Use TurboWarp: https://turbowarp.org/1284799297/ Click and Drag to look around, zoom with the scroll wheel, adjust the sliders and click the green flag to generate new terrain.
Uses spherical harmonics to generate the terrain https://en.wikipedia.org/wiki/Spherical_harmonics The equation for the spherical harmonics I borrowed from here: https://www.desmos.com/calculator/nsfrepxacm 3D engine comes from my game: https://scratch.mit.edu/projects/1116871901/ I used spherical harmonics because I don't know of that many other functions that don't bunch up at the north and south poles, and I wanted to try generating terrain on a sphere. Sometimes it generates more symmetric/asymmetric than I'd like it to, but I didn't have much more time to work on it. To get a better understanding of the spherical harmonics, use this graph: https://www.desmos.com/3d/gaq7eaqeef