Review for Dakota Sioux Casino Review For Mustangs Steakhouse & Buffet Google User Jul 11 '18 at 3:35 Fairly large casino for South Dakota. Small poker room and blackjack areas. Machines are a little tight. Apparently they allow cigars in the casino and that was bothersome but otherwise the airflow is decent for smoking being allowed. There is no smoke free gaming area. It is kind of off the beaten path too. View full site to comment or like