More like Timeliner

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Known SpaceUniverse
universe142 books1964
Set in space and other star systems.
“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, Ringworld, Fleet of Worlds
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 First Formic War, Ender's Shadow, Second Formic War, Ender Wiggin, Fleet School
Old Man's WarSeries
series16 books2005
Military science fiction and space opera, set in space and other star systems.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
Pax / AstraSeries
series2 books1954
completed
Science fiction, adventurous and tense in tone, about survival, set in far future.
“Star Flight appears to be a later omnibus or reissue rather than a third original novel.”
from the catalogue
Start with The Stars Are Ours! →
Empire of ManSeries
series4 books2001
Military science fiction and space opera, set in other star systems.
Start with March Upcountry →
Alliance-UnionUniverse
universe173 books1976
Science fiction, set in far future.
“Around that spine cluster the merchanter novels of trader Families, the Faded Sun trilogy of human envoys among the martial alien Mri, and the Chanur books, narrated from the hierarchical, whiskered viewpoint of the hani.”
from the catalogue
Start with Heavy Time →
includes Chanur, Mri Wars, Company Wars, Hanan Rebellion, Era of Rapprochement, The Hinder Stars, Age of Exploration, Unionside