More like Catseye

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Known SpaceUniverse
universe142 books1964
Set in 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, Man-Kzin Wars, Fleet of Worlds
The Colors of SpaceNovel
Marion Zimmer Bradleystandalone novel1963
Space opera, about space exploration, set in space.
“The Lhari seem peaceful and friendly, but they go to some lengths to protect their monopoly on faster-than-light travel.”
from the catalogue
Starship TroopersNovel
Robert A. Heinleinstandalone novel1959
Military science fiction, about war, set in space.
HeecheeSeries
series19 books1972
completed
Space opera, about space exploration, set in space.
“The Heechee are an advanced alien race that visited the Solar System hundreds of millennia ago and then mysteriously disappeared.”
from the catalogue
Start with Gateway →
Red PlanetNovel
Robert A. Heinleinstandalone novel1949
About space colonization, set in mars.
“A boy colonist on Mars takes his bouncing ball Martian pet with him to boarding school, but the new Headmaster is a controlling tyrant.”
from the catalogue
The AvatarNovel
Poul Andersonstandalone novel1978
Space opera, about space exploration and political intrigue, set in space.
“With the aid of the political opposition, they escape and journey through the portal in search of knowledge, and perhaps even to meet those who created the portal system.”
from the catalogue