Actually I'm looking for gambling sites with minimum loss. Here is few sites I've tried till today.
Bustabit - Total loss of $60
Primedice - Lost $10
Sathoshimines - Profit $4 (This site is getting harder day by day)
unknown - profit $15 (Invested very little site pays in mbtc site like this I'm looking for)
If you have any real poker game then recommend me I'll try it. Similar sites like taxas holdem poker.
If you want to lossless then no need to search any particular site because you can do this on all sites. If you load an amount which you want to lose, then it will be a minimum amount for you. No such sites like you can lose minimum and can win a big amount. It all depends on luck.