I saw that there is quite some ICO's from casinos.
I looked only into Sp8de ICO, and it looks like a lot of fun.
each token someone buys (1 token in presale is 0.01USD) and each token has a chance of wining jackpots. There will be 4 jackpost during presale and ICO sale.
Besides that it looks like that will be just a platform where casino will take some cut, but anyone can host private games (with friends and familiar people) or public games with anyone.

If you stumble upon some fun casino ICO please let me know.