More like Four for the Future

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VattaUniverse
universe10 books2003
Space opera and military science fiction, tense in tone, set in other star systems.
“Get kicked out of the Academy and the family still hands you a ship.”
from the catalogue
Start with Trading in Danger →
includes Vatta's War, Vatta's Peace
DuneUniverse
universe78 books1963
Space opera, set in 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 Sequels, Dune Prequels, Heroes of Dune, Background of the Dune Universe
JanissariesSeries
series4 books1979
Military science fiction, tense in tone, about slavery, set in other star systems.
“Janissaries are an American series of military and political-based science fiction novels are set in an interstellar confederation of races, in which humans are a slave race entrusted with military affairs and law enforcement.”
from the catalogue
Start with Janissaries →
The AlgebraistNovel
Iain M. Banksstandalone novel2004
Space opera, about aliens, set in other star systems.
StenSeries
series11 books1982
completed
Space opera and military science fiction.
“The Sten Chronicles, also called The Sten Adventures, are a series of eight military science fiction and space opera novels by Chris Bunch and Allan Cole published from 1982 to 1993.”
from the catalogue
Start with Sten →
Starship TroopersNovel
Robert A. Heinleinstandalone novel1959
Military science fiction, about coming of age, set in other star systems.