More like Probability Moon

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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, War World, Falkenberg's Legion, Laurie Jo Hansen
HeecheeSeries
series19 books1972
completed
Space opera, about space exploration, set in 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 →
Naked to the StarsNovel
Gordon R. Dicksonstandalone novel1961
Military science fiction, about amnesia.
“The subject of the cosmic soldier has become a matter of concern for the science fiction reader.”
from the catalogue
The Gates of EdenNovel
Brian Stablefordstandalone novel1983
About space exploration.
“The explorer vessel Ariadne had gone toward galactic center and was considered lost - until its call was heard appealing for a xeno-biologist.”
from the catalogue
Known SpaceUniverse
universe142 books1964
Set in 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
Probability UniverseSeries
series4 books1996
Science fiction, tense in tone, about aliens and war, set in far future and other star systems.
Start with The Flowers of Aulit Prison →