The body of work runs along a few hard threads rather than one line.”
from the catalogue
Start with The Mote in God's Eye →
includes Moties, Falkenberg's Legion, Laurie Jo Hansen, War World
QuadrailSeries
series5 books2005
Science fiction and space opera, mysterious in tone, about aliens and political intrigue, set in far future and space.
“Paired with the telepathically gifted Bayta, Compton investigates and fights the Modhri, a parasitic group-mind quietly seizing control of galactic leaders from within.”
from the catalogue
Start with Night Train to Rigel →
FoundationUniverse
universe123 books1940
About robots.
“There is a science that reads the future of quadrillions the way an astronomer reads the orbits of stars.”
from the catalogue
Start with Foundation →
includes Trantorian Empire, Foundation, Second Foundation Trilogy, The Positronic Robot Stories, The Collected Fiction of Isaac Asimov, Foundation (Original Stories)