Blockchain’s entry into gaming began with prediction markets that use cryptocurrency and smart contracts to wager on real-world outcomes. What started as a niche experiment has evolved into a full technology stack that commercial operators are racing to deploy. This presentation examines how stablecoins, data oracles, and automated market makers combine to create wagering systems beyond existing gaming laws. Attendees will understand why prediction markets pose a lasting structural threat to tribal gaming, even if current court cases fail.