WinStar World Casino is owned and operated by the Chickasaw Nation. By this time, the gaming floor at WinStar has stretched to more than 380,000 square feet. It expanded in 2003 to include electronic table games and slots, and doubled in size four years later. WinStar opened in the early 1990s as a bingo hall near the Texas border. In fact, it’s in a rather unusual location: Oklahoma. The world’s largest casino isn’t on the Las Vegas Strip, Atlantic City or even in Macau. WinStar World Casino | Thackerville, Oklahoma, USA If you’re ready to experience the biggest and best casino resorts you might be wondering where exactly is the world’s biggest casino? You might be surprised. This is vastly different in the realm of online casinos where size takes on a different meaning, encompassing factors like game variety, digital space, and enticing bonuses such as no deposit bonuses that redefine the dimensions of gaming excitement. Every casino on our list boasts thousands of slots and table games to suit every taste and budget. Our experts have pulled out the tape measure to size up the largest casino floors in the world. Ignore this note if not based in Ontario. If located in that province, please go to Ontario Casinos. Note: If based in Ontario, any content mentioning bonuses, promotions, wagering or free spins is not intended for you, following Ontario regulations.