IMO just do a provably fair game, no need to show your identity probably. You can find info about provably fair methods on this forum.
I agree with this and indeed for gambling a site I think anonymous is not a big deal (people will only make small bets anyway).
Please don't spam the blockchain though.

Indeed i HATE blockchain spam, dont worry i wont do that

Its only hard in my case to explain that is provably fair, but ill try, and if i cant i will show my identity!