More like Twists in Time

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Wine of the DreamersNovel
John D. MacDonaldstandalone novel1951
About virtual reality.
“Wine of the Dreamers was his first science fiction novel and one of his earliest published novels altogether.”
from the catalogue
Time TradersSeries
series7 books1958
Science fiction and time travel, adventurous in tone, set in other star systems.
“Norton, later joined by collaborators Sherwood Smith and P. M. Griffin, expanded the sequence to seven novels published between 1958 and 2002, and revised the opening book herself in 2000.”
from the catalogue
Start with The Time Traders →
Known SpaceUniverse
universe142 books1964
Set in far future.
“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, Fleet of Worlds, Man-Kzin Wars
Fifth PlanetNovel
Fred Hoyle & Geoffrey Hoylestandalone novel1963
First contact, about space exploration.
The Colors of SpaceNovel
Marion Zimmer Bradleystandalone novel1963
Space opera, about space exploration, set in far future.
“The Lhari seem peaceful and friendly, but they go to some lengths to protect their monopoly on faster-than-light travel.”
from the catalogue
Double StarNovel
Robert A. Heinleinstandalone novel1956
About political intrigue, set in far future and mars.
“Lorenzo Smythe, the excellent yet unemployed actor, meets Dak Broadbent in a bar.”
from the catalogue