Science fiction genre

time-travel fiction science fantasy paranormal romance parallel universe fiction dystopian fiction cyberpunk tech noir mundane science fiction speculative evolution spy-fi steampunk cybernetic revolt New Wave science fiction feminist science fiction alien invasion planetary romance zombie apocalyptic fiction imaginary voyage Libertarian science fiction Christian science fiction Afrofuturism apocalyptic fiction scientific romance space Western mecha near future fiction space opera black science fiction Dying Earth cyberpunk derivative form techno-thriller sword and planet hard science fiction recursive science fiction science fiction opera science fiction Western future history science fiction comedy military science fiction soft science fiction social science fiction