Our team of gambling experts reviews and updates these rankings regularly. Here’s our list of the top ten online casinos in Wisconsin. The Top List of Wisconsin Online Casinos 2023 Croix Chippewa Indians of Wisconsin in Turtle lake and the Oneida Nation in Green Bay receive permission to offer retail sports betting on casino premises. 2003 – Native tribes renegotiate their compacts and receive permission to operate 27 hours per day and expand their operations indefinitely.1993 – The State Lottery is prevented from offering any forms of commercial gambling.1991 – Wisconsin negotiates Class III gaming compacts with native American tribes, resulting in over 20 land-based casinos.1987 – Voters legalize pari-mutuel wagering and lottery.1965 – Wisconsin voters approve sweepstakes with a constitutional amendment.What are the Ho-Chunk casinos in Wisconsin?