Spaghetti Kart (The Recompilation I play on) has a Track Maker i think and i believe you can share tracks between players, but i’m not sure how good any of the custom tracks are.

The newer ones are pretty but there’s too much going on in many of the tracks (and I’m really not fond of the flying/water thing they do either).

I do agree though about the newer ones, it has way too much going on in the courses. Furthermore, Me and My friends are in disagreement but i think the roster is too big and there’s too many tracks