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Orange Transparent Chainsaws: The Setting

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I've been toying with the idea of either forming a new TTRPG system or simply writing a novel(la) set on Europa. I could use some advice if the chicken scratch ideas I have jotted down are at all compelling either as a setting to roleplay in or as a medium for a good story to read. Even if you think it's shit, that's feedback and I appreciate it.

To start, let's establish some real facts about Europa:
>1/7th the gravity of Earth
>1/4th diameter of Earth, but has twice as much water as all of Earth’s oceans combined
>Ice shell is between 15 to 25 km (10 to 15 mi) thick
>Ocean is between 60 to 150 km (40 to 100 mi) deep
>90% size of Luna, reflects 5.5x the sunlight of Luna
>5.2 AU from Sol, takes 45 minutes for sunlight to reach it
>Orbits Jupiter every 3.5 days, gravity-locked to always face Jupiter
>Generating a special magnetic field via electrically-conductive fluid beneath the surface
>Astrobiologists believe there might be extremophile life similar to those around deep sea vents on Earth