Quadronos

Quadronos is a planet with large tectonic plates that causes earthquakes every day, and fissures to appear. Because all of these Earthquakes are daily and how many creatures fell into the fissures, The creatures made their cities in the sky, Every road, building, etc are hovering because of hover engines attached to the bottom of the structure, Now all kinds of creatures live here, Quadronos has a huge industry for ships because the creatures really know how to make engines, they usually send ship parts to other planets. There is only one city in the sky, and this is huge, above the clouds and with everything a city on the ground would have, if you were standing on the middle of it, you couldn't tell you were floating.