
What makes Sci-fi good is not the flashy gadgets or nigh obligatory dystopian theme a lot of Sci-fi has nowadays. What I believe makes a good Sci-fi story is how it showcases a possible future for humanity, or altered history. Sci-fi is an amazingly broad template in which you can imprint the most fantastical scenarios in it, Nausicaa and the Valley of the Wind, Dune, Blame!, Mortal Engines, Neuromancer and more are perfect examples of this.
Realism, ironically. Take Dune where the spice trade is basically just the oil industry. Find the real world equivalent of whatever concept you’re inventing and research it to the greatest extent possible. Also remember that people are people and think and act and feel the same regardless of context
read lots of sci-fi and come to your own conclusions, i’d say. but in my opinion, i think some of the best or, i suppose, most lasting sci-fi is that which can somewhat accurately predict the future—or imagine some plausible ones. that means being intimately familiar with both the past and the present moment in time.
I was inspired by a game called Subnautica. Basically Earth died because no one took care of it, and the survivors all went to space and live in a space station. They travel to different planets to try and find a new home. I have it so there is one person on an oceanic planet by themselves first, but this person misses the check in with their crew, so someone comes down to investigate. The person is missing and this new person has to go through everything their crew member researched and has to-
I love subnautica I’m doing my first ever playthrough of it right now actually. Honestly I think you have a very promising concept, makes me think of The Martian and Interstellar a little bit. I’m currently writing my own sci-fi at the moment as well. Though it is more heavily inspired by things like Castle in the Sky, Behold the Machine by The Vernian Process, and classic Jules Verne tales.