Japan’s first casino resort broke ground in April 2025 and is now advancing steadily toward a 2030 opening. MGM Osaka is a JPY1.51 trillion ($9.66 billion) integrated resort on Yumeshima Island in Osaka Bay — here is the full construction update, what the resort will look like, and why it matters for Asia’s gaming market.
MGM Osaka is under active construction on Yumeshima Island, Osaka Bay. Groundbreaking took place April 24, 2025. The resort is the only approved integrated resort in Japan — the Nagasaki bid was rejected in 2023 leaving MGM with a temporary monopoly. Total investment: JPY1.51 trillion (~$9.66 billion). MGM is committing $450 million in equity during 2026. Planned opening: autumn 2030. Once open, Japan is projected to become the world’s third-largest gaming market after the US and Macau.
Japan legalized casino gambling in 2018 after years of fierce political debate. Seven years later, only one integrated resort has been approved — and it is one of the most ambitious construction projects in the global gaming industry. MGM Osaka, built on the artificial island of Yumeshima in Osaka Bay, is the culmination of what MGM CEO Bill Hornbuckle described as “more than 15 years of work.” When it opens in 2030, it will give MGM what could be the most valuable casino monopoly in the world: the only regulated casino resort in the third-largest economy on earth.
Project Specifications
Construction Update — June 2026
Construction on the primary resort structure began formally at the April 2025 groundbreaking ceremony attended by Osaka Governor Hirofumi Yoshimura and senior executives from MGM Resorts and Orix Corporation. Preparatory site works on Yumeshima had begun earlier, in late 2023.
As of June 2026, MGM is committed to allocating between $200 million and $225 million toward the Osaka project during the full calendar year, after already investing $140 million in Q1 2026. MGM CEO Bill Hornbuckle separately stated the company plans to commit approximately $450 million in equity to the project in 2026 total. The company confirmed its financing structure leaves the group “prefunded for this year,” meaning construction faces no immediate funding pressure.
A leadership change was also confirmed in May 2026: Nobuki Watanabe was named MGM Osaka Corp’s representative director and chairman from May 1, 2026, succeeding Toyonori Takahashi who moved to an advisory role. The five-member board now includes MGM CEO Bill Hornbuckle and Orix CEO Hidetake Takahashi alongside Watanabe.
“If Osaka reaches around $2 billion in annual cash flow, MGM’s share could translate to roughly $800 million — with the potential for even higher returns over time.”
— Bill Hornbuckle, CEO, MGM Resorts InternationalWhat MGM Osaka Will Feature
| Facility | Details |
|---|---|
| Casino Floor | 23,293 square metres · ~470 gaming tables · ~6,400 electronic gaming machines · By law, cannot exceed 3% of total indoor floor space |
| Hotels | 2,500 rooms across three brands: MGM Osaka, MGM Villas, and MUSUBI Hotel |
| Main Building | 27-story, 126-metre arc design “reminiscent of the Bellagio” in Las Vegas |
| Third Hotel Tower | 660 rooms, 56 metres high, 13 floors — includes tea ceremony and cultural activity studios |
| Entertainment | 3,500-seat theater for live performances and events |
| MICE Facilities | 730,000 square feet of meetings, incentives, conferences, and exhibitions space |
| Retail & Dining | High-end shopping mall, diverse dining options — specifics pending final announcement |
| Japan Tourism Hub | Dedicated facility promoting tourism throughout Japan — part of government requirement |
| Total Floor Space | Approximately 770,525 square metres gross floor area |
Japan’s Casino Rules for Players
Japan’s casino law imposes strict conditions on who can access the casino and how often they can visit — designed to protect Japanese residents from problem gambling.
- Entry fee — Japanese nationals must pay ¥3,000 ($21 USD) to enter the casino. Osaka residents pay an additional municipal fee, doubling their gate entry to $42.
- Visit limits — Japanese residents are limited to three casino visits per week and ten visits per month.
- Foreign nationals — International visitors enter free of charge with no visit frequency restrictions. This positions MGM Osaka primarily as a tourist destination.
- Casino floor restriction — By law, the casino floor cannot exceed 3% of the resort’s total indoor square footage — a strict limit designed to prevent the resort from becoming primarily a gambling destination.
Market context: About JPY6.4 trillion ($41 billion) in bets were made by Japanese citizens on overseas sports gambling websites in 2024 alone — demonstrating massive pent-up demand for regulated domestic gaming. When MGM Osaka opens in 2030, it will be the only legal casino available to Japanese nationals.
Why Japan Matters for Asian Gaming
Japan is the world’s third-largest economy. Bloomberg Intelligence projects MGM Osaka will generate around $5.9 billion in annual gross gaming revenue when fully operational — which would make Japan the world’s third-largest gaming market after the United States and Macau, overtaking Singapore and Australia.
MGM Resorts has drawn direct comparisons to Marina Bay Sands in Singapore — which generates over $3 billion in annual gaming revenue from a market of just 5.6 million people. Japan’s population of 125 million provides a theoretical demand base more than 22 times larger, though the strict entry fee and visit limits will moderate domestic participation significantly.
The resort will also benefit from new transport infrastructure. A new Osaka Metro station opened in January 2025 to serve Expo 2025 on Yumeshima and will eventually serve MGM Osaka. The Kintetsu Nara Line is being extended to further improve connectivity before the 2030 opening.
Frequently Asked Questions
Updated June 12, 2026. Sources: Inside Asian Gaming, Casino.org, Wikipedia MGM Osaka, and MGM Resorts International SEC filings. CasinoBait will update this article as construction milestones are confirmed.
