More like Calamity Awakening

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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 Man-Kzin Wars, Fleet of Worlds, Ringworld
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
Ender's GameUniverse
universe39 books1977
Science fiction, set in far future.
“To beat your enemy you must first understand him so completely that you love him — and in the instant you love him, you destroy him.”
from the catalogue
Start with Ender's Game →
includes Ender's Shadow, Ender Wiggin, First Formic War, Second Formic War, Fleet School
Old Man's WarSeries
series16 books2005
Military science fiction.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
Berserker (Fred Saberhagen)Series
series59 books1963
About robots and artificial intelligence.
Start with Berserker →
HonorverseUniverse
universe83 books1993
Military science fiction.
“At the center stands one officer, Honor Harrington — captain, then something far larger — and the six-limbed empathic treecat who rides her shoulder.”
from the catalogue
Start with On Basilisk Station →
includes Saganami Island, Honor Harrington, Worlds of Honor anthologies, Wages of Sin, Expanded Honorverse, Honor Harrington Universe short fiction, Manticore Ascendant, Star Kingdom (Honor Harrington)