No, not all casinos are smoke-friendly, and there has been a massive global shift toward smoke-free gaming environments in 2026. In the United States, states like Ohio, Illinois, and Maryland mandate that all indoor casinos be 100% smoke-free. Even in Las Vegas, the "capital" of gambling, the trend is moving toward cleaner air; Park MGM is famous for being the first fully smoke-free resort on the Strip, and many other properties (like The Wynn or Resorts World) have established large, high-tech non-smoking sections or "vape-free" zones. In many European and Asian markets, smoking is strictly relegated to enclosed, ventilated "smoking lounges" away from the main gaming floor. However, in traditional tribal casinos in some states and in many legacy properties in Nevada and Atlantic City, smoking is still permitted at most slot machines and certain table games. If you are sensitive to smoke, it is essential to check the specific property's policy before visiting, as even "non-smoking" sections in older casinos can suffer from "drift" due to aging ventilation systems.