More like Retief's War

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The Hitchhiker's Guide to the GalaxyUniverse
universe18 books1979
Humor.
“The Earth is scheduled for demolition to make way for a hyperspace bypass, and honestly, nobody filed the paperwork properly.”
from the catalogue
Start with The Hitchhiker's Guide to the Galaxy →
includes Hitchhiker's Guide to the Galaxy, Dirk Gently
Heaven Chronicles / Zones of ThoughtSeries
series8 books1976
Science fiction and space opera, set in far future and space.
Start with The Outcasts of Heaven Belt →
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
The Sirens of TitanNovel
Kurt Vonnegut & Jr.standalone novel1959
Set in mars.
The Android's DreamSeries
series2 books2006
Humor, about genetic engineering, set in near future.
“John Scalzi's The Android's Dream follows ex-soldier Harry Creek as the hunt for a replacement leads him to Robin Baker, an ordinary woman carrying hidden sheep DNA that makes her the key to avoiding a war.”
from the catalogue
Start with The Android's Dream →
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, War World, Laurie Jo Hansen