Not all casinos have the same odds on their slot machines. The odds can vary significantly based on several factors, including the specific machine, its design, and the casino's policies. Each machine is programmed with a different return-to-player (RTP) percentage, which dictates how much of the money wagered is returned to players over time. Additionally, casinos may set their own payout rates based on competition, location, and target demographics. Slot machines can also have varying volatility levels, further influencing the odds of winning.