Welcome to Elathia, a world where humans live on 8 islands that float in the sky. Capital Island is rich and orderly, while Zarch is, well, the exact opposite... A tale of magic and wonder to find oneself.
You can imagine this story in whatever setting you like, medieval, modern or anything, but what I had in mind is sort of steampunk. for those of you that don't know what the hell I'm talking about here is a brief description: Victorian England with steam machines everywhere, basically.
A good example would be the game Bioshock: Inifinte
A picture is worth a thousand words sometimes -> https://psmedia.playstation.com/is/image/psmedia/ps3-game-6502-ss62?$MediaCarousel_Original$
and another one -> http://vignette1.wikia.nocookie.net/bioshock/images/f/fb/Comstock_Center_Rooftop-01.png/revision/latest?cb=20130520072849