Try to reload the page or click something after the Unity loading.
Sometimes the server are overloaded during game jam
Viewing post in Dicey Civilization jam comments
Turns out the issue was only in Firefox, I was able to play it in Chrome.
I really like the premise of the game! The start is a bit challanging, but once you're going you'll never face any issues anymore. :D
So with that said it could use some more balancing and some more consistent art, but for a gamejam game this is pretty great!