Review for Mark Twain Casino Review For Mark Twain Casino Google User Mar 6 '17 at 4:27 The staff is always very friendly and helpful. The slot machines are very tight though. Are your slot machines a Class ll or Class lll and are you State regulated? Just trying to figure out why there is never many big winners there. Also, I have a players card in which I never receive my promotions or rewards as I should and card never works in games. I come for enjoyment and leave most times frustrated. View full site to comment or like