Japan’s casino industry is shaping up following the legalization of casino gambling under the Integrated Resort (IR) Implementation Act in 2018. The government’s policy framework authorizes the establishment of up to three integrated resorts, which combine casinos, hotels, convention centers, and other entertainment amenities. These resorts aim to enhance tourism and stimulate local economies through diversified leisure offerings. Local governments are required to submit formal proposals, which must meet strict criteria including regulatory compliance and responsible gaming measures, to receive approval from the central government. Regions such as Osaka, Yokohama, and Nagasaki have emerged as frontrunners seeking to host these resorts. The regulatory environment emphasizes rigorous oversight to ensure proper licensing, operational standards, and social safeguards. As the IR initiative progresses, the collaboration between government entities and private sector operators will be pivotal to the successful rollout and sustainable development of Japan’s casino industry.