Narrowing your focus is the first step: science-fiction readers are famously particular, each sub-genre carrying its own promises and expectations — hard SF demands plausible science and consequence, space opera wants sweep and politics, cyberpunk looks for grit and systems critique — and an indie novel that tries to be everything risks pleasing no one. Identify the sub-genre and lean into its core tropes thoughtfully; signalling matters: don’t hide behind the broad label “science fiction,” but use blurbs, categories and copy to tell readers whether they’ll find a near‑future surveillance dystopia, a rigorously scientific first‑contact, or a melancholic solarpunk about repair and ecosystems. Clear signalling reduces discovery friction on algorithmed platforms and places your book where niche fans already search. Write trope‑aware fiction that still surprises — respect the conventions readers rely on, then reward their genre literacy with a distinctive twist: an unexpected ethical dilemma, a novel technological limitation, or a protagonist’s reframing of the familiar — because consistent delivery plus smart subversion builds trust and word‑of‑mouth in communities that prize consistency.