River City Casino is a casino in Lemay, Missouri, in the greater St. Louis area. It is owned by Gaming and Leisure Properties and operated by Pinnacle. Hotel River City Casino &, Saint Louis: Bewertungen, authentische Reisefotos und günstige Angebote für Hotel River City Casino &. Bei TripAdvisor auf. River City Casino Blvd, St. Louis, MO, , United States of America, 4-star hotel in St. Louis with 6 restaurants, casino. Loved by guests. This is a deal breaker for me! I'm not a smoker and I'm very sensitive. They had a salad, hot, and dessert bar and each one had very tasty food and again all the staff was helpful and attentive. I don't mind, just took a few moments. Take that with a grain of salt.