Exclusive slots in US social casinos

I love finding cool slots that only exist in one social casino. I find it very interesting, as if I were a pioneer in my own gaming world. At one time, Big Bass Splash was only available on 5spin when the service was just starting out. Over time, the game gained popularity and began to appear on other platforms. What exclusive slots have you found in US social casinos?

 

By the way, is this social casino still working? I was thinking of creating an account there, but for some reason I changed my mind. I can't remember why, as it was 3 or 4 years ago. But I will remember this fishing game for a long time. I caught a goldfish in American Luck Sweepstakes Casino that brought me 500 GC in one fell swoop. By the way, there is a slot there that I haven't seen anywhere else, called Combo Seven. Just so you know, it's a classic at its best, I really liked it.