How about you think of an idea that's never been done, rather than stealing. Slots are boring, let's face it. How about you let users bet on something other than some spinny wheels? MoneyPot was great, think of more like it.
Gambling only interesting when we can control our bettings (like Moneypot ) , but diggit.io is easy to win than moneypot 
( my opions)