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r/SciFiConcepts

20,096 subscribers
scifi ideas and concepts. These science fiction concepts can be based in hard sci-fi or can come from science fantasy. The only thing that matters is that the concepts could be reasonably found in a SF book, film or short story. If you have too many ideas to write about or are just looking for discussion then this is the right sub for you. Post your scifi concepts, ideas, plots and worldbuilding

Moderators

Updated Jul 11, 2023
u/Felix_Lovecraft Active
Added 3 years ago
Also moderates: r/ScienceFictionWriters
u/AutoModerator Active
Added 2 years ago
Also moderates: r/PiercedCock, r/FatHentai, r/NarcoFootage, r/BetweenThemTitties, r/steroidsxx, and 4039 more...

Notice: This subreddit is not actively monitored, so the posts here are only a small subset of what exists on reddit.

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Concept Worldbuilding Question
New Top (24hr) Top (Week) Top (Month)
to r/SciFiConcepts by jacky986
1 week ago
How can you build a set of power armor that addresses the following issues?
Question
to r/SciFiConcepts by Ok-Distance-8157
3 weeks ago
Another/Different Archetype Character of a Mad Scientist
Question
to r/SciFiConcepts by Dpopov
3 weeks ago
Could hard light blades cut through steel-like materials with relative ease?
Question
to r/SciFiConcepts by not_my_monkeys_
4 weeks ago
18th century naval warfare in space
Concept
to r/SciFiConcepts by Jyn57
1 month ago
What will interstellar law enforcement look like?
Question
to r/SciFiConcepts by Jyn57
2 months ago
What would organized crime in an Interstellar society might look like? And how will interstellar governments curtail it?
Question
to r/SciFiConcepts by Upbeat-Classroom-519
3 months ago
Why are most sci fi stories on youtube... like that?
Question
to r/SciFiConcepts by Thenoobin8er
3 months ago
What are your thoughts on psionics in sci-fi! I want to hear your thoughts and your experiences.
Question
to r/SciFiConcepts by MealInteresting6116
4 months ago
Orbital Drops & Drop Pods
Question
to r/SciFiConcepts by Dense-Bruh-3464
5 months ago
Heat dissipation and radiation emissions in space
Concept
to r/SciFiConcepts by Jyn57
5 months ago
What would banking and finance look like in an interstellar economy?
Question
to r/SciFiConcepts by shortweirdgirl
6 months ago
How does the idea of a time loop work?
Question
to r/SciFiConcepts by BrainMarshal
6 months ago
Bureaucracy & Red Tape / Insufficient Regulation as their own category of Great Filter or Meta Great Filter?
Concept
to r/SciFiConcepts by jacky986
7 months ago
What are the most plausible ways to power cybernetic implants?
Question
to r/SciFiConcepts by TheWarGamer123
7 months ago
Question About FTL Travel
Question
to r/SciFiConcepts by External-Grade1976
9 months ago
Could Blue stars that include Neutron stars/pulsars, QWR similar to HD 45166, B-type star slightly less massive than Regulus that experienced a similar mass transfer, and a 20124 kelvin White dwarf star be hypothetically terraformed?
Question
to r/SciFiConcepts by SunderedValley
11 months ago
Need help finding a third spaceship aesthetic
Worldbuilding
to r/SciFiConcepts by TheBuddhistTraveler
1 year ago
Is it possible time may move/work like a reverse Alcubierre warp drive theory?
Concept
to r/SciFiConcepts by TheBuddhistTraveler
1 year ago
Religion based on Time.
Concept
to r/SciFiConcepts by ncfatcat
4 months ago
AI becomes human
Concept