The title of the "richest" casino in the world is often a contest between the Galaxy Macau and the Venetian Macao, both located in the Cotai Strip of Macau, China. In terms of gross gaming revenue (GGR), Galaxy Macau has consistently led the pack in recent years, often generating several billion dollars annually. While the WinStar World Casino in Oklahoma is technically the largest in terms of floor space and number of gaming machines, it does not match the sheer financial volume of the Macau giants, which cater to a high-density market of VIP "whales" and mass-market players from across Asia. In the United States, the Wynn Las Vegas and Encore often lead in revenue for a single property, but the scale of the Macau market remains the global heavyweight for casino wealth. By 2026, the global casino market is valued at over $150 billion, with these massive integrated resorts in Macau serving as the primary drivers of that wealth, combining gambling with luxury retail, world-class dining, and massive arena-style entertainment venues.