have seen this kind of projects ,not based on dice , but the PVP model in general
hate to disappoint you , but it won't be a hit
I don't know your coding skills but the main drawbacks of such a project :
1. high average stake time- you have to find an opponent , it takes time and on some sites I saw people praying for anyone at all to accept their bet , after a couple of days of waiting
2. provably fair implementation , difficult to prove that your opponent is not a house bot with advantage
3. low total market for this sort of games , people are used to playing vs a casino with a 1% house edge
so there won't be a que to join the game ,I'm afraid
and similar project never took off , name a single PVP casino that is popular , I dare you
all in all , a PVP game or two on a casino can work , a 100% PVP based casino , most likely won't
This is what I asked above, the major difficulty of PVP and not just for dice, is to gain a LOT of players. Even for mobile apps when doing PvP for popular ones,,, you can wait even 1 or 2 minutes and that is the wait that is not worth for a lot people including me. Gamblers I believe have an even lower waiting willingness.
So the key is to code in where you can put the bet and go offline and leave it in some sort of smart contract, and a way to encourage people to join because you needs 100 people immediately for every game otherwise it does not work.
unfortunately , this problem has not been solved
on chain games have their own limitations vs offchain games
but again , the main problem of PVP is the waiting time between the bets
why wait when you can gamble away 2-3 bets per second on provably fair , established casinos like Bitvest or Stake?
you got to offer something really special for people to join and stay on the site , otherwise it is going to be yet another stillborn project
