Very satisfying to play! The spherical world is implemented quite well and is visually appealing :)
I’m playing this on an older laptop with a semi-low framerate right now and the movement is inconsistent. I suspect the cause may be that you may not have used a fixed timestep for the movement, so that is something to consider for next time ;)
I found it interesting that one side of the planet is dark. Kind of adds an element of “oh heck, I shouldn’t dodge to the right or I’ll go into the low-visibility zone!” which spices up gameplay.
Overall: Very good job on the game!