There are several provably fair off-chain dice games already. What are you thinking of that these don't already have?
I want to make a game, so looking for ideas. Think of simple dice game like satoshidice but the multiple tosses are done off the chain and finally amount is withdrawn. (I think new satoshidice works like this).
Basically want to generate a sequence of random numbers connecting an "initial" transaction and a "final" transaction, such that users and public can verify fairness.