.
How does it make money?
Well, when people make deposits and gamble on your site, they will 100% lose if they continue playing.
This is not looking serious I think and it means you are not sincere with your script (if you really having something like it for building of casino). Casino have losses and win against players but taking away the chances of losing to get investment attraction from investors is not act of sincerity that you are making here. Gamblers win and lose so is no 100% for casino.