in vrchat Udon, using UdonSharp. Tile faces are from https://github.com/FluffyStuff/riichi-mahjong-tiles .
Football model is from https://sketchfab.com/3d-models/wilson-football-b5677cbb469d4be98e4777c244cfcf27
There's a speedtree oak tree in the published world that I've excluded from the repo (since I didn't make it), but other than that the repo should reflect the published vrchat world.
CC0 / public domain, as much as you want to believe in that fiction.