A new analysis of the worldwide gambling business reveals the sector generates hundreds of billions in legal markets, but unregulated operations may be even larger. Sri Lanka is among countries grappling with how to regulate an activity that spans from licensed casinos to informal card games.
The global gambling industry operates across vastly different scales and legal frameworks, from glittering Colombo waterfront casinos to village card games and online trading apps, all built on the same fundamental principle: wagering money on outcomes beyond the bettor's control. According to recent industry analysis, the legal gambling sector—including licensed casinos, regulated sportsbooks, and approved betting applications—was valued at approximately $328 billion globally last year, with projections suggesting growth to nearly $580 billion within the next decade. Online betting and gaming alone is expected to exceed $200 billion by the early 2030s.
However, unregulated markets may represent a far larger portion of the industry. Industry research suggests the world's unlicensed online gambling market was worth an estimated $5.9 trillion in 2025, positioning it as effectively the third-largest economy globally after only the United States and China. Unlicensed operators reportedly capture approximately three-quarters of all money wagered online worldwide. In the United States alone, despite extensive legal betting options, illegal gambling operators generated nearly $100 billion in 2024, a figure that has grown even as more states have legalised betting.
Governments worldwide adopt dramatically different approaches to gambling regulation. Roughly 40 countries impose outright bans, many in the Middle East and North Africa based on Islamic principles treating games of chance as exploitative. Others occupy a grey zone where gambling is technically restricted but widely practised with inconsistent enforcement. An increasing number of nations, including the United Arab Emirates, are transitioning from prohibition toward licensed and regulated markets, believing controlled industries are more manageable than invisible black markets. Sri Lanka currently permits horse racing and licensed casinos while technically criminalising casual card games like Buruwa, though enforcement remains inconsistent. Parliament is considering sweeping reform through new legislation that would consolidate three separate ordinances into a single modern regulatory framework.