So I have like 5 fictional universes and I'm gonna list them here and now so people can look back on my ramblings and see the corresponding tags. I'll be brief with their descriptions.
MOONDROP: An extremely complex and alien fantasy world with aetherpunk and soulsborne inspiration. By far the most compex.
PAPERWHITE: An RPG based around a world made of school supplies of random sizes, including the people. Different classes are different zones.
Y2K SPACE ODDITY: A pseudo-eutopian galactic setting where culture is frozen like in Fallout but instead it's 1990-2015 stuff.
SUB-URBAN: Remixed united states where cryptids and urban legends are real and publicly known things, lot of witchcore and the rustbelt is like half the country.
Undertale;Re: Basically an expanded underworld with additional kingdoms, places and extra world building.