-snip- So far I haven't come across any completely fair dice game. It was either a scam or the casino is taking some fees. -snip-
Casino taking fees doesn't mean that they are scamming. If they take fees without letting anyone know (might include in their ToS or FAQ), then you can call them a scam. But I doubt anyone does that.
every gambling site does require a fee and that fee is withdrawal fee . house edge can also be another form of fee because this is the way that casino earns .
as long as both of the withdrawal fees and house edge are not too much and add in if the site is provably fair , i still think that the casino is legit .