I've tried clicking play but nothing happens.
Since the game is made in Godot, I think you also have to upload the .pck file that is created when exporting the project.
Viewing post in The Casino Rumble jam comments
no, i embedded the pck, it was an issue with the file names, but i fixed it here if you'd still like to check it out https://sleepiiraven.itch.io/the-casino-rumble-fixed