SF Supernova

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Alternate History

What if history went differently?

37 titles

Often paired with
Social SF 13Time Travel 11Hard SF 5Fantasy 2Psychic Powers 2Horror 1
Peaks in
1950s1940s1960s1930s
Explored most by
H. Beam PiperE. E. SmithRandall GarrettAlan CoganAlgis BudrysBasil WellsCarl JacobiCharles L. Fontenay
See it mapped
On the Star Map →
The Edge of the Knife
Cover of The Edge of the Knife by H. Beam Piper
The Edge of the Knife
H. Beam Piper · 1957
1 hr 6 min read
Alternate HistoryPsychic Powers
The Einstein See-Saw
Cover of The Einstein See-Saw by Miles J. Breuer
The Einstein See-Saw
Miles J. Breuer · 1932
38 min read
Alternate HistoryHard SF
The Eyes Have It
Cover of The Eyes Have It by Randall Garrett
The Eyes Have It
Randall Garrett · 1964
1 hr 7 min read
Alternate HistorySocial SF
The Fugitives
Cover of The Fugitives by Malcolm B. Morehart
The Fugitives
Malcolm B. Morehart · 1953
14 min read
Alternate HistorySocial SF
The Instant of Now
Cover of The Instant of Now by Irving E. Cox
The Instant of Now
Irving E. Cox · 1953
1 hr 6 min read
Alternate HistorySocial SF
The Other Now
Cover of The Other Now by Murray Leinster
The Other Now
Murray Leinster · 1951
19 min read
Alternate HistorySocial SF
The Sky Is Falling
Cover of The Sky Is Falling by Lester Del Rey
The Sky Is Falling
Lester Del Rey · 1954
2 hr 24 min read
Alternate HistorySocial SF
The Street That Wasn't There
Cover of The Street That Wasn't There by Clifford D. Simak
The Street That Wasn't There
Carl Jacobi & Clifford D. Simak · 1941
27 min read
Alternate HistoryHorror
The Worlds of If
Cover of The Worlds of If by Stanley G. Weinbaum
The Worlds of If
Stanley G. Weinbaum · 1949
25 min read
Alternate HistoryHard SF
The vertigo hook
Cover of The vertigo hook by Richard Ashby
The vertigo hook
Richard Ashby · 1953
12 min read
Alternate HistoryTime Travel
The world-mover
Cover of The world-mover by George O. Smith
The world-mover
George O. Smith · 1950
1 hr 43 min read
Alternate HistoryHard SF
Time Crime
Cover of Time Crime by H. Beam Piper
Time Crime
H. Beam Piper · 1955
2 hr 28 min read
Alternate HistoryTime Travel
Worlds of the Imperium
Cover of Worlds of the Imperium by Keith Laumer
Worlds of the Imperium
Keith Laumer · 1962
2 hr 56 min read
Alternate HistorySpace Opera

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