How do you usually find a good social casino to play online slots? I would like to find a social casino, but I haven't found anything interesting yet. I hope you can help me choose one.

I recently saw an ad somewhere, I can't remember where, about a social casino and that you could play games there for free. But I can't remember the name or other details of this ad. I like to play online casinos sometimes, but I think I could try this version of the game. What similar platforms are there now that offer free play on slots and other games?