More like Confluence

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DuneUniverse
universe78 books1963
Science fiction and space opera, about political intrigue, set in far future and other star systems.
“The desert planet, where empire runs on a single substance: the spice melange, which folds space, prolongs life, and unlocks prescience, and which exists nowhere else in the known universe.”
from the catalogue
Start with Dune →
includes Dune, Dune Prequels, Heroes of Dune, Dune Sequels, Background of the Dune Universe
TeixcalaanSeries
series2 books2019
Tense in tone, about identity.
“A Memory Called Empire and A Desolation Called Peace pair court intrigue with Mahit's conflicted, outsider fascination with an empire she can't help admiring.”
from the catalogue
Start with A Memory Called Empire →
FoundationUniverse
universe123 books1940
About robots.
“There is a science that reads the future of quadrillions the way an astronomer reads the orbits of stars.”
from the catalogue
Start with Foundation →
includes Trantorian Empire, Foundation, Second Foundation Trilogy, The Collected Fiction of Isaac Asimov, The Positronic Robot Stories, Foundation (Original Stories)
RadchaaiUniverse
universe11 books2012
About identity, set in space.
“Civilization is what the Radch calls itself, and civilization is a courtesy extended at gunpoint.”
from the catalogue
Start with Ancillary Justice →
includes Imperial Radch
2312Novel
Kim Stanley Robinsonstandalone novel2012
Hard science fiction, about genetic engineering and terraforming, set in space.
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