I found the game really confusing to actually progress, and the game closing when you lose certainly doesn't help anything. From what I can tell, the player is supposed to earn coins to make each roll more valuable, to earn more coins and somehow be able to get more rolls until they can make the winning roll. I didn't see how I was supposed to actually get more money or more rolls though, as I didn't have enough starting money to progress from what I could tell.
The premise does seem really interesting though, I think that it just needs more put into it to really show what it should be.