Review for River Rock Casino Review For River Rock Casino Google User Nov 9 '16 at 9:32 I had fun at the slots. There was a good variety. I played the nickel slots, won some lost some; moved to the penny slots where I could still bet 5 cents but play it over 5 lines. I went in with a twenty and moved over to the penny slots when I was down and then left with more. Fun times View full site to comment or like