There were some sites which gave even negative edge but we all know what happened to them.
So if a site is giving 0% edge then it is obviously for temporary.
Most sites like Primedice would give 0% edge or even negative house edge however then they have no protection against bots. Most sites allow API for bettin, so even if they disabled that. Someone can still do some macro for a computer to take bets for them. And in the end... the casino would actually be at a disadvantage.
I am pretty sure that fairlay.com offers this kind of game. You should check it out
If what you are saying is based on pvp games sure may be it will be no house edge though but for your fee that let say owner host your game, there will be fee that be deducted from our winning right? Do you count this too? Usually owner of the site will offer really high fee for each payout of pvp games let say 5% that mean if you bet 1 btc to win 2 btc deduct by 5% so you will only get 1.95 instead of 2 btc
Nope, I were even talking about a PlayervPlayer coinflip game that is opensource, just like openbazzar.
So we won't need to pay any un-necessary fees to the site owners, it is useless.
I am pretty surprised that no one did it already, but it is going to happen for sure, we just need to donate the funds to the right devs to do that.