More like The Shape-Shifter Strikes

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CommonwealthUniverse
universe12 books2002
Science fiction and space opera, set in far future.
“Step aboard the train at the Second Chance terminal and ride the wormhole to another star.”
from the catalogue
Start with The Dreaming Void →
includes Chronicle of the Fallers, Commonwealth Saga, Void Trilogy
The Trade Pact UniverseSeries
series26 books1997
About aliens.
Start with A Thousand Words for Stranger →
The CultureUniverse
universe21 books1987
About artificial intelligence, set in galactic scale.
“No money, no laws, no hunger, no death you didn't choose; a galaxy-spanning anarchy of humans and drones administered, gently and with enormous irony, by superintelligent Minds who name their warships things like *Frank Exchange Of Views*.”
from the catalogue
Start with Consider Phlebas →
includes Culture
The SilkieSeries
series4 books1964
completed
Science fiction, set in far future and space.
“The Silkie follows genetically engineered amphibious humans - the Silkies - who can survive in space, the ocean depths, and on land, forming an elite corps that defends Earth against alien threats.”
from the catalogue
Start with The Silkie →
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
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